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STM8L101F2P6 - 16MHz 4KB Flash Ultra-Low-Power MCU | STMicroelectronics
STM8L101F2P6

STM8L101F2P6 - 16MHz 4KB Flash Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L101F2P6 is an ultra-low-power 8-bit microcontroller with a 16 MHz enhanced STM8 CPU core, 4 KB of Flash program memory, 18 I/O ports, and a 20-pin TSSOP package. It operates from 1.65 V to 3.6 V, reaches up to 16 MIPS, and integrates USART, SPI, I2C, comparators, and multifunction timers for compact sensing and control systems. An ultra-low-power microcontroller is an embedded controller designed to minimize energy consumption while retaining real-time processing and communication functions. The STM8L101 belongs to the STM8L EnergyLite family, which combines a low-voltage 8-bit architecture with power-saving operating modes. Its hierarchy is STM8L microcontroller, 8-bit MCU, embedded microcontroller, and semiconductor, positioning it between simple logic controllers and more capable 32-bit embedded processors. Key features include 16 MHz maximum clock speed, 4 KB of Flash memory, and a 1.65 V to 3.6 V supply range. Low-current operation includes 0.3 µA in Halt mode and 0.8 µA in Active-halt mode. The device provides 18 I/O ports and integrated USART, SPI, and I2C interfaces, reducing the need for external serial-interface components in compact industrial, sensing, and consumer-control products. The enhanced STM8 CPU core provides increased processing performance of up to 16 MIPS at 16 MHz. Multifunction timers support periodic timing, input capture, output compare, and PWM-oriented control tasks, while integrated comparators can support threshold detection and low-component-count signal conditioning. This combination of general-purpose serial connectivity and low-power peripherals makes the MCU suitable for systems that must process small amounts of local data without continuously running at maximum clock speed. Typical applications include low-power sensor nodes, compact industrial monitoring devices, battery-powered controls, simple motor or actuator controllers, connected sensing equipment, and cost-sensitive embedded products. The 20-TSSOP package provides a conventional surface-mount footprint for automated assembly, while the 3 V-class operating range accommodates energy-efficient sensor, communications, and control subsystems. Designers should verify the complete pin assignment and peripheral configuration against the manufacturer datasheet before layout release. The 1.65 V to 3.6 V range also requires attention to the voltage thresholds of connected sensors and serial peripherals, since an MCU operating near the lower supply limit may not support every external device's input level. Decoupling and low-power-mode transitions should be validated on the finished board. This product data consolidates distributor specifications, package details, low-power characteristics, interface coverage, application guidance, and qualified comparison candidates into an engineering-focused reference. It also distinguishes verified drop-in candidates from broader functional alternatives, helping designers assess sourcing options without overlooking firmware, memory, and pin-compatibility validation.

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STM8L101F3P3 - 8-Bit 16MHz Ultra-Low-Power MCU | STMicroelectronics
STM8L101F3P3

STM8L101F3P3 - 8-Bit 16MHz Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L101F3P3 is an 8-bit ultra-low-power STM8L EnergyLite microcontroller with up to 16 MHz processing speed, 8 KB of Flash program memory, and a 20-pin TSSOP package. It operates across a 1.65 V to 3.6 V supply range and combines an enhanced STM8 CPU core with low-power design features for embedded control systems. A microcontroller is a programmable control component that integrates a processor, memory, digital I/O, timers, communications peripherals, and supporting logic on one semiconductor device. The STM8L101F3P3 belongs to the STM8L low-power 8-bit family, a compact MCU platform intended for cost-sensitive, low-power, low-complexity applications. Its CISC-style STM8 architecture supports efficient code density, while its 24-bit linear addressing space provides access to the device memory map. Key features of the STM8L101F3P3 include an enhanced STM8 CPU core reaching up to 16 MIPS at 16 MHz, 8 KB of Flash memory, multifunction timers, comparators, USART, SPI, and I2C interfaces, and up to 18 I/O ports. The 1.65 V to 3.6 V operating range supports low-voltage battery-powered systems as well as standard embedded control rails. The 20-TSSOP package provides a compact surface-mount footprint for space-constrained designs. The STM8L101F3P3 is suitable for low-power sensing, small industrial control nodes, portable measurement equipment, consumer accessories, and connected embedded products. Its low-power family positioning makes it useful where average current consumption and energy efficiency are important, especially in devices that spend substantial time in sleep or low-activity states. Designers should confirm the exact clock, memory, peripheral, and electrical limits against the manufacturer datasheet before finalizing the design. Decoupling capacitors should be placed close to the supply pins, unused inputs should be held at defined levels, and low-power wake-up behavior should be validated with the intended firmware. Toolchain and peripheral configuration must also be checked against the STM8 family development environment. This page combines verified distributor availability, manufacturer technical information, package details, and practical selection guidance to support engineers evaluating the STM8L101F3P3 for a new low-power embedded design.

