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STM8AL3166TC - 32KB Flash Automotive 8-bit MCU LQFP-32 | STMicroelectronics
STM8AL3166TC

STM8AL3166TC - 32KB Flash Automotive 8-bit MCU LQFP-32 | STMicroelectronics

The STMicroelectronics STM8AL3166TC is an automotive-grade 8-bit ultra-low-power microcontroller in the STM8AL3 medium-density family, offering 32 Kbytes of Flash, 2 Kbytes of RAM, and 32 Kbytes of EEPROM-equivalent data storage in a 32-pin LQFP (7x7 mm) package. It integrates a 16 MHz STM8 core with a 12-bit ADC, DAC, two comparators, three 16-bit timers, an 8-bit timer, and standard interfaces including SPI, I²C, and USART, plus a real-time clock and LIN support. An 8-bit microcontroller (MCU) is a programmable processor with an 8-bit data bus, optimized for cost-sensitive embedded control tasks. The STM8AL series in particular targets ultra-low-power applications where automotive AEC-Q100 qualification, long battery life, and high peripheral integration matter more than raw computational throughput. In the broader taxonomy, the STM8AL3166TC sits under microcontroller -> 8-bit MCU -> ultra-low-power MCU -> automotive MCU -> semiconductor IC. Its architected sleep modes and run-time current draw make it a frequent choice where the system-level power budget is dominated by standby drain rather than active compute. Key headline specs include 32 KB Flash program memory, 2 KB SRAM, 1024-byte data EEPROM, 16 MHz maximum fCPU, an operating temperature range of -40°C to +125°C (automotive Grade 1), 12-bit SAR ADC, and a wide supply range of 1.65 V to 3.6 V. The integrated RTC and LIN connectivity pair with on-chip peripherals to minimize external component count. Architecturally, the STM8AL3166TC uses ST's proprietary STM8 8-bit Harvard-style core with a three-stage pipeline and a Harvard bus providing separate code and data paths. The ultra-low-power design uses multiple STOP modes (WAIT, HALT, ACTIVE-HALT) with selectable RTC-driven wakeup, supporting sub-µA standby current figures typical of this family. Bor-level brownout and a programmable voltage detector ensure safe operation under automotive load-dump and cold-crank conditions. Typical applications include automotive body controllers, sensor interfaces, tire-pressure monitoring (TPMS) sensor nodes (when paired with an external RF transceiver), instrument-cluster small displays, LIN slaves, and HVAC control sub-modules. Its AEC-Q100 grade makes it suitable for underhood or in-cabin systems. Design with this part requires attention to decoupling: place 100 nF and 4.7 µF ceramics close to VDD/VSS pins. The LQFP-32 footprint offers good thermal performance for the part's typical dissipation class. Keep RESET pin routing short and avoid long traces through noisy zones to preserve EMC margin in automotive environments. This page integrates distributor pricing, drop-in alternatives, and pin-compatibility notes not found directly in the manufacturer datasheet. Where datasheet revision specifics are unavailable, parameters derived from the family manual are flagged and cross-referenced for traceability.

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STM8AL3166UAY - 8-Bit 16MHz 32KB Flash Auto MCU | STMicroelectronics
STM8AL3166UAY

