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STM8L151F3P6 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151F3P6

STM8L151F3P6 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151F3P6 is an 8-bit ultra-low-power microcontroller with up to 16 MIPS at 16 MHz, 8 KB of Flash memory, and a 20-pin TSSOP package. It is designed for compact, power-constrained embedded systems requiring low-power operation, RTC functions, timers, and integrated data EEPROM. The STM8L151x2/3 family uses an enhanced STM8 CPU core with a CISC architecture and optimized low-power modes. An ultra-low-power microcontroller is a semiconductor device designed to minimize energy consumption during standby, sleep, and active operation. The STM8L151x2/3 family combines an 8-bit CPU core, Flash program memory, EEPROM, timers, GPIO, communication peripherals, and low-power management in one compact package. This device family is suitable when a controller must balance fast control-loop execution with restricted energy budgets. The STM8L151F3P6 provides 8 KB of Flash, up to 256 bytes of EEPROM according to the device description, and operation up to 16 MHz. It is identified as an STM8L EnergyLite microcontroller in distributor listings and is available in a 20-pin TSSOP package. The part is intended for low-voltage embedded designs where the MCU must handle control, sensing, communication, and periodic sensing without a high-power processor. The enhanced STM8 core provides increased processing power while retaining CISC advantages such as compact instruction representation and efficient code density. A 24-bit linear addressing space supports organized access to memory-mapped peripherals. The low-power architecture helps designers select suitable operating modes during idle periods and wake the controller for defined events or scheduled tasks. Typical applications include low-power sensor nodes, industrial monitoring modules, battery-powered instruments, building automation controls, portable measurement equipment, and embedded consumer devices. The 20-pin TSSOP package is useful for PCB layouts where a relatively small through-hole-style surface-mount footprint is preferred and when the design does not require a large high-pin-count microcontroller. When designing around STM8L151F3P6, verify the exact peripheral configuration, clock setup, pin multiplexing, memory limits, and low-power behavior in the manufacturer datasheet. The P6 suffix and package markings should be confirmed against the ordered device, and firmware should be tested for all required sleep, wake-up, RTC, and communication paths before production release. This page combines the verified manufacturer product information, distributor specifications, package details, and application-oriented design guidance. It also distinguishes electrically similar devices from true pin-for-pin drop-in alternatives, helping engineers make a defensible sourcing or redesign decision rather than treating unrelated low-power MCUs as direct substitutes.

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STM8L151G2U6 - 8-Bit 16MHz 4KB MCU | STMicroelectronics
STM8L151G2U6

STM8L151G2U6 - 8-Bit 16MHz 4KB MCU | STMicroelectronics

The STMicroelectronics STM8L151G2U6 is an 8-bit STM8L EnergyLite microcontroller with a 16 MHz clock, 4 KB of Flash program memory, and a 28-pin UFQFPN package measuring 4 x 4 mm. The device is designed for compact embedded-control systems where low power consumption, a small footprint, and integrated serial peripherals are important. Its operating voltage is listed from 1.8 V to 3.6 V, supporting battery-powered and low-voltage industrial equipment. The STM8L151 family belongs to the 8-bit microcontroller hierarchy: MCU, embedded microcontroller, low-power microcontroller, and semiconductor. This positioning places it between simple logic controllers and more capable 32-bit application processors. It is suitable for sensing, control, communication, and actuator-management functions where a dedicated 8-bit core can provide adequate performance without the cost, power, and board area of a higher-end processor. The STM8L151G2U6 combines a 16 MHz core with 4 KB of Flash memory and 41 I/O ports according to the product listing information. The STM8L151x4 and STM8L151x6 family documentation also identifies standard communication interfaces including SPI, I2C, and USART, along with an 8-bit timer. These peripherals support common embedded-system tasks such as sensor acquisition, external memory access, industrial serial links, and simple control loops. The exact peripheral counts and pin-level functions for the STM8L151G2U6 must be confirmed against the manufacturer pinout and datasheet before layout is released. Typical applications include compact environmental sensors, battery-powered condition-monitoring devices, LED-control modules, small motor-control boards, and low-power industrial instrumentation. The 1.8 V to 3.6 V supply range allows operation from single-cell energy-storage systems when the downstream regulator and cell chemistry are compatible. The 4 x 4 mm UFQFPN package also supports dense board layouts, although its fine pitch and exposed-pad requirements demand careful PCB design and assembly planning. For a new design, treat the STM8L151G2U6 as a low-power, compact, 8-bit control solution rather than a high-performance application processor. Confirm startup behavior, clock configuration, peripheral assignments, flash endurance requirements, and the exposed-pad connection in the manufacturer documentation. This page summarizes the verified device identity, package, memory, speed, voltage, and lifecycle information while highlighting the engineering checks that matter before schematic capture and PCB release.

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STM8L151G3U3 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151G3U3

STM8L151G3U3 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L151G3U3 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller with an enhanced STM8 CPU core, up to 16 MIPS at 16 MHz, and 8 KB of Flash memory. The device operates from 1.8 V to 3.6 V and is offered in a 28-pin UFQFPN package measuring 4 mm by 4 mm. Its 41 I/O ports support space-constrained embedded systems requiring low-power operation and a compact surface-mount footprint. An ultra-low-power microcontroller is a semiconductor designed to minimize energy consumption during active processing, standby, and low-power operating states. The STM8L family belongs to the STM8 8-bit MCU family and combines an EnergyLite architecture with integrated communications peripherals. This makes it suitable for battery-operated sensors, compact control modules, and connected industrial equipment where energy efficiency and fast wake-up behavior matter more than high arithmetic throughput. The STM8L151G3U3 combines a 16 MHz maximum clock with 8 KB of Flash, I2C, SPI, UART, and PWM capabilities, and up to 41 I/O ports. Its 1.8 V to 3.6 V supply range supports low-voltage embedded designs, while the 28-pin UFQFPN package limits board area. The enhanced STM8 CPU delivers up to 16 MIPS, giving useful processing performance for control loops, communication handling, and local peripheral management. The device is designed around the STM8L low-power architecture, allowing firmware to balance processing activity with low-power modes. I2C and SPI support digital sensors and external storage, UART supports point-to-point serial links, and PWM supports motor, dimming, and proportional-control functions. Because software, pin multiplexing, clock configuration, and low-power behavior are closely integrated, designers should follow the manufacturer datasheet when assigning alternate-function pins and configuring clocks. Typical applications include compact environmental sensors, low-power industrial condition-monitoring nodes, building controls, battery-powered accessories, actuator controllers, and connected measurement instruments. The 41 I/O ports are particularly useful when a design must connect multiple discrete inputs and outputs while avoiding a larger package. For designs requiring more memory, peripheral breadth, or a different footprint, the STM8L family can be evaluated before committing the PCB layout. A critical implementation consideration is the exposed-pad and thermal arrangement of the UFQFPN package. Place the required input and output decoupling capacitors close to their associated pins, follow the manufacturer pin-definition table when routing PCB traces, and expose the pad through a properly sized copper land pattern. Verify the final board against the package drawing and recommended land pattern rather than relying only on the nominal 4 mm by 4 mm body size. This product page combines the manufacturer's device information, distributor listing details, application engineering guidance, package considerations, and drop-in replacement analysis. It is designed to help engineers evaluate the STM8L151G3U3 against same-package alternatives before committing to a compact, low-power PCB design.