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STM8L101F3P6 - 8-bit Ultra-Low-Power MCU, 8KB Flash | STMicroelectronics
STM8L101F3P6

STM8L101F3P6 - 8-bit Ultra-Low-Power MCU, 8KB Flash | STMicroelectronics

The STM8L101F3P6 is an 8-bit ultra-low-power microcontroller from STMicroelectronics, part of the STM8L EnergyLite family. It features an enhanced STM8 CPU core running at up to 16 MHz, delivering up to 16 MIPS while maintaining the advantages of a CISC architecture with improved code density and a 24-bit linear addressing space. The device integrates 8 KB of Flash memory, 2 KB of RAM, and 1.5 KB of data EEPROM, making it suitable for a wide range of battery-operated and energy-efficient applications. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, designed for embedded control applications. It integrates a processor core, memory (Flash, RAM, EEPROM), and peripherals (timers, communication interfaces, I/O ports) on a single integrated circuit. In the system hierarchy, an MCU is a type of embedded processor, which falls under the broader category of integrated circuits (ICs) and semiconductors. The STM8L101F3P6 is specifically optimized for ultra-low-power operation, making it a key component in the power management and energy-harvesting domain. Key features of the STM8L101F3P6 include a supply voltage range of 1.8V to 3.6V, ultra-low power consumption with Halt mode at 0.3 µA and Active-halt mode at 0.8 µA, and a rich set of peripherals including multifunction timers, comparators, USART, SPI, and I2C interfaces. The device is available in a 20-pin TSSOP package (0.173", 4.40mm width), which is ideal for space-constrained designs. It operates over a temperature range of -40°C to +85°C, ensuring reliability in industrial and consumer environments. From a technical depth perspective, the STM8L101F3P6 leverages ST's proprietary STM8 core, which is designed for low-power operation without compromising performance. The architecture includes a 24-bit linear addressing space, enabling efficient code execution and data handling. The device also features a flexible clock system with internal and external oscillators, allowing designers to optimize power consumption based on application requirements. The integrated data EEPROM provides non-volatile storage for calibration data or configuration parameters, reducing the need for external memory components. Typical applications for the STM8L101F3P6 include battery-powered devices such as portable medical monitors, smart sensors, and wearable electronics. Its ultra-low-power modes make it ideal for energy-harvesting systems and IoT edge nodes where power efficiency is critical. The device's communication interfaces (USART, SPI, I2C) enable seamless integration with sensors, displays, and wireless modules, making it a versatile choice for embedded system designers. When designing with the STM8L101F3P6, it is essential to consider the power supply decoupling and PCB layout to minimize noise and ensure stable operation. The device supports multiple low-power modes, and designers should leverage these modes to extend battery life in portable applications. Additionally, the STM8L101F3P6 is supported by ST's comprehensive development ecosystem, including the STM8CubeMX configuration tool and various IDEs, which accelerates firmware development and reduces time-to-market.

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STM8L101K3T6 - 8-Bit 16MHz 8KB MCU | STMicroelectronics
STM8L101K3T6

STM8L101K3T6 - 8-Bit 16MHz 8KB MCU | STMicroelectronics

The STMicroelectronics STM8L101K3T6 is an 8-bit STM8L EnergyLite ultralow-power microcontroller operating at up to 16 MHz, with 8 KB of Flash memory and a 32-LQFP package measuring 7 x 7 mm. The device is designed for compact embedded systems that need efficient control, low-power operation, and integrated communication peripherals. The STM8L101 belongs to the STM8L family of 8-bit microcontrollers, a product class positioned between simple fixed-function controllers and more complex application processors. Its EnergyLite architecture targets low-power embedded control, while the STM8L101 device family combines Flash memory, timers, comparators, USART, SPI, and I2C in a compact package. Verified distributor information identifies a 1.65 V to 3.6 V supply range, 18 I/O ports, 16 MHz clock capability, 8 KB Flash, and a 32-pin LQFP package. Other search results describe the device as an 8-bit ultralow-power MCU with multifunction timers, comparators, USART, SPI, and I2C. Available snippets also identify 0.3 uA Halt current and 0.8 uA Active-halt current for one variant of the STM8L family; applicability to this exact orderable MPN should be confirmed against the manufacturer datasheet. Typical uses include low-power sensor nodes, compact industrial controllers, battery-operated instruments, communication modules, and low-cost embedded products where an 8-bit CPU, serial interfaces, and modest Flash capacity are sufficient. The device is not an STM32 Cortex-M part, so software, peripheral compatibility, and boot or debugging arrangements should be evaluated explicitly during migration. A key design consideration is the low-voltage supply range. The power rail, decoupling, input tolerance, and peripheral voltage assumptions must be checked against the exact datasheet before layout or firmware release. For PCB design, preserve the 32-LQFP land pattern and route the supply and ground pins according to the manufacturer recommendations. For firmware, confirm timer, USART, SPI, and I2C instance availability against the exact STM8L101K3T6 pin and peripheral configuration. This page consolidates verified distributor specifications, source links, application guidance, and conservative replacement information. It does not infer unprovided electrical limits, pin functions, lifecycle guarantees, pricing, or package details that are absent from the supplied sources.