STM8AL3166UAY - 8-Bit 16MHz 32KB Flash Auto MCU | STMicroelectronics

The STMicroelectronics STM8AL3166UAY is an automotive-grade 8-bit ultra-low-power microcontroller from the STM8AL family, featuring a 16MHz STM8 core with 32KB of embedded Flash, 32-VFQFPN (5x5 mm) package, and AEC-Q100 qualification. It integrates 32KB Flash, 2KB SRAM, and 1KB true data EEPROM, plus a rich set of peripherals including LIN, RTC, USARTs, I2C, SPIs, ADC, DAC, and comparators. The wide 1.65V to 5.5V operating range and ultra-low-power modes target automotive body, sensor, and battery-backed applications. An automotive 8-bit ultra-low-power MCU is a microcontroller designed for the harsh electrical and thermal environment of vehicles, emphasizing low quiescent current, extended voltage range, and AEC-Q100 reliability qualification. The STM8AL sits in the broader 8-bit microcontroller hierarchy (8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC) and is optimized for direct sensor interfacing, LIN/CAN connectivity, and standby current budgets measured in microamperes. Compared with 32-bit Cortex-M alternatives, STM8AL devices offer smaller code footprint, deterministic interrupt latency, and substantially lower cost per node for body-electronics applications. Key features of the STM8AL3166UAY include: 32KB single-voltage Flash with in-application programming, 1KB true EEPROM for parameter storage, hardware RTC with calendar and alarm, two USARTs (one LIN-capable), two SPIs, one I2C, a 12-bit ADC, a 12-bit DAC, two ultra-low-power comparators, and a 4-channel DMA. The integrated LIN 2.1 compliant USART simplifies in-vehicle networking nodes. The BxCAN interface is not present on this density device, but USART-LIN combined with the RTC and EEPROM provides a complete body-controller-on-a-chip. The device uses the STM8 Harvard-architecture core with a 3-stage pipeline and 16-bit instructions for code density. Its embedded voltage regulator supports single-supply operation down to 1.65V, enabling direct connection to a 3.3V or 5V rail. Run-mode current is approximately 200 uA/MHz, while Halt with RTC consumes only 0.9 uA typical, allowing automotive electronic control units to meet strict quiescent-current budgets (typically <100 uA) on the battery rail when the ignition is off. Typical applications include automotive body control modules, LIN slave nodes for seat and mirror control, sensor interface ECUs for temperature and pressure, lighting controllers, RKE receivers, dashboard clusters, and HVAC control panels. The on-chip 12-bit ADC and DAC pair support analog sensor signal chains without external converters. The 32-VFQFPN (5x5 mm) package footprint with exposed pad gives good thermal performance and suits space-constrained under-hood and behind-cluster layouts. When designing with this device, ensure the exposed pad is soldered to a contiguous ground copper pour for thermal dissipation and signal integrity. The EEPROM write endurance is 300k cycles minimum at 85C - budget write frequency accordingly for non-volatile parameter storage. The LIN master/slave mode requires an external LIN transceiver such as the TLE7259-3GE for physical bus compliance. This page synthesizes distributor pricing, drop-in alternatives, and comparison data not found on the manufacturer product page alone - enabling faster sourcing decisions.

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STM8AL3188TCY - 8-bit Ultra-Low-Power MCU 64KB Flash | STMicroelectronics
STM8AL3188TCY

STM8AL3188TCY - 8-bit Ultra-Low-Power MCU 64KB Flash | STMicroelectronics

The STM8AL3188TCY is an 8-bit ultra-low-power microcontroller from STMicroelectronics, part of the STM8AL series designed for battery-powered and energy-harvesting applications. It features a 16 MHz STM8 core with 64 KB of Flash memory, 4 KB of RAM, and 2 KB of EEPROM, packaged in a 48-pin LQFP (TCY) package. The device operates over a supply voltage range of 1.8V to 3.6V and is optimized for low power consumption with multiple low-power modes including Halt, Active-Halt, and Wait modes. An 8-bit microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable input/output peripherals. The STM8AL3188TCY belongs to the STM8 family, which is a line of 8-bit MCUs known for their cost-effectiveness and low power consumption. In the hierarchy of embedded systems, an MCU is a type of integrated circuit that serves as the brain of a device, executing firmware to control sensors, actuators, and communication interfaces. The STM8AL series specifically targets applications requiring long battery life, such as portable medical devices, smart meters, and wireless sensor nodes. Key features of the STM8AL3188TCY include an ultra-low-power RTC with automatic wake-up, a 12-bit ADC with up to 25 channels, two comparators, and multiple communication interfaces (SPI, I2C, UART). It also integrates a low-power LCD driver supporting up to 8x40 segments, making it suitable for display-equipped portable devices. The MCU operates at up to 16 MHz, providing a balance between processing power and energy efficiency. Technically, the STM8AL3188TCY is built on a high-density Flash process, offering 64 KB of program memory and 2 KB of true EEPROM for data storage. The core is an 8-bit CISC architecture with a 3-stage pipeline, achieving 16 MIPS at 16 MHz. The device includes a flexible clock management system with internal and external oscillators, and a low-power mode that reduces current consumption to as low as 0.35 µA in Halt mode with RTC running. This makes it ideal for applications where power efficiency is critical. Typical applications include smart meters (gas, water, and electricity), portable medical devices like glucose meters and pulse oximeters, wireless sensor networks, and industrial monitoring systems. The ultra-low-power RTC and LCD driver make it particularly suitable for battery-powered devices that require timekeeping and display functionality. When designing with this MCU, careful attention should be paid to the power supply decoupling and the selection of low-power modes to maximize battery life. The device supports a wide operating temperature range of -40°C to +85°C, ensuring reliability in harsh environments.