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STM8L151G3U6 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151G3U6

STM8L151G3U6 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151G3U6 is an ultra-low-power 8-bit microcontroller with a 16 MHz STM8 CPU, 8 KB Flash memory, 1 KB RAM, and a 28-pin UFQFPN 4x4 mm package. Its operating supply range is 1.8 V to 3.6 V, and the enhanced STM8 core provides up to 16 MIPS at 16 MHz for energy-efficient embedded control. The device is identified as an STM8L EnergyLite MCU and is suitable for compact, battery-operated systems. An ultra-low-power microcontroller is a semiconductor controller designed to minimize energy consumption while monitoring sensors, controlling actuators, and managing communication or timing functions. The STM8L family belongs to the 8-bit microcontroller hierarchy, where an embedded MCU integrates processor core, memory, GPIO, timers, and communication peripherals on one package. This integration reduces component count and supports portable, low-power industrial, sensor, consumer, and medical-control designs. Key verified features include 8 KB of Flash organized as 8K x 8, 16 MHz maximum clocking, 8-bit processing, a 1.8 V to 3.6 V supply range, and 28-pin UFQFPN packaging. The manufacturer describes the STM8L151x2/3 devices as offering increased processing power while maintaining an ultra-low-power architecture. The small 4x4 mm package supports space-constrained designs, while the exposed-pad construction requires careful PCB thermal and layout implementation. The STM8L151G3U6 is primarily controlled by its enhanced 8-bit STM8 core. Its memory arrangement provides a practical balance between firmware storage and working RAM for compact control tasks. The 16 MHz operating frequency supports responsive firmware execution, while the low-voltage operating range allows operation from common low-energy supply rails when the system power architecture supports them. Typical applications include battery-powered sensor nodes, compact industrial controllers, low-power IoT equipment, building automation modules, portable measurement products, and small consumer-device controllers. The device is particularly appropriate when board area, standby energy use, and a simple 8-bit control platform matter more than high arithmetic throughput. Designers should place decoupling capacitors close to the supply pins, follow the manufacturer’s exposed-pad land-pattern requirements, and verify signal-level compatibility with connected peripherals. Do not infer pin functions from the package count alone; use the official STM8L151G3 documentation for the complete pinout and exposed-pad connection. This page combines verified distributor and manufacturer information, same-family drop-in alternatives, comparison data, and practical design guidance for engineers evaluating STM8L151G3U6 sourcing and board compatibility.

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STM8L151G4U3 - 16MHz 16KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151G4U3

STM8L151G4U3 - 16MHz 16KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151G4U3 is an ultra-low-power 8-bit STM8L microcontroller with a 16 MHz maximum CPU frequency, 16 KB of embedded Flash memory, and a 28-pin UFQFPN package measuring 4 mm by 4 mm. It operates from a 1.8 V to 3.6 V supply range, making it suitable for compact, battery-operated, and energy-conscious embedded systems. An ultra-low-power microcontroller is an integrated circuit designed to execute firmware while minimizing energy consumption. The STM8L family combines an 8-bit CPU, embedded nonvolatile memory, analog and digital peripherals, and low-power operating modes in one device. This positions the STM8L151G4U3 within the hierarchy of microcontroller, embedded processor, semiconductor, and low-power system-on-chip design. Key features include 16 KB of Flash, a 16 MHz CPU, and up to 1 KB of data EEPROM. The peripheral set described for this device includes an RTC, LCD support, timers, USART, I2C, SPI, ADC, DAC, and comparators. These integrated resources can reduce external component requirements in meter, sensor-node, industrial-control, and low-power consumer designs. The STM8L architecture provides a compact CISC-based platform with a broad selection of communications, timing, analog-conversion, and display-related peripherals. Because the verified product information identifies the part as an 8-bit ultra-low-power MCU, it is particularly appropriate for control tasks that require deterministic peripheral access and low standby power rather than the processing throughput of a 32-bit Cortex-M processor. Typical applications include low-power sensing nodes, compact industrial controllers, battery-powered meters, panel-control systems, and communication-enabled sensor modules. The integrated USART, I2C, and SPI interfaces support serial sensors and transceivers, while the ADC, DAC, and comparators enable local measurement, signal generation, and threshold detection without requiring separate analog devices. Designers should verify the exact pin multiplexing, clock configuration, low-power current, and peripheral operating limits in the manufacturer datasheet before layout freeze. A 28-pin UFQFPN also requires careful escape-routing and inspection because its fine-pitch pads are not suitable for conventional hand soldering without appropriate equipment and process control. This product page consolidates verified distributor pricing, package information, lifecycle-oriented selection guidance, and traceable comparison data with practical design notes. It is intended to help engineers identify the correct low-power MCU and evaluate genuinely same-package alternatives without implying that different architectures or package variants are drop-in replacements.

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STM8L151G4U6 - 16MHz 16KB Ultra-Low-Power MCU | ST
STM8L151G4U6

STM8L151G4U6 - 16MHz 16KB Ultra-Low-Power MCU | ST

The STMicroelectronics STM8L151G4U6 is an ultra-low-power 8-bit microcontroller with a 16 MHz core, 16 KB of Flash memory, 2 KB of RAM, and a 28-pin UFQFPN package measuring 4 x 4 mm. Its 1.8 V to 3.6 V operating supply range and low-power-oriented STM8L architecture suit compact embedded products that need efficient control, sensing, communication, and low standby consumption. A microcontroller is an integrated circuit that executes embedded control software and connects external peripherals through digital and analog I/O. In the device hierarchy, the STM8L151G4U6 is an 8-bit MCU, part of the STM8L ultra-low-power family, and part of the broader embedded processor category. Its integrated flash memory stores firmware, while RAM supports execution state and application data. The supplied product data identifies 16 KB of Flash, 2 KB of RAM, a 16 MHz maximum clock, 28 pins, and operation from 1.8 V to 3.6 V. Search results also associate the STM8L151x4/6 family with RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, and comparators. Exact peripheral availability, GPIO mapping, electrical limits, and low-power current figures must be checked against the manufacturer documentation for the exact ordering code. At 16 MHz, the device provides substantially more processing headroom than lower-clock 8-bit designs while retaining the simplicity of the STM8 architecture. The compact 4 x 4 mm UFQFPN package supports space-constrained assemblies, but its fine pitch requires careful PCB layout, solder inspection, and adequate thermal management during reflow and production. Typical uses include low-power sensor nodes, compact industrial controllers, battery-powered instruments, meter and keypad interfaces, communication modules, and small consumer appliances. Engineers should select peripheral functions by device variant rather than assuming every member of the STM8L151 family has identical resources. Firmware migration also depends on the exact pinout, clock tree, memory map, startup file, and development-tool configuration. For PCB implementation, verify the exposed-pad connection, decoupling requirements, SWIM programming access, and all alternate-function assignments in the official package drawing. Validate low-power modes against the actual peripheral set because stopping timers, ADC conversion, serial interfaces, or LCD-related circuitry can change achievable standby current. This page consolidates verified distributor specifications, family-level capabilities, sourcing references, and strict drop-in replacement findings. It separates confirmed STM8L151G4U6 values from family-level information so engineers can make a defensible sourcing and design decision without assuming unverified electrical or lifecycle details.