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STM8L151C2T6 - 16MHz 8-Bit 4KB MCU | STMicroelectronics
STM8L151C2T6

STM8L151C2T6 - 16MHz 8-Bit 4KB MCU | STMicroelectronics

The STMicroelectronics STM8L151C2T6 is an 8-bit ultra-low-power microcontroller with a 16 MHz enhanced STM8 CPU core, 4 KB of Flash program memory, 1 KB of RAM, a 12-bit ADC, and a 48-LQFP 7 x 7 mm package. According to the STMicroelectronics product page, the enhanced core can execute up to 16 MIPS at 16 MHz, making the device suitable for compact control and sensing systems that require low power consumption and broad peripheral integration. An ultra-low-power microcontroller is a semiconductor controller designed to minimize energy use while monitoring inputs, processing data, and controlling outputs. The STM8L151 belongs to the STM8L family, which combines an 8-bit core, low-power operating modes, analog sensing resources, and serial communication peripherals in a compact embedded-control device. This hierarchy places it between general-purpose processing and dedicated sensing-and-control ICs. Verified features include operation from 1.8 V to 3.6 V, a 16 MHz maximum clock, 4 KB Flash, 1 KB RAM, a 12-bit ADC, and an industrial temperature range from -40 °C to +85 °C. The low-density memory profile is appropriate for compact products that manage sensors, actuators, user interfaces, or communication nodes without requiring a high-performance application processor. The enhanced STM8 CPU provides up to 16 MIPS at 16 MHz, balancing processing throughput against the device's low-power positioning. Its integrated analog and digital resources can reduce the number of external components in a design, although the verified web data does not enumerate every peripheral, GPIO count, timer, or communication block. Those details must be confirmed in the manufacturer datasheet before final schematic or firmware decisions. Typical uses include industrial sensor nodes, compact environmental monitors, low-power control panels, battery-powered measurement equipment, motor-control interfaces, and connected industrial modules. The 48-LQFP package provides enough pin access for mixed analog and digital designs while remaining manageable for automated PCB assembly. When designing around the STM8L151C2T6, verify the selected operating frequency against the available supply voltage and verify the ADC, timer, and communications requirements against the datasheet. Place decoupling capacitors close to the supply pins and reserve adequate PCB area for thermal dissipation and signal routing. This page consolidates verified manufacturer and distributor information, package constraints, sourcing details, and honest replacement guidance. It also distinguishes verified drop-in candidates from related devices whose memory or architecture makes them unsuitable as direct substitutes, helping engineers compare alternatives without assuming that a shared package guarantees compatibility.

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STM8L151C3T3 - 8-Bit 16MHz 8KB MCU | STMicroelectronics | IoT
STM8L151C3T3

STM8L151C3T3 - 8-Bit 16MHz 8KB MCU | STMicroelectronics | IoT

The STMicroelectronics STM8L151C3T3 is an 8-bit STM8L EnergyLite microcontroller rated for operation up to 16 MHz, with 8 KB of Flash program memory and a 48-pin LQFP package measuring 7 x 7 mm. The device operates from a 1.8 V to 3.6 V supply, provides 41 I/O ports, and belongs to STMicroelectronics' low-density STM8L151x2/3 ultra-low-power family. Its combination of CISC processing, compact packaging, and low-voltage operation makes it suitable for embedded control, sensor, and connected-device designs. An ultra-low-power microcontroller is an integrated circuit designed to execute embedded control functions while minimizing energy consumption during active operation, idle periods, and standby modes. The STM8L151 architecture sits within the STM8L family, combining an 8-bit CISC core, digital peripherals, analog interfaces, and low-power management in one package. This integration allows compact products to consolidate sensing, control, communications, and local processing without requiring a separate discrete processor. The STM8L151C3T3 supports operation up to 16 MHz and provides up to 16 MIPS according to the verified STM8L151x2/3 family description. Its 8 KB Flash memory is suitable for compact firmware rather than resource-intensive applications. A 1.8 V to 3.6 V operating range supports low-voltage systems, while 41 I/O pins provide substantial connectivity for sensors, indicators, communication interfaces, and control signals in a 48-LQFP footprint. The device belongs to the STM8L low-density platform, whose enhanced STM8 CPU core is designed to retain CISC code density while using a 24-bit linear addressing space. This architecture is useful for cost-sensitive embedded systems where straightforward peripheral access and compact code are important. Because the verified data does not specify the exact peripheral list, RAM capacity, timer configuration, and conversion performance, those details should be confirmed against the official STM8L151C3 datasheet before final design release. Typical applications include connected environmental sensors, compact industrial controllers, low-power monitoring equipment, and small appliance control modules. The 16 MHz processing capability accommodates time-based control and moderate protocol handling, while the 41 available I/O pins simplify connection to external sensors and actuators. For designs requiring low standby consumption, the STM8L151's low-power architecture is preferable to a general-purpose MCU that remains clocked continuously. Designers should preserve adequate input-voltage headroom across temperature and production tolerances because the verified operating range extends from 1.8 V to 3.6 V. PCB layout must also accommodate the 48-pin LQFP lead pitch and provide appropriate decoupling at the supply pins. Firmware should use the manufacturer-supported clock, peripheral, and low-power configuration rather than assuming functions or pin assignments that are not documented in the available verified data. This product record combines verified distributor specifications, lifecycle information, package details, and sourcing references with explicit engineering guidance. It also distinguishes confirmed facts from unavailable parameters, helping engineers evaluate the STM8L151C3T3 for low-voltage embedded-control designs without relying on unverified assumptions.