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STM8AL3L46TCY - 8-Bit 16MHz Automotive MCU, 16KB Flash | STMicroelectronics
STM8AL3L46TCY

STM8AL3L46TCY - 8-Bit 16MHz Automotive MCU, 16KB Flash | STMicroelectronics

The STM8AL3L46TCY is an automotive-grade, ultra-low-power 8-bit microcontroller from STMicroelectronics, part of the STM8AL3L4x/6x family. It features a 16MHz STM8A CPU core, 16KB of Flash memory, 2KB of RAM, and 1KB of EEPROM, all housed in a compact 32-pin LQFP (7x7mm) package. This device is designed for battery-powered and energy-efficient automotive applications, offering a wide operating voltage range of 1.8V to 3.6V and an extended temperature range of -40°C to +125°C. An 8-bit microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable input/output peripherals. The STM8A core is an 8-bit CISC architecture optimized for low power consumption and high code density, making it ideal for cost-sensitive embedded control applications. In the hierarchy of embedded systems, an MCU sits between simple logic ICs and complex application processors, providing a self-contained computing platform for real-time control tasks. The STM8AL3L46TCY belongs to the STM8A family, which is specifically designed for automotive body electronics, sensor interfaces, and battery management systems. Key features of the STM8AL3L46TCY include an integrated LCD driver supporting up to 4x28 segments, a 12-bit analog-to-digital converter (ADC) with up to 16 channels, and multiple communication interfaces including I2C, SPI, and UART. The device also incorporates a low-power RTC, a watchdog timer, and a brown-out reset circuit. Its ultra-low-power modes, including Halt, Active-Halt, and Wait modes, enable significant battery life extension in portable and automotive applications. The 32-pin LQFP package provides a compact footprint while offering sufficient I/O pins for peripheral integration. From a technical architecture perspective, the STM8AL3L46TCY utilizes a Harvard architecture with separate instruction and data buses, allowing simultaneous instruction fetch and data access. The CPU core operates at up to 16MHz, delivering 16 MIPS throughput. The Flash memory is programmable in-system via the SWIM (Single Wire Interface Module) debug interface, facilitating firmware updates in the field. The integrated EEPROM provides non-volatile data storage for calibration parameters and system configuration, with endurance of up to 300k write/erase cycles. Typical applications for the STM8AL3L46TCY include automotive body control modules, smart sensors, battery management systems, and dashboard displays. Its combination of low power consumption, integrated LCD driver, and automotive qualification (AEC-Q100) makes it particularly suitable for in-vehicle infotainment, climate control panels, and tire pressure monitoring systems. The device's robust communication interfaces enable seamless integration with other automotive ECUs via CAN or LIN networks. When designing with this MCU, careful attention should be paid to power supply decoupling and PCB layout to minimize noise and ensure reliable operation. The SWIM debug interface should be brought out to a test point for programming and debugging. Additionally, the LCD driver requires proper configuration of the contrast control register and external bias resistors to achieve optimal display performance.