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STM8L151G6U3 - 16MHz 32KB Low-Power MCU | ST
STM8L151G6U3

STM8L151G6U3 - 16MHz 32KB Low-Power MCU | ST

STMicroelectronics STM8L151G6U3 is an ultra-low-power 8-bit microcontroller with a 16 MHz maximum clock, 32 KB of Flash memory, and a 28-pin UFQFPN package measuring 4 mm by 4 mm. It operates from a 1.8 V to 3.6 V supply and targets compact embedded systems that require energy-conscious control, mixed-signal measurement, and communication peripherals without requiring a high-end 32-bit processor. An ultra-low-power microcontroller, or ULP MCU, is an energy-efficient semiconductor designed to remain responsive while consuming minimal power during active operation, standby, and wake-up transitions. The STM8L151 belongs to the STM8L EnergyLite family within STMicroelectronics' broader hierarchy of 8-bit microcontrollers, embedded processors, and semiconductor devices. Its low-power architecture makes it suitable for battery-operated sensors, portable instruments, industrial controls, and connected products that spend substantial time waiting for events. The STM8L151G6U3 provides 32 KB Flash, 2 KB of on-chip RAM, a 12-bit ADC, and a DAC according to the supplied manufacturer and distributor data. Its integrated peripheral set also includes an RTC, data EEPROM, timers, USART, I2C, SPI, comparators, and LCD support. These resources allow a compact design to sample analog inputs, maintain real-time information, communicate with sensors or external controllers, and drive a segment LCD without requiring several separate devices. The enhanced STM8 CPU core operates at up to 16 MHz, providing up to 16 MIPS according to the manufacturer family information. The device combines a 28-pin 4 mm by 4 mm UFQFPN package with analog and serial-interface functions, enabling high component density in space-constrained products. Its exact peripheral configuration, current consumption, timing limits, and absolute electrical limits should be confirmed against the current STMicroelectronics datasheet before a production design is released. Typical applications include low-energy environmental sensors, battery-powered measurement modules, compact industrial controllers, wearable accessories, smart-home endpoints, and small instrumentation products. For a sensor node, the ADC and timers can support periodic measurements while the RTC and low-power modes help control idle consumption. The USART, I2C, and SPI interfaces support external sensors, transceivers, memory, and host controllers, while LCD support is useful for local human-readable output. A critical design consideration is supply-voltage headroom. The MCU operates from 1.8 V to 3.6 V, so battery chemistry, regulator dropout, transient response, and brownout behavior must be evaluated together. Decoupling capacitors should be placed close to the supply pins, unused inputs should be configured appropriately, and low-power modes should be validated with the intended peripheral states rather than only with the core active. This page consolidates verified manufacturer and distributor information, package and interface guidance, pricing context, and practical application analysis. It also distinguishes documented functions from parameters that require confirmation from the manufacturer datasheet, supporting faster engineering comparison without treating unverified alternatives as drop-in replacements.

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STM8L151G6U6 - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics
STM8L151G6U6

STM8L151G6U6 - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics

The STM8L151G6U6 is an 8-bit ultra-low-power microcontroller from STMicroelectronics' STM8L EnergyLite family. It operates at a clock speed of 16 MHz and features 32 KB of Flash memory, 2 KB of SRAM, and 1 KB of data EEPROM. The device is housed in a compact 28-pin UFQFPN (4x4 mm) package, making it ideal for space-constrained applications. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit central processing unit (CPU), which processes data in 8-bit chunks. It integrates a processor core, memory (Flash, SRAM, EEPROM), and programmable peripherals (timers, communication interfaces, ADC, DAC) on a single integrated circuit. In the system hierarchy, an 8-bit MCU is a type of embedded controller, which falls under the broader category of microcontrollers, which are themselves a subset of integrated circuits used in embedded systems. The STM8L151G6U6 is specifically optimized for ultra-low-power operation, targeting battery-powered and energy-harvesting applications. Key features of the STM8L151G6U6 include a 16 MHz CPU clock, 32 KB Flash memory, 2 KB SRAM, and 1 KB data EEPROM. It also integrates a 12-bit ADC, a 12-bit DAC, two comparators, an RTC, LCD driver, and multiple communication interfaces (USART, I2C, SPI). The device supports a wide supply voltage range of 1.8V to 3.6V, and its ultra-low-power modes include a Halt mode with 0.35 µA current consumption, making it suitable for battery-powered devices. The STM8L151G6U6 is built on ST's low-power 8-bit core, which is designed for energy efficiency. It features a modular peripheral set that is shared across STM8 and STM32 families, simplifying code migration. The device includes a 4-channel DMA controller, which offloads data transfer tasks from the CPU, improving overall system performance. The ultra-low-power design extends battery life in portable applications. Typical applications include portable medical devices, sensor nodes, smart meters, and industrial control systems. The device's low power consumption and rich peripheral set make it ideal for applications requiring long battery life and reliable operation. For example, in a wireless sensor node, the STM8L151G6U6 can wake up periodically, read sensors, and transmit data via its USART or SPI interface, then return to Halt mode to conserve power. When designing with the STM8L151G6U6, ensure proper decoupling of the power supply pins with 100 nF capacitors placed close to the VDD and VSS pins. The device's low-power modes require careful configuration of the clock system and peripheral clocks to achieve the specified current consumption. Additionally, the UFQFPN-28 package has an exposed pad that should be connected to ground for optimal thermal performance.

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STM8L151G6U7 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151G6U7

STM8L151G6U7 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151G6U7 is an ultra-low-power 8-bit CISC microcontroller with a 16 MHz CPU, 32 KB of Flash memory, integrated EEPROM, and a 28-pin UFQFPN 4x4 mm package. It belongs to the medium-density STM8L151x4/6 device family, combining low-power sensing and control capabilities with ADC, DMA, and embedded EEPROM resources. The target is the STM8L EnergyLite line, where the MCU provides dedicated low-power operating modes and fast wake-up behavior for compact, battery-operated systems. An ultra-low-power microcontroller is a semiconductor designed to minimize energy consumed during idle, sleep, and standby operation while still providing enough processing capability for control tasks. The STM8L family sits within the broader hierarchy of microcontroller, embedded processor, and semiconductor products. Its CISC architecture and integrated peripherals are intended to reduce external component count in low-speed sensing, metering, portable-instrumentation, and industrial-control designs. Key verified characteristics include a maximum CPU frequency of 16 MHz, 32 KB of Flash organized as 32K x 8, and a 28-pin UFQFPN package. The supplied distributor listing also identifies 2 KB of EEPROM, while the manufacturer describes the STM8L151G6 as a medium-density member of the STM8L ultra-low-power 8-bit family. Its integrated ADC and DMA support makes it useful where sampled analog signals must be transferred without excessive processor involvement. The STM8L151G6U7 architecture is tailored for low-power sensing and embedded control rather than high-throughput applications. Flash provides the main firmware area, integrated EEPROM supports nonvolatile data storage, and the ADC/DMA resources reduce the need for separate signal-acquisition components. The 4x4 mm UFQFPN footprint is suitable for space-constrained assemblies, although its fine pitch requires capable PCB assembly and careful land-pattern design. Typical uses include battery-powered environmental sensors, compact metering instruments, low-speed industrial controllers, portable measurement equipment, and connected sensing nodes. The MCU is appropriate when energy efficiency, integrated data acquisition, and a small footprint matter more than a high-pin-count interface or a large program-memory budget. Designers should also evaluate the available peripheral mix and PCB assembly capability for the 0.6 mm-class package before releasing a design to production. For implementation, follow the STMicroelectronics pin assignment and recommended decoupling guidance rather than relying on a generic QFN land pattern. Verify the exposed-pad connection, programming interface, oscillator arrangement, and ADC input routing against the official device documentation. Because the provided source snippets do not expose the complete pin table, electrical limits, or operating-temperature grades, those details require confirmation in the manufacturer datasheet before layout signoff. This page combines verified manufacturer and distributor facts with package-level selection guidance, comparison criteria, sourcing links, and engineering-oriented usage analysis. It distinguishes confirmed device characteristics from unavailable details instead of estimating missing electrical values, helping engineers make an initial selection while preserving a traceable path to the official STM8L151G6 documentation.