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STM8L151C4T3 - 8-Bit 16MHz 16KB MCU | STMicroelectronics
STM8L151C4T3

STM8L151C4T3 - 8-Bit 16MHz 16KB MCU | STMicroelectronics

The STMicroelectronics STM8L151C4T3 is an ultra-low-power 8-bit STM8L microcontroller with a 16 MHz clock, 16 KB of Flash memory, and a 48-pin LQFP package. It operates from 1.8 V to 3.6 V and provides 41 I/O ports. The compact-memory profile combines low-power sensing and control capabilities with integrated MCU resources for embedded products. An ultra-low-power MCU is a microcontroller designed to minimize energy use while retaining enough processing and peripheral capability for sensing, monitoring, control, and user-interface tasks. The STM8L family belongs to the hierarchy microcontroller, embedded processor, semiconductor, and embedded system component. Its low-power positioning makes it relevant to battery-operated equipment, environmental monitors, compact controls, and other systems where energy availability constrains design choices. The supplied product data identifies 16 KB of Flash memory, a maximum clock frequency of 16 MHz, a 1.8 V to 3.6 V supply range, and 41 I/O ports. The STM8L151C4 family description also identifies LCD, timers, real-time-clock, ADC, DMA, EEPROM, and low-power capabilities at the family level. Because the exact target-device peripheral mapping and electrical limits were not included in the verified excerpts, individual feature details should be confirmed in the manufacturer documentation before schematic or firmware decisions. The device is identified as part of the STM8 EnergyLine ultra-low-power portfolio and is specifically described as an STM8L151 8-bit MCU with an ADC and DMA. Its 48-LQFP package provides a conventional leaded footprint that can simplify assembly and inspection compared with a very fine-pitch package, although it occupies more PCB area than smaller packages. The listed operating voltage supports both 2.5 V and 3.3 V system concepts found in the comparison search results. Typical design targets include low-power sensing nodes, compact industrial controls, battery-powered monitors, LCD-equipped user interfaces, and embedded measurement systems. The MCU can serve as the central controller for acquiring sensor data, driving a display, sequencing low-power modes, and communicating through the peripherals supported by the selected STM8L151C4 variant. Firmware and hardware decisions should be checked against the complete manufacturer datasheet and device-specific pinout. Design with the 1.8 V to 3.6 V supply range as a hard boundary. Confirm decoupling, clock configuration, debug access, unused-pin treatment, and the exact LQFP land pattern from the official documentation. For battery systems, calculate average current over the complete measurement-and-sleep cycle rather than using only active-mode current. This product page consolidates verified distributor identity, package, memory, voltage, speed, and lifecycle information with practical design guidance. It also separates confirmed facts from parameters requiring verification, helping engineers compare sourcing options without inventing missing electrical or package details.

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STM8L151C4T6 - 8-Bit 16MHz 16KB MCU | STMicroelectronics
STM8L151C4T6