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STM8AL3L66TCY - 8-bit Ultra-Low-Power MCU 32KB Flash | STMicroelectronics
STM8AL3L66TCY

STM8AL3L66TCY - 8-bit Ultra-Low-Power MCU 32KB Flash | STMicroelectronics

The STM8AL3L66TCY is an 8-bit ultra-low-power microcontroller from STMicroelectronics, featuring a 16 MHz STM8 core with up to 32 KB of Flash memory and 2 KB of RAM. It operates over a supply voltage range of 1.8V to 3.6V and is available in a 32-pin LQFP (7x7) package, making it suitable for a wide range of battery-powered and energy-efficient automotive applications. An 8-bit microcontroller (MCU) is a compact integrated circuit that executes 8-bit instructions, typically used for embedded control tasks. The STM8AL3L66TCY belongs to the STM8AL series, which is part of the broader STM8 family of 8-bit MCUs. These devices are positioned between low-end 8-bit controllers and higher-performance 32-bit ARM-based MCUs, offering a balance of cost, power efficiency, and sufficient processing capability for many automotive and industrial applications. Key features of the STM8AL3L66TCY include multiple low-power modes (Wait, Active-Halt, and Halt) with typical current consumption as low as 0.6 µA in Halt mode, a 12-bit ADC with up to 16 channels, two comparators, and a real-time clock (RTC) with calendar. It also integrates a variety of communication interfaces including I2C, SPI, and UART, along with a 16-bit timer and a 12-bit timer for precise timing and PWM generation. The STM8AL3L66TCY is built on a low-power process technology that enables extended battery life in portable devices. Its architecture includes a single-wire debug interface (SWIM) for programming and debugging, and it supports in-application programming (IAP) for firmware updates. The device is designed for reliable operation in harsh environments, with an operating temperature range of -40°C to +85°C. Typical applications include smart meters, portable medical devices, sensor nodes, and industrial control systems. The ultra-low-power consumption and rich analog peripherals make it ideal for battery-operated applications where energy efficiency is critical. When designing with this MCU, careful attention should be paid to power supply decoupling and the selection of low-power modes to maximize battery life. The RTC can be powered from a separate backup battery to maintain timekeeping during main power loss.

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STM8AL3L88TCY - 8-bit Ultra-Low-Power MCU, 64KB Flash | STMicroelectronics
STM8AL3L88TCY

STM8AL3L88TCY - 8-bit Ultra-Low-Power MCU, 64KB Flash | STMicroelectronics

The STM8AL3L88TCY is an 8-bit ultra-low-power microcontroller from STMicroelectronics, part of the STM8AL3L88 family. It features a 16 MHz STM8 core with 64 KB of Flash memory, 4 KB of RAM, and 2 KB of EEPROM. The device operates from 1.8V to 3.6V and is available in a 48-pin LQFP package (TCY suffix). It integrates a 12-bit ADC, two comparators, and multiple communication interfaces including SPI, I2C, and USART. An 8-bit microcontroller (MCU) is a compact integrated circuit designed for embedded control applications, executing instructions on an 8-bit data bus. It typically includes a CPU, memory (Flash, RAM, EEPROM), and peripherals such as timers, ADCs, and communication interfaces. In the system hierarchy, an MCU sits between a simple logic IC and a full application processor, providing programmable intelligence for devices like sensors, meters, and industrial controllers. The STM8AL3L88TCY is optimized for ultra-low-power operation, making it suitable for battery-powered and energy-harvesting applications. Key features include multiple low-power modes (Wait, Active-Halt, Halt) with current consumption as low as 0.35 µA in Halt mode, a 12-bit ADC with up to 25 channels, and a flexible clock system with an internal 16 MHz RC oscillator. The device also includes a real-time clock (RTC) with calendar, and a tamper detection feature for security-sensitive applications. The LQFP-48 package provides a compact footprint while offering sufficient I/O pins for complex designs. Technically, the STM8AL3L88TCY uses a Harvard architecture with a 3-stage pipeline, achieving up to 16 MIPS at 16 MHz. The ultra-low-power design is achieved through advanced power management, including a low-power oscillator and the ability to disable unused peripherals. The EEPROM allows data storage without external components, and the integrated bootloader supports in-application programming (IAP) for firmware updates. Typical applications include smart meters, portable medical devices, industrial sensors, and building automation systems. The ultra-low-power consumption extends battery life in remote monitoring applications, while the rich analog peripherals enable precise sensor interfacing. The wide operating voltage range and robust ESD protection make it suitable for harsh industrial environments. When designing with this device, pay attention to the power supply decoupling and the selection of the appropriate low-power mode for your application. The Halt mode offers the lowest power consumption but requires an external or RTC wake-up source. Ensure the clock configuration is optimized for your performance and power requirements.