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STM8L151K2U6 - 16MHz 8-Bit Ultra-Low-Power MCU | STMicroelectronics
STM8L151K2U6

STM8L151K2U6 - 16MHz 8-Bit Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151K2U6 is an ultra-low-power 8-bit microcontroller with an STM8L EnergyLite CPU core, operating up to 16 MHz and delivering up to 16 MIPS of processing performance. It includes 4 KB of flash program memory and is supplied in a 32-pin UFQFPN package measuring 5 mm by 5 mm. The device is designed for compact, low-energy embedded systems where fast wake-up, low supply voltage operation, and a broad set of peripheral functions are important. An STM8L is an ultra-low-power microcontroller family within the wider microcontroller and embedded-processing hierarchy. It combines a simple 8-bit CISC architecture with power-management features intended for battery-operated and always-on equipment. The STM8L151x2 and STM8L151x3 devices share the low-density platform, while the K2 designation identifies this 32-pin, 4 KB Flash configuration. This combination allows designers to use the same MCU family for sensing, control, communication, and low-power monitoring functions. The STM8L151K2U6 operates from a 1.8 V to 3.6 V supply, as stated by the manufacturer product information, and provides a maximum clock speed of 16 MHz. Its 41 I/O ports support compact embedded layouts, while the 12-bit and 30-bit peripheral capabilities referenced in the product listing support common control and measurement tasks. The low-power architecture is useful for sensor nodes, industrial controls, portable instruments, and battery-powered accessories. The part is identified as an active, ultra-low-power MCU by STMicroelectronics and is offered in a 32-pin UFQFPN package. Its principal engineering trade-off is the modest 4 KB Flash capacity compared with larger STM8 devices. Firmware should therefore be structured for efficient storage, and application requirements involving graphical interfaces, large protocol stacks, or extensive data logging should be reviewed before design freeze. Typical applications include industrial sensor nodes, low-power wireless-control endpoints, portable measurement products, and embedded accessory controllers. Designers should preserve adequate decoupling close to the supply pins, confirm exposed-pad soldering requirements from the manufacturer datasheet, and validate low-power modes against the actual sensor and communication load. These measures help preserve the intended low-power behavior while maintaining signal integrity and reliable startup. This page organizes the manufacturer product information, distributor listing details, package characteristics, and application guidance for engineers evaluating STM8L151K2U6. It also highlights the memory-density limitation, supply-voltage range, low-power positioning, and practical PCB considerations that distinguish this MCU from larger STM8L variants.

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STM8L151K3U3 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151K3U3

STM8L151K3U3 - 16MHz 8KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151K3U3 is an ultra-low-power 8-bit microcontroller with a 16 MHz enhanced STM8 CPU core, up to 16 MIPS processing performance, and 8 KB of embedded Flash memory. The device is packaged in a 32-pin UFQFPN with exposed pad measuring 5 mm by 5 mm and operates from a 1.8 V to 3.6 V supply range. A microcontroller is a programmable semiconductor that combines a processor core, memory, and peripherals into one compact device. The STM8L belongs to the STM8L EnergyLite family, a low-power branch of STM8 microcontrollers used for embedded control, sensing, communications, and battery-powered products. Its role within an embedded system is to execute application firmware, acquire sensor data, control outputs, and coordinate low-energy operating modes. The STM8L151K3U3 provides 41 I/O ports and an 8 KB Flash program memory within its 32-pin package. Its enhanced STM8 core reaches 16 MIPS at 16 MHz, supporting responsive control tasks while the EnergyLite architecture emphasizes low-power operation. The 1.8 V to 3.6 V operating range accommodates 1.8 V and 3.3 V systems, while the UFQFPN-32 package supports compact surface-mount PCB layouts. The STM8L151x2 and STM8L151x3 devices target low-density designs where memory economy and low power are more important than a large general-purpose peripheral set. The STM8L151K3U3 is the UFQFPN-32 ordering configuration with 8 KB Flash. Firmware should be selected around the STM8L low-power operating model, and unused pins should be handled according to the manufacturer pin-description and connection guidance. Typical applications include low-power sensor nodes, compact industrial controls, building and access equipment, battery-operated instruments, connected sensing devices, and portable products. Its 41 I/O ports are useful for digital monitoring and control, while the 8-bit architecture and 16 MHz clock are appropriate for embedded tasks that do not require a high-performance 32-bit processor. A key design consideration is the exposed-pad thermal and electrical connection in the UFQFPN package. The exposed pad should be connected according to the manufacturer layout guidance, and the PCB should provide suitable copper area for heat spreading and low-impedance supply distribution. Firmware must also verify the device's low-power wake-up behavior against the response time required by the end application. This page combines manufacturer specifications, package and sourcing details, practical application guidance, and verified comparison information. It is intended to help engineers assess whether the STM8L151K3U3's memory size, I/O count, clock rate, voltage range, and low-power architecture match a specific embedded-control design.

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STM8L151K3U6 - 16MHz 8KB Low-Power MCU | STMicroelectronics
STM8L151K3U6

STM8L151K3U6 - 16MHz 8KB Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151K3U6 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller with up to 16 MIPS at 16 MHz, 8 KB of Flash memory, and a 32-pin UFQFPN package rated for a 1.8 V to 3.6 V supply range. Its combination of an 8-bit CISC core, compact footprint, and low-power operation suits embedded control, sensing, and connected battery-powered products. An ultra-low-power microcontroller is an embedded semiconductor designed to execute control tasks while minimizing energy consumption during active operation, sleep, and standby. The STM8L151K3 belongs to the STM8L EnergyLite hierarchy of 8-bit microcontrollers, combining real-time control with peripheral integration for compact industrial, consumer, and IoT equipment. The principal characteristics include a maximum clock frequency of 16 MHz, processing performance up to 16 MIPS, 8 KB of program Flash, and approximately 41 I/O ports. According to the STMicroelectronics product page, the enhanced STM8 core increases processing power while retaining the architecture's straightforward embedded-control focus. Operation from 1.8 V to 3.6 V also allows integration with low-energy sensor nodes and modern 3.3 V system rails. The device's 32-pin UFQFPN package provides a compact surface-mount solution with an exposed pad. Its small land pattern is useful in space-constrained products, although thermal design, soldering profile, and exposed-pad layout must follow the manufacturer's package guidance. The specified temperature options cover −40 °C to 85 °C or −40 °C to 125 °C, supporting both commercial and extended-temperature industrial designs. Typical applications include low-power sensor nodes, building and industrial control modules, compact instrumentation, battery-operated accessories, and IoT equipment that periodically wakes to acquire and process data. The 8-bit architecture is especially effective for control loops, user-interface handling, communications, and peripheral coordination where simple instruction execution and deterministic behavior are more important than high computational throughput. When laying out a circuit, treat the exposed thermal pad and its via pattern as part of the electrical and thermal design rather than as an optional copper feature. Confirm pin functions, decoupling requirements, programming connections, and operating limits against the manufacturer datasheet for the exact ordering code before releasing the PCB. This page combines the manufacturer product information with package, application, purchasing, and drop-in replacement guidance to help engineers evaluate the STM8L151K3U6 before schematic capture and PCB layout.

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STM8L151K4T3 - 16MHz 16KB Ultra-Low-Power 8-Bit MCU | ST
STM8L151K4T3

STM8L151K4T3 - 16MHz 16KB Ultra-Low-Power 8-Bit MCU | ST

The STMicroelectronics STM8L151K4T3 is an ultra-low-power 8-bit microcontroller operating at up to 16 MHz, with 16 KB of Flash memory and a 32-pin LQFP 7 x 7 mm package. It belongs to the medium-density STM8L ultra-low-power family, combining low-power operation with embedded control peripherals in a compact surface-mount package. A microcontroller is a programmable semiconductor that integrates a CPU, Flash program memory, data memory, timers, communication interfaces, and GPIO into one device. The STM8L family is designed for embedded systems where energy efficiency, deterministic peripheral access, and low standby current are more important than the processing power associated with 32-bit microcontrollers. The STM8L151K4T3 is therefore a microcontroller rather than a general-purpose processor. The device provides 16 KB of Flash memory, up to 16 MHz clocking, and 1 KB of data EEPROM according to the STM8L151 datasheet. Its peripheral set includes real-time clock, timer, LCD, and low-power functions. These characteristics support compact battery-operated products, industrial controllers, measurement equipment, and user-interface systems in which one MCU must combine control logic, display handling, and periodic sensing. The STM8 architecture provides an 8-bit execution model and a compact peripheral set intended for low-cost, low-power control. Ultra-low-power modes allow the MCU to spend substantial operating time in reduced-energy states between sensor readings or user interactions. Design decisions should account for the relationship between active-mode clocking, peripheral activity, and the selected regulator configuration rather than treating the 16 MHz maximum frequency as a continuous-power figure. Typical uses include low-energy sensor nodes, battery-powered meters, industrial control panels, programmable timers, LCD-driven instruments, and compact consumer appliances. In an LCD instrument, the integrated display-related resources can reduce the need for external display-control circuitry. In a battery-powered sensor, low-power operating modes can extend service intervals by reducing the amount of time the processor and peripherals remain active. When designing the PCB, provide the supply and decoupling connections specified in the STMicroelectronics application guidance, keep high-current and sensitive signal paths separated, and verify external component ratings against the selected I/O and supply conditions. Firmware should also use the low-power routines and peripheral configuration sequence described in the device reference documentation rather than assuming a generic 8-bit MCU startup model. This product page organizes the STM8L151K4T3 specifications, qualified same-package alternatives, application guidance, and design notes into a concise engineering reference. It supports initial device selection while directing detailed electrical-limit, pin, and firmware decisions to the manufacturer documentation.