STM8L151C4T6 - 8-Bit 16MHz 16KB MCU | STMicroelectronics

The STMicroelectronics STM8L151C4T6 is an 8-bit ultra-low-power STM8L EnergyLite microcontroller with a 16 MHz clock, 16 KB of Flash, and a 48-LQFP package measuring 7 x 7 mm. The device belongs to the medium-density STM8L151x4/6 family and is designed for embedded systems requiring low power consumption, conventional serial interfaces, timers, and mixed-signal control functions. An ultra-low-power microcontroller is an embedded controller optimized to minimize current consumption during active operation, sleep, and standby states. The STM8L family is positioned below general-purpose processors for compact control tasks such as sensor management, actuator control, communications, energy metering, and battery-powered equipment. This MCU combines an 8-bit STM8 architecture with integrated peripherals to reduce the need for discrete support components. Verified source information identifies 16 KB of Flash, an operating clock of 16 MHz, and a 48-LQFP package for the STM8L151C4T6. The medium-density STM8L151x4/6 family also provides standard communication interfaces including SPI, I2C, and USART, according to the manufacturer datasheet search result. Additional family-level resources include timers, ADC, DAC, comparators, real-time-clock capability, and 1 KB of data EEPROM; exact counts and operating limits for this specific order code must be verified in the official datasheet before design release. Typical embedded uses include low-power sensor nodes, industrial measurement modules, compact control boards, communication transceivers, and handheld or battery-operated products. The 48-LQFP footprint provides more external signal access than smaller packages and can simplify routing when several serial, timer, analog, or digital interfaces are required. Its 16 MHz maximum frequency supports time-sensitive control loops and protocol handling while retaining the simplicity of an 8-bit architecture. Designers should confirm the exact pin names, alternate-function mappings, electrical limits, clock configuration, and low-power mode requirements from the STM8L151C4 datasheet before PCB release. Software migration is most straightforward among devices with identical peripheral maps and package pinouts; a nominal package match alone is insufficient evidence for a drop-in replacement. This product record combines the verified manufacturer and distributor identity, package, memory, clock, and interface information with application guidance and sourcing context. It is intended to help engineers evaluate the STM8L151C4T6 while keeping unverified electrical details explicitly marked for validation.

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STM8L151C4U6 - 8-bit Ultra-Low Power MCU 16KB Flash | ST
STM8L151C4U6

STM8L151C4U6 - 8-bit Ultra-Low Power MCU 16KB Flash | ST

The STMicroelectronics STM8L151C4U6 is an 8-bit ultra-low-power microcontroller from the STM8L EnergyLite family, featuring a 16 MHz STM8 core, 16 KB of embedded Flash, and 1 KB of data EEPROM, housed in a 48-pin UFQFPN (7x7 mm) package with exposed pad. It operates across a wide 1.8 V to 3.6 V supply range (2.5 V / 3.3 V nominal), provides 41 general-purpose I/O ports, and integrates a rich set of peripherals including a 12-bit ADC, DMA controller, real-time clock, standard communication interfaces (SPI, I2C, USART), multiple low-power timer options, and a 4x28-segment LCD driver available on the companion STM8L152xx line. An ultra-low-power MCU is a microcontroller specifically engineered to minimize active, standby, and sleep-mode current draw, allowing battery-powered end products to operate for years on small cells. Within the broader taxonomy, the STM8L151C4U6 belongs to the 8-bit MCU segment, itself a subset of microcontrollers, which in turn belong to integrated circuits in the power-management domain. The STM8L core uses a CISC architecture with a modified Harvard layout and a 16-bit instruction word, delivering strong code density and deterministic interrupt response at low clock rates. Key electrical characteristics include a maximum HSI clock speed of 16 MHz, an internal voltage regulator supporting 1.8 V to 3.6 V operation, multiple low-power modes (HALT, Active-Halt, Wait, Low-power Run), and integrated reset circuitry. The UFQFPN-48 (7x7) package offers a compact footprint, an exposed thermal pad for improved dissipation, and surface-mount compatibility with standard reflow profiles, while the integrated peripherals substantially reduce external component count and BOM cost. Application areas include battery-powered IoT sensor nodes, wearable health-monitoring devices, smart meters, remote controls, industrial sensor transmitters, and consumer electronics where energy budget is critical. The 16-bit tim encoder interfaces, USART, SPI, and I2C make it well-suited for both sensor front ends and short-range wireless MCU companions. Designers should leverage the STM8 peripheral library and STVP / ST Visual Develop or IAR / Cosmic toolchains, ensure the exposed pad is soldered for thermal and electrical ground reference, and follow ST AN3149 application-note recommendations for the STM8L low-power modes to achieve the published 0.9 µA HALT current and 4.4 µA Low-power Run numbers. This page synthesizes distributor stock, STM8L-family drop-in alternatives, and practical PCB-layout guidance for ultra-low-power designs that are not aggregated in the manufacturer datasheet alone.

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STM8L151C6T3 - 8-bit 16MHz 32KB Flash Ultra-Low MCU | STMicroelectronics
STM8L151C6T3