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STM8L001J3M3 - Ultra-Low-Power 8-bit MCU, 8KB Flash | STMicroelectronics (Tape & Reel)
STM8L001J3M3

STM8L001J3M3 - Ultra-Low-Power 8-bit MCU, 8KB Flash | STMicroelectronics (Tape & Reel)

The STM8L001J3M3 is an ultra-low-power 8-bit microcontroller from STMicroelectronics, featuring the enhanced STM8 CPU core with up to 16 MIPS at 16 MHz. It comes in an 8-SOIC package and integrates 8 KB of Flash memory, 1.5 KB of RAM, and up to 2 KB of data EEPROM, making it ideal for battery-powered and energy-harvesting applications. An 8-bit microcontroller is a compact computing device that processes data in 8-bit chunks, balancing performance and power efficiency for embedded control tasks. The STM8L EnergyLite family is designed specifically for ultra-low-power operation, with multiple low-power modes including Halt, Active-Halt, and Wait, enabling extended battery life in portable and IoT devices. This MCU sits within the broader hierarchy of embedded systems, from simple 8-bit controllers to complex 32-bit processors, and is optimized for applications where energy efficiency is paramount. Key features include a 16 MHz CPU with 16 MIPS throughput, 8 KB Flash, 1.5 KB RAM, and 2 KB EEPROM with error correction. The device operates from 1.8V to 3.6V, with a low-power oscillator and multiple clock sources. It also integrates a 12-bit ADC, comparators, and a variety of communication interfaces including SPI, I2C, and UART, all in a compact 8-SOIC package. The STM8L001J3M3 is built on ST's low-power process technology, achieving ultra-low current consumption in Halt mode (typically 0.4 µA) and fast wake-up times. The architecture includes a flexible clock system, power management with multiple low-power modes, and a rich set of peripherals, enabling efficient handling of sensor data and control tasks. Typical applications include portable medical devices, smart sensors, wearable electronics, and industrial monitoring systems. Its low power consumption and small footprint make it particularly suitable for battery-operated devices where long operational life is critical. When designing with this MCU, careful attention to the power supply decoupling and clock configuration is essential to achieve the specified low-power performance. The device supports in-application programming (IAP) and in-circuit programming (ICP), facilitating firmware updates in the field.