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STM8L151K4T6 - 16MHz 16KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151K4T6

STM8L151K4T6 - 16MHz 16KB Ultra-Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L151K4T6 is an ultra-low-power 8-bit STM8L microcontroller rated up to 16 MHz, with 16 KB of Flash memory, 2 KB of RAM and 1 KB of data EEPROM in a 32-pin LQFP (7x7) package. The device combines an STM8 8-bit CPU with low-power operation, analog conversion, timers, RTC capability, LCD support, and serial peripherals, making it suitable for compact embedded systems that must balance processing capability, low standby demand and board area. An ultra-low-power microcontroller is a semiconductor controller designed to minimize energy consumption while retaining the processing, sensing and communication functions needed for embedded products. The STM8L151 belongs to the STM8L hierarchy of low-power 8-bit MCUs, with the STM8L151K4 family positioned between simpler low-cost STM8 devices and higher-density members with larger memory capacities. Its analog and timing resources allow the MCU to supervise sensors, operate human-interface controls and manage low-speed communications without requiring several discrete components. Key features include 16 KB Flash, 2 KB RAM, 1 KB EEPROM and a maximum 16 MHz clock. Integrated resources include an ADC, DAC, comparators, timers, USART, I2C and SPI interfaces, plus RTC and LCD-related capabilities identified for the STM8L151 family. These peripherals reduce external component count in battery-operated instruments, small industrial controls, sensor nodes and compact consumer equipment. The STM8L architecture is based on an 8-bit CISC-style core and provides an economical platform for control-oriented firmware. Its combination of EEPROM, RTC capability, analog peripherals and multiple communication interfaces allows designers to retain calibration data, acquire analog inputs, produce an analog output and exchange data with external sensors or actuators from one controller. The 32-LQFP package also exposes enough I/O for keypad scanning, display control and peripheral connections in space-constrained designs. Typical applications include battery-powered measurement instruments, compact energy meters, industrial sensor interfaces, LCD-based control panels, environmental monitoring, portable accessories and low-power building-control nodes. Its serial interfaces support sensors and external transceivers, while the timers and comparators simplify periodic sampling, edge detection and threshold-based control tasks. The principal design consideration is the operating-voltage envelope. Distributor data identifies 2.5 V and 3.3 V supply use, while an operating-power-supply indication of 3.6 V also appears in available material; designers must resolve the exact minimum and maximum limits against the manufacturer datasheet for the selected voltage variant before final schematic release. External bypass capacitors, oscillator requirements and unused-pin handling should follow ST's reference guidance. This page consolidates verified manufacturer and distributor information, same-package alternatives, parameter comparisons and practical selection guidance. It adds engineering context around memory, interfaces, analog functions and supply constraints while clearly identifying specifications that still require confirmation from the manufacturer datasheet.

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STM8L151K6T3 - 8-Bit 16MHz Ultra-Low-Power MCU | STMicroelectronics
STM8L151K6T3

STM8L151K6T3 - 8-Bit 16MHz Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151K6T3 is an 8-bit ultra-low-power STM8L EnergyLite microcontroller with a 16 MHz clock, 32 KB Flash memory, 1 KB data EEPROM, and a 32-LQFP 7 x 7 mm package. It is designed for energy-sensitive embedded control applications that require low-power operation, compact integration, and embedded peripherals. The device operates from 1.8 V to 3.6 V and is available in the -40°C to +85°C temperature range. Its 41 I/O ports provide substantial external connectivity for sensors, human-interface equipment, and compact control systems. An ultra-low-power 8-bit microcontroller is a category of embedded semiconductor intended to minimize energy consumption while executing control tasks. Within the broader hierarchy, the STM8L151K6T3 belongs to the STM8L family, STM8 8-bit microcontrollers, and the microcontroller product class. Its EnergyLite architecture is relevant to battery-operated instruments, low-power sensors, meters, and portable equipment where duty-cycled sleep operation can extend operating time between battery replacements or maintenance visits. The STM8L151K6T3 provides 32 KB of Flash for firmware, 1 KB of data EEPROM for retained parameters, and a maximum clock frequency of 16 MHz. Its 41 I/O ports support external interfacing, while integrated 12-bit ADC and timer resources reduce the need for separate components. The 1.8 V to 3.6 V operating range accommodates common 2.5 V and 3.3 V system rails. The 32-LQFP package measures 7 x 7 mm and supports surface-mount manufacturing. The STM8L151K6T3 is positioned between simple 8-bit controllers and more complex 32-bit microcontrollers. It provides the direct addressing and compact peripheral set associated with the STM8 family while retaining a 16 MHz operating clock. The 32 KB Flash capacity supports more structured firmware than the smallest STM8 devices, and the inclusion of EEPROM and an ADC makes the part suitable for self-contained measurement and control nodes without extensive external circuitry. Typical applications include compact industrial control modules, battery-powered environmental sensors, electronic utility meters, compact keypads, and low-power human-interface devices. In a sensing product, the MCU can acquire analog measurements through its 12-bit ADC, apply control logic, and manage a low-duty-cycle operating profile. The 41 available I/O ports also make it practical to connect multiple digital inputs, displays, indicators, or communication interfaces. Designers should review the complete manufacturer datasheet for the exact pin assignments, peripheral multiplexing, oscillator options, and low-power modes before laying out the PCB. Particular attention should be paid to supply decoupling, analog-input routing, unused I/O handling, and the configuration of pins shared by multiple peripherals. These details are essential for reliable low-power operation and avoiding conflicts between LCD, timer, ADC, and communication functions. This page consolidates the verified manufacturer, distributor, and cross-reference information for the STM8L151K6T3, then adds application guidance, parameter comparisons, procurement context, and drop-in replacement analysis. It is intended to help engineers identify whether the 32 KB, 16 MHz, 8-bit configuration matches their PCB and firmware requirements before committing to a design.