STM8L151C6T3 - 8-bit 16MHz 32KB Flash Ultra-Low MCU | STMicroelectronics

The STMicroelectronics STM8L151C6T3 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller featuring 32KB of embedded Flash, 2KB of SRAM, and 1KB of true data EEPROM, housed in a 48-pin LQFP (7x7mm) package. Operating from a 1.8V to 3.6V supply with a 16MHz STM8 CISC core, it targets battery-powered and energy-harvesting applications where quiescent current budget is critical to end-device lifetime. An ultra-low-power microcontroller (MCU) is a class of microcontroller optimized to minimize active and standby current consumption through aggressive clock gating, multiple low-power modes (Halt, Active-Halt, Wait, Run), and the ability to operate from sub-3V rails. STM8L MCUs sit within ST's broader portfolio that also includes the higher-integration STM8L152/4/5/8 lines which add LCD drivers, AES, and capacitive-sensing peripherals. The STM8L151C6T3 specifically uses a Harvard-architecture STM8S core with a 3-stage instruction pipeline, peripherals tied through a peripheral interconnect that allows independent clocking. Key features of the STM8L151C6T3 include a true 4.0 uA low-power Run mode, 1.45 uA Halt mode with RTC active, 350 nA Halt-without-RTC mode, integrated RTC, two 16-bit timers, one 8-bit timer, 12-bit ADC with up to 1 Msps, and 41 GPIOs across two ports. The device also includes an integrated LCD voltage booster option on the wider STM8L152 family, plus USART, SPI, and I2C peripherals for serial connectivity. Architecturally the STM8L151C6T3 uses the STM8 CISC instruction set with 16-bit instruction words, a 16-bit program counter, and a rich register file that lets the compiler generate compact code. Up to 32 MIPS at 16MHz, integrated clock tree with internal 16MHz HSI, and optional external crystal make it suitable for sensor hubs that wake periodically to read sensor data and return to Halt. The 32KB Flash supports in-application programming (IAP) over I2C/SPI/UART, allowing firmware upgrades without exposing the SWIM debug interface. Typical applications include battery-powered sensor nodes, wearables, electronic shelf labels, smart meters, and remote controls. Designers choose the STM8L151C6T3 when they need real EEPROM for parameter storage, robust <500 nA standby current, and a CISC core that produces dense assembly code for state machines. When designing with this device, evaluate quiescent current per power mode against the application's duty cycle. The 48-pin LQFP requires a 7x7mm PCB footprint with thermal pad routing guidelines per ST design guides. Use the STVP programmer and IAR/STM8 COSMIC toolchains for firmware development. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - particularly cross-family guidance for migration to STM32L0 when more MIPS or peripherals are required.

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STM8L151C6T6 - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics
STM8L151C6T6

STM8L151C6T6 - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics

The STM8L151C6T6 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. Housed in a 48-pin LQFP (7x7 mm) package, this MCU is designed for energy-sensitive applications requiring long battery life and high integration. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, integrating a processor core, memory, and programmable peripherals. The STM8L151C6T6 belongs to the STM8L ultra-low-power family, which is optimized for applications where power consumption is critical, such as portable medical devices, smart sensors, and industrial monitoring. As a member of the STM8L series, it balances processing capability with energy efficiency, making it a key component in the power management hierarchy of embedded systems. Key features include an operating power supply range of 1.8V to 3.6V, multiple low-power modes (Wait, Low-power Run, Low-power Wait, Active-halt, and Halt), and a rich set of peripherals: USART, I2C, SPI, 12-bit ADC, 12-bit DAC, comparators, timers, and an RTC. The device also supports an LCD driver (on STM8L152 variants) and offers up to 41 I/O pins. Its ultra-low-power design achieves typical current consumption as low as 0.3 µA in Halt mode, making it ideal for battery-powered applications. The STM8L151C6T6 is built on ST's proprietary STM8 core architecture, which is designed for high code density and efficient execution. The device includes a flexible clock system with internal and external oscillators, a comprehensive set of timers (including a basic timer, general-purpose timers, and a low-power timer), and a 12-bit ADC with up to 28 channels. The integrated EEPROM allows for data storage without external memory, simplifying system design and reducing BOM cost. Typical applications include portable medical devices (e.g., glucose meters, pulse oximeters), smart sensors for IoT nodes, industrial process control, and battery management systems. The ultra-low-power modes and wide operating voltage range make it particularly suited for devices powered by coin cells or energy harvesting. The rich analog peripherals (ADC, DAC, comparators) enable direct sensor interfacing without external components. When designing with this MCU, pay attention to the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 1 µF capacitor at the main power input. For lowest power consumption, use the Halt mode with the RTC running, and configure unused I/Os as analog inputs or outputs to avoid floating inputs. The STM8L151C6T6 is supported by ST's free development tools, including the ST Visual Develop (STVD) IDE and the STM8CubeMX configuration tool, which simplify firmware development and peripheral initialization.

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STM8L151C8T6 - 16MHz 64KB Ultra-Low-Power MCU | ST
STM8L151C8T6