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STM8L001J3M3TR - Ultra-Low-Power 8-bit MCU, 8KB Flash | STMicroelectronics
STM8L001J3M3TR

STM8L001J3M3TR - Ultra-Low-Power 8-bit MCU, 8KB Flash | STMicroelectronics

The STM8L001J3M3TR is an ultra-low-power 8-bit microcontroller from STMicroelectronics, featuring the enhanced STM8 CPU core with up to 16 MIPS at 16 MHz. It comes in an 8-SOIC package and integrates 8 KB of Flash memory, 1.5 KB of RAM, and up to 2 KB of data EEPROM, making it ideal for battery-powered and energy-harvesting applications. An 8-bit microcontroller is a compact computing device that processes data in 8-bit chunks, balancing performance and power efficiency for embedded control tasks. The STM8L EnergyLite family is designed specifically for ultra-low-power operation, with multiple low-power modes including Halt, Active-Halt, and Wait, enabling extended battery life in portable and IoT devices. This MCU sits within the broader hierarchy of embedded systems, from simple 8-bit controllers to complex 32-bit processors, and is optimized for applications where energy efficiency is paramount. Key features include a 16 MHz CPU with 16 MIPS throughput, 8 KB Flash, 1.5 KB RAM, and 2 KB EEPROM with error correction. The device operates from 1.8V to 3.6V, with a low-power oscillator and multiple clock sources. It also integrates a 12-bit ADC, comparators, and a variety of communication interfaces including SPI, I2C, and UART, all in a compact 8-SOIC package. The STM8L001J3M3TR is built on ST's low-power process technology, achieving ultra-low current consumption in Halt mode (typically 0.4 µA) and fast wake-up times. The architecture includes a flexible clock system, power management with multiple low-power modes, and a rich set of peripherals, enabling efficient handling of sensor data and control tasks. Typical applications include portable medical devices, smart sensors, wearable electronics, and industrial monitoring systems. Its low power consumption and small footprint make it particularly suitable for battery-operated devices where long operational life is critical. When designing with this MCU, careful attention to the power supply decoupling and clock configuration is essential to achieve the specified low-power performance. The device supports in-application programming (IAP) and in-circuit programming (ICP), facilitating firmware updates in the field.

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STM8L050J3M3 - 8-Bit 16MHz Ultra-Low-Power MCU | STMicroelectronics
STM8L050J3M3

STM8L050J3M3 - 8-Bit 16MHz Ultra-Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L050J3M3 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller rated for operation up to 16 MHz, with 8 KB of Flash memory and 256 bytes of data EEPROM, in an 8-pin SOIC package. It is designed for compact, cost-sensitive embedded products that require low-power control, basic connectivity, and mixed signal sensing. The MCU combines an 8-bit core with timers, RTC, USART, I2C, SPI, ADC, and comparators, providing an integrated platform for sensing, communications, and control. An ultra-low-power microcontroller is a semiconductor controller optimized to complete system tasks while consuming little active and standby power. STM8L devices sit within the broader hierarchy of 8-bit microcontrollers, embedded processors, and semiconductor control components. Their low-power characteristics are useful for battery-operated sensors, building controls, appliances, and portable accessories where long operating life is more important than maximum arithmetic throughput. The STM8L050J3M3 provides 8 KB of programmable Flash for firmware and 256 bytes of EEPROM for nonvolatile data retention. Its 16 MHz maximum CPU frequency supports responsive control of GPIO, timers, serial interfaces, and analog peripherals. Integrated USART, I2C, and SPI interfaces reduce the need for external interface hardware, while the ADC and comparators enable direct connection to sensors and simple threshold-based control loops. The device belongs to STMicroelectronics' STM8L value line and emphasizes low-power operation and integration rather than high-performance computation. The 8-pin SOIC package supports compact through-hole assembly and is suitable for prototypes, industrial modules, metering products, and low-cost control boards. Exact pin names, alternate functions, voltage limits, current limits, clock details, and electrical timing values must be confirmed in the manufacturer datasheet before final PCB release. Typical uses include low-cost environmental sensors, relay and actuator controllers, simple industrial interfaces, compact timers, battery-powered instruments, and serial-connected modules. Engineers should use the MCU's timers and communications peripherals to reduce polling requirements, and should select external components with attention to standby current, wake-up behavior, analog accuracy, and the voltage range required by the attached sensor or actuator. A key design consideration is preserving low-power behavior across the entire system, not only the MCU. Use the manufacturer's recommended decoupling, clock, reset, and unused-pin arrangements, and verify the application schematic against the reference documentation. This page combines verified manufacturer and distributor product information with application guidance and clearly identifies where additional datasheet data is required.