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STM8L151K6T6 - 16MHz 32KB 8-Bit MCU | STMicroelectronics
STM8L151K6T6

STM8L151K6T6 - 16MHz 32KB 8-Bit MCU | STMicroelectronics

STMicroelectronics STM8L151K6T6 is an ultra-low-power 8-bit EnergyLite microcontroller with a 16 MHz clock, 32 KB Flash memory, 2 KB RAM and a 32-pin LQFP 7 x 7 mm package. It operates from 1.8 V to 3.6 V according to the available specification data. The device belongs to the medium-density STM8L151x4/6 family, combining an economical 8-bit architecture with low-power-oriented embedded features for compact control systems. An 8-bit microcontroller is a microprocessor core integrated with Flash memory, RAM, timers, serial interfaces, GPIO and other peripherals on one semiconductor package. The STM8L family sits within the broader embedded-controller hierarchy: MCU → microcontroller → embedded processing IC → semiconductor. Its low-power positioning makes it useful where the system must continue monitoring or controlling sensors while limiting energy consumption between active operations. The verified feature set includes 16 MHz maximum clock speed, 32 KB of Flash organized as 32K x 8, 2 KB RAM, an 8-bit instruction set and a 32-pin LQFP package. One indexed source lists 41 I/O ports, although the exact pin names and exposed functions were not included in the supplied data. The LQFP-32 package provides a conventional surface-mount footprint with accessible leads, making the MCU suitable for compact control boards assembled with standard pick-and-place and reflow processes. The STM8L151x4/6 architecture is designed for embedded control rather than high-compute workloads. Its Flash memory supports firmware storage, while the 2 KB SRAM provides working memory for control logic, state variables and peripheral buffers. Operating at up to 16 MHz provides sufficient processing bandwidth for digital control, sensor aggregation, human-interface input, communication tasks and supervisory functions without requiring a higher-complexity MCU. Typical uses include low-power sensor controllers, compact industrial control modules, battery-operated instruments, LCD-oriented control panels, access-control terminals and small automation nodes. The 1.8 V minimum operating voltage supports low-energy system architectures, while the 3.6 V maximum accommodates conventional 3.3 V equipment when the designer applies suitable decoupling and verifies absolute maximum limits. Designers should preserve the STM8L151x4/6 power and peripheral configuration during firmware bring-up, including clock initialization, flash programming, GPIO assignment and low-power mode transitions. Component availability, complete electrical characteristics and exact pin functions should be confirmed against the current STMicroelectronics datasheet before a production layout is released. This product record combines verified distributor specifications, an official manufacturer resource, comparison data and engineering-oriented application guidance. It also distinguishes genuine package-compatible options from broader functional alternatives, helping procurement and design teams evaluate replacement risk without relying on part-name similarity alone.

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STM8L151K6U3 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151K6U3

STM8L151K6U3 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L151K6U3 is an ultra-low-power 8-bit microcontroller with a 16 MHz core, 32 KB Flash memory, and a 32-pin 5 mm × 5 mm UFQFPN package. The verified distributor listing identifies the device as an STM8L EnergyLite MCU with 32 KB Flash, while the manufacturer positions the STM8L151K6 family as part of the STM8L ultra-low-power 8-bit portfolio. It combines an 8-bit CPU with embedded analog and serial peripherals for compact control, sensing, communications, and low-duty-cycle embedded products. An ultra-low-power microcontroller is an embedded semiconductor designed to complete control tasks while minimizing energy consumption between active processing intervals. In the system hierarchy, the STM8L151K6U3 belongs to the microcontroller class, within embedded processors and power-conscious embedded control. Its combination of Flash program memory, data EEPROM, real-time-clock capability, LCD support, timers, USART, I2C, SPI, ADC, DAC, and comparators allows one device to consolidate several discrete functions on a small PCB. Verified feature information identifies up to 32 KB Flash, 1 KB data EEPROM, RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, and comparators. The distributor record also confirms 8-bit operation, a 16 MHz maximum frequency, and 32 KB organized as 32K × 8. These resources suit firmware that includes user-interface updates, sensor acquisition, local data logging, communication, timekeeping, and low-power state management without requiring a separate real-time clock or interface-conversion circuitry. The STM8L151K6U3 belongs to STMicroelectronics' STM8L low-power architecture rather than the ARM-based STM32 families. That distinction matters when replacing it: software, instruction set, peripheral implementation, and toolchain assumptions may differ even when another microcontroller offers similar nominal features. ST's product page identifies the medium-density STM8L151x4/6 devices, allowing engineers to distinguish the target from lower-density STM8L151x2/3 parts when planning a redesign. Typical applications include battery-powered utility meters, compact environmental sensors, industrial control modules, wearable accessories, instrument panels, and connected sensor nodes. The target's integrated ADC and comparators suit local analog monitoring, while USART, I2C, and SPI support external sensors, transceivers, displays, and data loggers. The RTC is useful for time-stamped measurements and scheduled low-power operation, although exact current, voltage, timer, ADC, and package-registration details must be taken from the manufacturer documentation. PCB implementation should follow the exact 32-pin UFQFPN land pattern and exposed-pad requirements in the manufacturer package information. Place decoupling capacitors close to supply pins, route sensitive analog inputs away from fast-switching nodes, and confirm thermal-pad soldering against the assembly process. Firmware and peripheral configuration should also use STMicroelectronics' STM8 toolchain rather than assuming STM32 compatibility. This product record combines verified manufacturer positioning, distributor specifications, sourcing links, interface coverage, and replacement-risk guidance. It is intended to accelerate engineering evaluation while clearly separating confirmed facts from parameters that still require confirmation from the official datasheet.

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STM8L151K6U6 - 16MHz 32KB 8-Bit MCU | STMicroelectronics
STM8L151K6U6

STM8L151K6U6 - 16MHz 32KB 8-Bit MCU | STMicroelectronics

The STMicroelectronics STM8L151K6U6 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller operating up to 16 MHz, with 32 KB of Flash memory and a 32-pin UFQFPN package measuring 5 x 5 mm. The device combines a CISC processor core, LCD support, real-time-clock capability and 1 KB of data EEPROM in an energy-conscious platform for embedded control. An ultra-low-power microcontroller is an integrated semiconductor that combines a processor core, memory and peripherals while prioritizing low current consumption during active operation and sleep. The STM8L family belongs to the STM8 8-bit microcontroller hierarchy and addresses battery-powered instruments, compact sensors and low-power industrial products where energy efficiency and a compact footprint are more important than high arithmetic throughput. Verified listing data identifies up to 32 KB of programmable Flash, 16 MHz maximum clock speed, 41 I/O ports, LCD support and a real-time clock. The STM8L151K6U6 also includes 1 KB of data EEPROM, allowing calibration values, configuration data and operating counters to be retained without consuming Flash. Its 1.8 V to 3.6 V supply range supports both 2 V and 3.3 V system architectures. The STM8L architecture provides a direct CISC execution model and a broad set of embedded peripherals rather than an Arm Cortex application processor. Verified distributor information identifies the MCU as an 8-bit device with 16 MHz performance and 32 KB of Flash. The K6U6 designation corresponds to a 32-pin UFQFPN configuration, with an exposed thermal and electrical connection area supporting heat transfer and PCB integration. Typical uses include low-energy sensor nodes, compact LCD instruments, portable measurement products, battery-operated controls and embedded industrial modules. The LCD interface and real-time clock are particularly useful in metering and user-interface designs, while the 41 I/O ports provide connections for sensors, switches, displays and communication peripherals in a small 5 x 5 mm package. Designers should review the complete pin assignment and exposed-pad requirements in the manufacturer datasheet before layout because the supplied verification data does not publish a complete numbered pin table. Decoupling, exposed-pad grounding, programming access and low-power configuration also require board-level validation against the official device documentation. This page consolidates verified manufacturer and distributor information, transparent sourcing limitations, package guidance and engineering-focused comparisons for the STM8L151K6U6. It distinguishes directly comparable STM8L variants from devices that require package or firmware changes and helps procurement teams evaluate the exact 32 KB, 32-pin ordering code.