STM8L151C8T6 - 16MHz 64KB Ultra-Low-Power MCU | ST

The STMicroelectronics STM8L151C8T6 is an 8-bit ultra-low-power microcontroller operating at up to 16 MHz, with 64 KB of Flash memory, 2 KB of data EEPROM, and a 48-LQFP 7 x 7 mm package. The device includes 41 I/O ports and operates from 1.8 V to 3.6 V, making it suitable for compact, power-constrained embedded systems. An ultra-low-power microcontroller is an integrated circuit designed to execute embedded-control functions while minimizing active and standby energy consumption. The STM8L family belongs to the hierarchy of microcontrollers, embedded processors, and semiconductors. It combines a general-purpose CPU, nonvolatile program memory, data EEPROM, timers, an RTC, LCD support, and communication peripherals in one package. Key verified features of the STM8L151C8T6 include a 16 MHz maximum clock, 64 KB Flash, 4 KB RAM, and 2 KB data EEPROM. Its 1.8 V to 3.6 V operating range supports 1.8 V, 2.5 V, and 3.3 V supply arrangements. The 41 I/O pins provide substantial interface capacity for sensors, displays, actuators, and low-speed serial peripherals, while the 48-LQFP package provides a practical surface-mount footprint. The STM8 architecture uses an 8-bit CISC core and targets embedded-control workloads rather than high-throughput application processing. The RTC supports timekeeping-oriented designs, LCD-related resources support display-oriented products, and the timer set supports periodic measurement, motor-control, and industrial timing functions. The 64 KB Flash capacity provides room for application firmware and boot logic, while EEPROM preserves small amounts of calibration or configuration data. Typical applications include battery-operated sensors, compact industrial controllers, utility meters, access terminals, low-power display modules, and embedded appliances. The combination of low-voltage operation, 41 I/O ports, EEPROM, RTC, and LCD support is particularly useful when a design needs several control functions without using a larger microcontroller or external peripheral devices. Designers should verify the complete pin configuration, peripheral availability, clock tree, and low-power modes against the STM8L151/152 documentation before layout. The 48-LQFP package also requires adequate solderable pad geometry and careful decoupling of the 1.8 V to 3.6 V supply. Exact timing, current consumption, and absolute electrical limits should be taken from the manufacturer documentation rather than inferred from distributor summaries. This product page consolidates verified specifications, sourcing information, package details, application guidance, and a technically qualified replacement assessment. Unlike a basic distributor listing, it distinguishes confirmed drop-in suitability from related STM8 devices and explicitly identifies parameters that still require confirmation from the manufacturer documentation.

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STM8L151C8U3 - 16MHz Ultra-Low-Power 8-Bit MCU | STMicroelectronics
STM8L151C8U3

STM8L151C8U3 - 16MHz Ultra-Low-Power 8-Bit MCU | STMicroelectronics

The STMicroelectronics STM8L151C8U3 is an ultra-low-power 8-bit CISC microcontroller with a 16 MHz clock, 64 KB of Flash memory, 2 KB of RAM, and 41 I/O ports in a 48-pin UFQFPN package with an exposed pad. It operates from 1.8 V to 3.6 V and combines an STM8 CPU core with low-power design features for compact, energy-conscious embedded systems. A microcontroller is a programmable system-on-chip that integrates a CPU core, program memory, data memory, peripherals, and I/O into one package. The STM8L151 belongs to the STM8L ultra-low-power MCU family, placing it within the hierarchy of 8-bit microcontroller, embedded controller, and semiconductor. Its combination of 64 KB Flash and 16 MHz processing is intended for control-intensive products requiring more program storage than the smallest STM8 devices. The 64 KB Flash provides room for application firmware, while the 16 MHz maximum clock supports responsive control tasks. A 41-port GPIO complement allows the device to connect sensors, indicators, communications interfaces, and discrete actuators. The manufacturer describes the STM8L15xx6/8 range as ultra-low-power, and the verified distributor listing identifies this member as an 8-bit MCU optimized around the 16 MHz clock and low-energy operation. The 48-pin UFQFPN package uses a 7 mm by 7 mm body and includes an exposed pad for improved package-level heat spreading. The exposed pad is normally connected to the ground plane in accordance with the manufacturer's land-pattern and thermal guidance. The 1.8 V to 3.6 V operating range supports low-voltage embedded systems, although the final design must preserve the device's supply-voltage and input-level limits for every connected peripheral. Typical design roles include compact sensor-hub controllers, battery-operated condition-monitoring equipment, low-power industrial controls, portable accessories, and embedded modules. The STM8L151C8U3 is most appropriate when an 8-bit architecture, 64 KB Flash, a relatively high I/O count, and ultra-low-power operation are more important than using a higher-cost 32-bit MCU with a much larger memory and peripheral footprint. Designers should confirm the exact pin functions, exposed-pad connection, decoupling requirements, clock configuration, and peripheral pin multiplexing against the official STM8L151C8 documentation. Software migration or alternate sourcing should not be based only on package dimensions or Flash capacity; peripheral assignments, electrical limits, and the complete 48-pin land pattern must also match. This page consolidates verified manufacturer and distributor information with package-aware replacement guidance, application fit, and engineering cautions. It is intended to make device selection and sourcing more efficient while clearly separating documented STM8L151C8U3 facts from details that require direct datasheet verification.