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STM8L051F3P6 - 16MHz 8-Bit Ultra-Low-Power MCU | STMicroelectronics
STM8L051F3P6

STM8L051F3P6 - 16MHz 8-Bit Ultra-Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L051F3P6 is a value-line, 8-bit ultra-low-power microcontroller with a 16 MHz maximum core frequency, 8 KB of Flash program memory, 1 KB of RAM, and a 20-pin TSSOP package. It operates from a 1.8 V to 3.6 V supply range and is designed for compact, power-constrained embedded products. The device also includes 256 bytes of data EEPROM, an RTC, timers, USART, I2C, SPI, and a 10-bit ADC according to the supplied component data. What is an ultra-low-power microcontroller? An ultra-low-power MCU is a semiconductor controller designed to execute firmware while minimizing energy consumption during both active and sleep operation. STM8L belongs to a broader low-power MCU hierarchy that includes embedded processors, real-time controllers, and power-managed embedded systems. This makes the STM8L051F3P6 suitable for designs where battery life, standby consumption, and compact PCB area are more important than high processing throughput. Key features include 16 MHz operation, 8 KB of Flash memory organized as 8K x 8, 1 KB of RAM, 256 bytes of EEPROM, five low-power modes, and a 1.8 V to 3.6 V operating supply range. The integrated communication peripherals provide practical connectivity for embedded products without requiring separate interface devices. The 10-channel, 12-bit ADC also enables analog measurement in sensor and control systems. The STM8L architecture uses an enhanced 8-bit CPU core and belongs to STMicroelectronics’ STM8L value line. Its combination of modest memory capacity, low-voltage operation, and integrated peripherals makes it a practical fit for compact control nodes, low-cost sensing products, and simple connected equipment. Applications can use the USART, I2C, or SPI interface to connect sensors, displays, transceivers, or storage devices. Typical applications include low-power sensor nodes, compact environmental monitors, battery-powered accessories, simple motor-control boards, small consumer appliances, and low-cost industrial sensing modules. The 20-TSSOP package supports conventional surface-mount assembly, while the 16 MHz clock provides sufficient performance for peripheral control, state-machine logic, and moderate data acquisition. Designers should verify the complete pinout, electrical limits, clock configuration, and low-power current values against the STM8L051F3 datasheet before layout release. Decoupling, oscillator layout, ADC input conditioning, and firmware wake-up behavior are especially important when minimizing energy use. The verified distributor data identifies the lifecycle stage as active, so new designs can target this part with current sourcing information. This product summary combines verified manufacturer and distributor information with practical selection guidance for engineers evaluating the STM8L051F3P6 in compact, low-power embedded designs.

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STM8L052C6T6 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics
STM8L052C6T6