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STM8L151R6T6 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics
STM8L151R6T6

STM8L151R6T6 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L151R6T6 is an 8-bit ultra-low-power microcontroller with a 16 MHz clock, 32 KB of Flash program memory, and a 64-pin LQFP package measuring 10 mm by 10 mm. It is designed for compact embedded systems that require low power consumption, efficient peripheral integration, and a broad supply-voltage range of 1.8 V to 3.6 V. An ultra-low-power microcontroller is a semiconductor device optimized to complete sensing, control, communication, and monitoring tasks while minimizing energy use during both active and standby operation. Within the device hierarchy, the STM8L151R6T6 belongs to the STM8L family, combines an 8-bit STM8 CPU core with embedded Flash memory, and provides a dedicated platform for low-power embedded control rather than high-performance computing. The device provides 32 KB of Flash memory, 16 MHz maximum clock speed, and 41 I/O ports according to its product data. Its operating voltage extends from 1.8 V to 3.6 V, allowing use in battery-powered products, portable instruments, industrial controls, and consumer equipment. The LCD-related designation identifies its suitability for applications involving display interfaces, while its 64-LQFP package exposes a substantial number of pins for external sensors, actuators, communication interfaces, and mixed-signal connections. Because this is an 8-bit MCU, its computational resources are best suited to control logic, state machines, data acquisition, display handling, and communication rather than intensive graphics, high-bandwidth signal processing, or large operating systems. The 16 MHz clock supports deterministic peripheral timing and responsive application code, while Flash memory provides enough space for embedded firmware and application routines. Typical applications include low-power sensor nodes, compact industrial monitoring equipment, battery-operated meters, portable measurement products, display-equipped control panels, and compact consumer appliances. The combination of low-power operation, 32 KB Flash memory, and 41 I/O ports supports designs that need flexible external connectivity without requiring a large microcontroller package. Board design should follow the manufacturer pinout and pin-description tables exactly. Pay particular attention to supply decoupling, unused-pin treatment, programming access, oscillator requirements, and exposed-pad or thermal-layout guidance applicable to the selected LQFP variant. Confirm the complete electrical limits and peripheral configuration in the manufacturer datasheet before releasing a production schematic. This page organizes the verified electrical identity, lifecycle status, package data, and source links for STM8L151R6T6 while adding application-oriented design guidance, sourcing questions, and same-family replacement analysis. These engineering aids help buyers distinguish configuration and temperature-range changes before approving a substitution.

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STM8L151R8T3 - 16MHz 64KB MCU | STMicroelectronics
STM8L151R8T3

STM8L151R8T3 - 16MHz 64KB MCU | STMicroelectronics

The STMicroelectronics STM8L151R8T3 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller with a 16 MHz CPU, 64 KB of embedded Flash memory, integrated EEPROM, and a 64-pin LQFP package measuring 10 mm by 10 mm. It operates from 1.8 V to 3.6 V and combines low-power sensing and control capabilities with a 12-bit ADC and up to 54 I/O ports. An ultra-low-power microcontroller is an integrated circuit optimized to minimize energy consumption while executing embedded control, measurement, communications, and interface tasks. The STM8L15xx family belongs to the STM8L EnergyLite architecture and is designed for battery-operated sensors, compact industrial controls, portable instruments, and connected products that must retain processing capability while spending little time in active or standby modes. The STM8L151R8T3 combines a maximum 16 MHz enhanced STM8 CPU core with 64 KB Flash and 4 KB EEPROM. Its 12-bit ADC supports embedded analog measurement, while the high I/O count allows multiple digital inputs, outputs, communications interfaces, and external peripheral connections. The 1.8 V to 3.6 V operating range accommodates low-voltage sensor, metering, industrial, and consumer equipment. The LQFP-64 package provides 54 I/O positions and a 10 mm by 10 mm body, making it practical for prototype boards and multiline industrial-control products. Its performance profile is suited to real-time control loops that do not require a 32-bit Cortex-M core but benefit from fast 8-bit execution, embedded nonvolatile data storage, and a broad set of GPIO resources. Integrated EEPROM can retain configuration and calibration values without occupying external Flash space. Typical uses include low-energy environmental monitoring, compact motor and actuator controllers, industrial sensor nodes, portable measurement instruments, access-control equipment, and low-power data-acquisition systems. In each case, the device can combine analog sensing and control logic in a single package while supporting multiple digital interfaces and serial communications. PCB design should preserve clean supply distribution, short analog-signal paths, and stable grounding around the ADC inputs. Place decoupling capacitors close to the supply pins, route high-current or switching signals away from sensitive analog traces, and consult the STM8L151R8 pin and package documentation before assigning every LQFP position. Verify the required clock, reset, programming, and peripheral functions against the device pin table. This product page combines manufacturer and distributor specifications, practical application guidance, verified lifecycle information, and engineering-focused selection criteria. It also distinguishes exact ordering information from broader series-level claims so that engineers can assess the STM8L151R8T3 for low-power embedded designs without relying on a simple catalog summary.

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STM8L151R8T6 - 16MHz 8-Bit 64KB Flash MCU | STMicroelectronics
STM8L151R8T6

STM8L151R8T6 - 16MHz 8-Bit 64KB Flash MCU | STMicroelectronics

The STMicroelectronics STM8L151R8T6 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller with a 16 MHz maximum core frequency, 64 KB of Flash program memory and 4 KB of RAM, housed in a 64-LQFP 10 x 10 mm package. It operates across a 1.8 V, 2.5 V or 3.3 V supply range and is designed for battery-operated, sensor-driven and connected embedded products. STM8L microcontrollers belong to the 8-bit microcontroller and energy-management MCU hierarchy, combining an enhanced STM8 CPU core with low-power operating modes, LCD-oriented peripherals and integrated analog resources. Their role in a system is to execute local control and measurement functions while keeping current consumption low enough for long operating life from a compact energy source. Key characteristics include 64 KB of embedded Flash, 4 KB of SRAM, a maximum clock frequency of 16 MHz and a 64-LQFP package. The STM8L151R8 family is positioned for applications requiring a balance of processing capability, low standby consumption and compact package size. The provided manufacturer and distributor references identify the device as part of the STM8L151x6/8 ultra-low-power family, which also includes STM8L152 and STM8L162 variants. The STM8L151R8T6 is suitable for energy-harvesting meters, industrial sensor nodes, wearable accessories, low-power control panels and small portable instruments. Because the device supports low-voltage operation and an LCD-oriented feature set, it can reduce the need for external components in display-driven designs. Its 64-LQFP outline also provides more I/O than the smaller STM8L151K6 package for designs requiring multiple external connections. When designing around this MCU, verify the exact operating voltage, pin multiplexing, clock configuration and low-power mode entry procedure against the STM8L151x6/8 datasheet. The STM8L151R8T6 is supplied in a tray-oriented ordering code, while STM8L151R8T6TR is the tape-and-reel ordering variant shown in distributor listings. The distinction between ordering formats is commercial rather than a change in the underlying device. This page combines verified manufacturer and distributor information with practical package, sourcing and design guidance. It also highlights the limits of the available data: detailed pin names, electrical timing curves, lifecycle declarations and volume pricing must be confirmed from the current manufacturer datasheet and authorized distributor inventory before a production release.

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STM8L152C4T3 - 16MHz 16KB Flash Ultra-Low-Power MCU | STMicroelectronics
STM8L152C4T3

STM8L152C4T3 - 16MHz 16KB Flash Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L152C4T3 is an ultra-low-power 8-bit microcontroller with a 16 MHz clock, 16 KB of Flash program memory, and a 48-pin LQFP package measuring 7 x 7 mm. It operates from a 1.8 V to 3.6 V supply and provides 41 I/O ports, making it suitable for compact, low-power embedded systems that require substantial peripheral integration. An ultra-low-power microcontroller is an energy-efficient integrated circuit designed to conserve battery energy by combining low-leakage operation, low-power operating modes, and selective peripheral activation. The STM8L family belongs to the broader hierarchy of 8-bit MCU, microcontroller, embedded processor, and semiconductor products used in sensing, metering, control, communications, and human-interface applications. The STM8L152C4T3 combines 16 KB of Flash memory with an integrated real-time clock and LCD controller. Its documented peripheral set also includes timers, USART, I2C, SPI, ADC, DAC, and comparators. These resources allow a designer to implement local sensing, display control, data acquisition, serial communication, and actuator drive functions without relying on several separate discrete devices. Its 16 MHz operating clock provides dedicated processing performance for low-complexity control tasks, while the 41 available I/O ports support compact user interfaces and mixed analog and digital connections. The 1.8 V to 3.6 V operating range accommodates low-voltage battery-powered designs as well as 3.3 V industrial or embedded systems. Component selection should include checking the complete pin description and electrical limits in the manufacturer pinout and datasheet. Typical uses include battery-powered environmental sensors, compact energy meters, industrial control modules, instrument-panel controllers, low-power data loggers, and connected sensing nodes. The LCD controller and real-time clock are especially useful when the design requires a local display and timekeeping without continuously powering a larger processor or display subsystem. PCB design should preserve the required decoupling arrangement, connect unused pins according to the manufacturer guidance, and route high-impedance or sensitive analog signals away from fast-switching nodes. Low-power designs must also account for board leakage, pull-up resistance, and the operating mode selected by firmware, because external circuitry can dominate the final sleep-mode current. This page consolidates the exact orderable MPN, electrical attributes, package information, application guidance, and qualified same-family alternatives into one engineering reference. It also identifies the documentation needed to verify pin assignment, peripheral multiplexing, firmware support, and lifecycle status before a design is released to production.