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STM8L151F2P6 - 16MHz 4KB Ultra-Low-Power MCU | ST
STM8L151F2P6

STM8L151F2P6 - 16MHz 4KB Ultra-Low-Power MCU | ST

STMicroelectronics STM8L151F2P6 is an 8-bit ultra-low-power microcontroller with a 16 MHz maximum clock, 4 KB Flash memory, 1 KB RAM, and a 20-pin TSSOP package. The STM8L151F2P6 supports a 1.8 V to 3.6 V supply range and provides up to 16 MIPS while retaining the CISC architecture and peripheral integration of the STM8L platform. An ultra-low-power microcontroller is an embedded controller designed to maintain useful processing, sensing, and communication functions while minimizing energy use during idle, sleep, and stop operating states. Within the product hierarchy, the STM8L151F2P6 is an 8-bit MCU, an embedded processing IC, and a member of the STM8L EnergyLite family. This makes it suitable for compact, battery-operated or energy-conscious systems in which low active and standby power are more important than high arithmetic throughput. Key device attributes include 16 MHz operation, 4 KB Flash, 1 KB RAM, a 1.8 V to 3.6 V supply range, and a 20-pin TSSOP package. The enhanced STM8 CPU core can execute up to 16 MIPS at 16 MHz, giving embedded control loops more scheduling capacity than lower-frequency 8-bit implementations. Its low-density integration also helps reduce board area, external memory requirements, and system complexity for compact control products. The STM8L151F2P6 belongs to a CISC-based STM8 architecture optimized for efficient control code rather than application-processor workloads. Its 4 KB Flash stores firmware while 1 KB RAM supports working state, stack operations, and peripheral buffering. The manufacturer product page identifies the STM8L151F2/3 low-density family as an ultra-low-power MCU family, while distributor data confirms the specific device's 8-bit architecture, 16 MHz clock, memory configuration, and package format. Typical applications include low-power sensor nodes, compact industrial controls, battery-powered instruments, energy-metering peripherals, home automation endpoints, and embedded monitoring modules. The 20-pin TSSOP package is particularly useful where a conventional large QFP footprint would be unnecessary but exposed-package or fine-pitch assembly would also be undesirable. Firmware and peripheral configuration should still be checked against the complete manufacturer datasheet before production use. Designers should account for the 1.8 V to 3.6 V operating range, verify that every connected sensor and actuator supports the selected rail, and confirm the exact pin functions in the manufacturer pinout. Low-power operation depends on firmware, clock configuration, peripheral activity, and board leakage, so measured current cannot be inferred from the headline 16 MHz specification alone. This product record combines the verified manufacturer and distributor information, a lifecycle assessment, procurement pricing, family alternatives, and practical selection guidance. It is intended to help engineers identify whether the 20-pin STM8L151F2P6 offers the required balance of Flash, RAM, speed, voltage, package size, and ultra-low-power behavior before beginning PCB and firmware development.

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STM8L151F3P3 - 16MHz 8KB Flash MCU | STMicroelectronics
STM8L151F3P3

STM8L151F3P3 - 16MHz 8KB Flash MCU | STMicroelectronics

The STMicroelectronics STM8L151F3P3 is an 8-bit ultra-low-power STM8L EnergyLite microcontroller with a 16 MHz enhanced STM8 CPU core, 8 KB Flash memory, and a 20-pin TSSOP package. Its headline specifications are 16 MHz operation, 8 KB Flash memory, and a 1.8 V to 3.6 V supply range, making it suitable for compact, battery-operated embedded systems. What is an ultra-low-power microcontroller? An MCU integrates a processor, programmable memory, peripherals, and I/O on one semiconductor device. The STM8L family is designed for energy-efficient embedded control, where the system may spend substantial time in low-power states between sensor readings, user actions, or communications. In the hierarchy of electronic components, an MCU is a semiconductor, a microcontroller, and an embedded processing device used for control and automation. The verified device information identifies an enhanced STM8 CPU core capable of up to 16 MIPS at 16 MHz, 8 KB Flash organized as 8K x 8, and 1 KB of RAM as indicated by the comparison data. The 20-pin TSSOP package supports surface-mount assembly and is specified for an operating supply of 1.8 V to 3.6 V. The MCU is positioned for low-power embedded control rather than high-performance computing, providing a balanced combination of processing speed, memory, and compact packaging. The STM8L151F3P3 can be used in sensor nodes, battery-powered instruments, simple industrial controls, consumer accessories, and low-power monitoring systems. Its 8-bit architecture is appropriate for sequential control, parameter reading, state management, and communication tasks where application complexity does not require a larger processor. Its TSSOP-20 package is also useful when a design needs a modest pin count and a conventional leaded surface-mount footprint. When designing a board around the STM8L151F3P3, verify the exact pin assignments and peripheral multiplexing in the manufacturer datasheet before finalizing the PCB. Provide stable decoupling near the power pins, confirm the clock and reset requirements, and account for the 1.8 V to 3.6 V supply range. Firmware should also be tested across the intended temperature, voltage, and low-power operating conditions. This product page combines the verified manufacturer and distributor information with practical sourcing, comparison, and design guidance. Pricing and availability should be checked with authorized distributors, while the manufacturer datasheet remains the controlling reference for electrical limits, pinout, memory behavior, and peripheral operation.

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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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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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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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