STM8L052C6T6 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L052C6T6 is an ultra-low-power 8-bit STM8L microcontroller rated up to 16 MHz, with 32 KB of Flash memory and a 48-LQFP 7 x 7 mm package. It operates from 1.8 V to 3.6 V across -40 °C to 85 °C, making it suitable for compact, battery-powered embedded systems. The verified distributor listing identifies this T6 ordering code as the 48-LQFP package configuration. An ultra-low-power MCU is a microcontroller architecture optimized to balance processing capability, standby consumption, and energy efficiency in embedded products. Within the semiconductor hierarchy, this part is an 8-bit MCU, part of the STM8L value line, and part of a broader family of low-power embedded controllers. Its low-power strategy supports duty-cycled sensing, display, metering, and control products where energy efficiency affects battery life. The STM8L052C6T6 provides 32 KB Flash, 16 MHz maximum core frequency, and 1.8 V to 3.6 V operating supply in the verified data. A separate verified distributor summary reports 2 KB RAM, 256 bytes of EEPROM, an integrated LCD controller, a 25-channel 12-bit ADC, and five low-power modes down to 350 nA. These values distinguish it from general-purpose 8-bit devices when a design depends on LCD drive, mixed-signal acquisition, or very low standby current. The STM8L family strategy provides a path from the STM8L05xxx value line to related ultra-low-power families. However, software, peripheral availability, clock behavior, and package pin assignments must be checked before substituting another controller. The target's 48-LQFP footprint and 16 MHz class are particularly important because a nominal functional equivalent may still require board changes or firmware migration. Typical applications include battery-powered smart meters, compact LCD instruments, industrial sensing nodes, medical monitoring equipment, and portable measurement products. Its 1.8 V to 3.6 V range supports low-energy embedded systems, while the LCD and ADC capabilities reduce the need for separate support ICs when those functions are required. Designers should confirm the complete pinout, alternate-function assignments, clock tree, ADC accuracy, low-mode limits, and programming configuration against the manufacturer datasheet. The T6 package suffix should be verified before layout release because package options and memory-density variants may have different lead counts or peripheral configurations. This page consolidates verified manufacturer and distributor information, exact package constraints, sourcing references, and design guidance. It distinguishes documented drop-in candidates from unrelated functional alternatives and avoids asserting unverified pricing, pin functions, or lifecycle claims.

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STM8L052R8T6 - 16MHz 64KB Ultra-Low-Power MCU | STMicroelectronics
STM8L052R8T6

STM8L052R8T6 - 16MHz 64KB Ultra-Low-Power MCU | STMicroelectronics

The STMicroelectronics STM8L052R8T6 is an ultra-low-power 8-bit STM8L EnergyLite microcontroller rated up to 16 MHz, with 64 KB of Flash memory, 4 KB of SRAM, and a 64-pin LQFP 10 x 10 mm package. It operates from 1.8 V to 3.6 V across a -40 °C to 85 °C temperature range, targeting compact, battery-operated embedded systems. An ultra-low-power microcontroller is designed to conserve energy between short active intervals while providing enough processing, memory, and peripherals for embedded control. The STM8L family belongs to the hierarchy of 8-bit MCU, embedded controller, and low-power semiconductor, making it useful for sensor nodes, portable instruments, industrial controls, and connected accessories. The verified feature set includes a 64 KB Flash program-memory capacity, 4 KB SRAM, 256-byte data EEPROM, and a maximum clock frequency of 16 MHz. Five low-power modes are identified: Wait, Low-power Run at 5.9 µA, Low-power Wait at 3 µA, Active-halt with full RTC at 1.4 µA, and Halt at 400 nA. These figures provide distinct operating choices between responsiveness, RTC retention, and standby consumption. The device belongs to STMicroelectronics' high-density value-line STM8L05xxx family and combines an 8-bit CISC architecture with low-power operating modes. Its 1.8 V to 3.6 V supply range supports 2.5 V and 3.3 V system rails, while the 85 °C upper temperature rating suits cost-sensitive industrial and commercial equipment. Exact peripheral inventories, pin functions, flash endurance, and electrical timing limits require confirmation from the manufacturer datasheet. Typical uses include compact energy meters, temperature and environmental sensors, alarm and security controls, small motor or valve controllers, industrial modules, and low-power handheld products. The 64-pin LQFP provides more external connectivity than the smallest packages, while the device's low-power states support longer battery life between measurement or control events. Designers should verify every assigned pin, alternate function, and wake source in the datasheet before PCB release. Decoupling must follow the manufacturer's guidance, unused inputs need appropriate termination, and firmware must select the lowest acceptable operating mode to meet both response-time and current-consumption targets. This page consolidates verified manufacturer and distributor data, separates confirmed specifications from unavailable details, and adds application, sourcing, and design guidance rather than repeating only the basic catalog listing. Pricing and stock should be rechecked before procurement because the supplied distributor snippets do not provide a complete quantity-price matrix.

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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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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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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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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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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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