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STM8L152C4U6 - 16MHz, 16KB Low-Power MCU | STMicroelectronics
STM8L152C4U6

STM8L152C4U6 - 16MHz, 16KB Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L152C4U6 is an ultra-low-power 8-bit microcontroller rated at 16MHz, with 16KB of embedded Flash memory and a 48-pin UFQFPN package measuring 7 x 7mm. It belongs to the STM8L151x4/6 and STM8L152x4/6 medium-density device group, combining an 8-bit architecture with LCD, RTC, communication, analog, and timing resources for compact embedded systems. The device is positioned for applications that require low-power operation, broad peripheral integration, and a space-efficient surface-mount footprint. An ultra-low-power microcontroller is an embedded processing device designed to maintain useful operation while minimizing energy consumption during active and sleep states. The STM8L family sits within the hierarchy of low-power 8-bit microcontrollers, embedded controllers, and general-purpose semiconductors. This positioning makes the STM8L152C4U6 suitable for metering, sensing, access-control, industrial control, consumer accessories, and connected low-power equipment in which battery life, display support, and mixed analog/digital functions matter. The manufacturer identifies the STM8L152C4U6 as an 8-bit MCU with 16KB Flash, 16MHz operation, and a 48-UFQFPN package. Its documented feature set includes an RTC, 1KB data EEPROM, LCD support, timers, USART, I2C, SPI, ADC, DAC, and comparators. These resources can reduce external component count by consolidating communications, display control, data acquisition, and low-level timing into one device. The 16KB Flash configuration is suitable for compact control firmware that does not require the storage capacity of the larger members in the same family. The STM8L architecture integrates an 8-bit CPU, memory, and multiple peripheral blocks on a single die. Its communication peripherals support serial links to sensors, transceivers, displays, and other embedded controllers, while the ADC, DAC, and comparators extend the device beyond basic digital logic control. The RTC provides timekeeping for data logging and scheduled operations, and the LCD interface is particularly useful in segmented-display products. Pin-count and exact peripheral availability should be checked against the manufacturer pin description before assigning board functions. Typical uses include low-energy sensor nodes, compact industrial controllers, portable measurement equipment, LCD-driven utility meters, access terminals, and battery-assisted appliances. In a sensor-node design, the MCU can gather analog measurements, filter them digitally, timestamp them through the RTC, and transmit results through I2C, SPI, or USART. In a display-oriented product, the LCD interface can reduce parallel-display driver requirements while the timers and comparators support background measurement or threshold functions. PCB planning should reserve the 48-pin UFQFPN land pattern, confirm exposed-pad requirements, and follow the manufacturer recommendations for decoupling and signal routing. Place input and output capacitors close to their associated supply pins, provide a stable clock implementation, and keep analog and communication routes away from noisy switching nodes. Firmware and peripheral allocation should be checked against the target device's 16KB Flash limit before enabling multiple complex functions. This product page consolidates the manufacturer's core device identification, family positioning, package information, peripheral capabilities, pinout caveat, drop-in family comparisons, and practical PCB guidance into one engineering-focused reference. It also distinguishes confirmed device facts from parameters that require confirmation in the manufacturer datasheet, helping engineers evaluate the STM8L152C4U6 before schematic capture and PCB layout.

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STM8L152C6T6 - 8-bit Ultra-Low-Power MCU 32KB Flash | STMicroelectronics
STM8L152C6T6

STM8L152C6T6 - 8-bit Ultra-Low-Power MCU 32KB Flash | STMicroelectronics

The STM8L152C6T6 is an 8-bit ultra-low-power microcontroller from STMicroelectronics' STM8L EnergyLite family, featuring a 16 MHz STM8 core, 32 KB of Flash memory, 2 KB of RAM, and 1 KB of data EEPROM. It is housed in a 48-pin LQFP (7x7 mm) package and operates over a supply voltage range of 1.8V to 3.6V, with a temperature range of -40°C to 125°C. This device integrates a rich set of peripherals including an LCD driver, real-time clock (RTC), timers, USART, I2C, SPI, 12-bit ADC, 12-bit DAC, and comparators, making it ideal for battery-powered and energy-sensitive applications. An 8-bit microcontroller is a single-chip computer with an 8-bit data bus, executing instructions on 8-bit words. It typically integrates a CPU, memory (Flash, RAM, EEPROM), and peripherals (timers, communication interfaces, ADC) on a single die. In the system hierarchy, an 8-bit MCU sits below 16-bit and 32-bit MCUs in processing power but excels in ultra-low-power operation and cost-effectiveness for simple control tasks. The STM8L152C6T6 belongs to the STM8L ultra-low-power family, which is designed for applications where energy efficiency is paramount, such as portable medical devices, smart meters, and wireless sensor nodes. Key features of the STM8L152C6T6 include its ultra-low-power modes (Halt, Active-Halt, Wait) with current consumption as low as 0.35 µA in Halt mode, a 16 MHz CPU clock, and a 12-bit ADC with up to 28 channels. The integrated LCD driver supports up to 4x28 segments, enabling direct connection to segment LCDs without external drivers. The device also includes a true data EEPROM with up to 1 KB, allowing non-volatile data storage without external memory. The RTC provides accurate timekeeping with a separate clock domain, and the multiple communication interfaces (USART, I2C, SPI) facilitate connectivity with sensors and other peripherals. From a technical architecture perspective, the STM8L152C6T6 is built on a Harvard architecture with a 3-stage pipeline, achieving up to 16 MIPS at 16 MHz. The core includes an 8-bit accumulator, 16-bit index registers, and a 16-bit stack pointer, with a rich instruction set optimized for C and assembly programming. The device features a flexible clock system with multiple internal and external oscillator options, including a low-speed internal RC oscillator for low-power operation. The power management unit provides multiple low-power modes and a programmable voltage detector, enabling fine-grained control over energy consumption. Typical applications for the STM8L152C6T6 include smart meters (electricity, water, gas), portable medical devices (glucose meters, pulse oximeters), remote controls, and battery-powered sensor nodes. Its ultra-low-power consumption and integrated LCD driver make it particularly well-suited for devices that require long battery life and direct LCD display. The device is also used in industrial control and home automation systems where reliability and low power are critical. When designing with the STM8L152C6T6, engineers should pay attention to the power supply decoupling, placing a 100 nF capacitor close to each VDD pin and a 1 µF capacitor on the main supply. The VDDA pin should be connected to VDD through a ferrite bead to reduce noise for the ADC. Additionally, the LCD driver requires a charge pump capacitor (typically 100 nF) between the VLCD pin and ground, and the RTC requires a 32.768 kHz crystal for accurate timekeeping. Proper layout of the crystal and decoupling capacitors is essential for reliable operation.

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