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STM8AF6388 - 8-bit Automotive MCU, 64KB Flash | STMicroelectronics
STM8AF6388

STM8AF6388 - 8-bit Automotive MCU, 64KB Flash | STMicroelectronics

The STMicroelectronics STM8AF6388 is an 8-bit automotive-grade microcontroller based on the STM8A core, offering up to 64KB of Flash memory and 6KB of RAM in a 48-pin LQFP package. It operates over a supply voltage range of 3.0V to 5.5V and is designed for harsh automotive environments with an extended temperature range of -40°C to +150°C. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit central processing unit (CPU), memory, and programmable input/output peripherals. It is a subset of the broader microcontroller family, which falls under embedded systems and integrated circuits. The STM8A core is an enhanced 8-bit architecture with a three-stage pipeline, delivering up to 16 MIPS at 24 MHz, making it suitable for real-time control applications. Key features include 64KB of Flash memory with read-while-write capability, 6KB of SRAM, and 2KB of EEPROM with true data EEPROM. It integrates a 10-bit ADC with up to 16 channels, two 16-bit timers, one 8-bit timer, and a CAN 2.0B controller for automotive networking. The device also includes an SPI, I2C, and two UARTs for communication, along with a LIN interface for local interconnect networking. The STM8AF6388 is built on a high-density Flash technology, providing robust data retention and endurance. The automotive qualification (AEC-Q100) ensures reliability under extreme temperature and vibration conditions. The CAN controller supports both standard and extended frame formats, enabling seamless integration into vehicle networks. Typical applications include body control modules, automotive lighting control, sensor interfaces, and power window control. The device's low power consumption and wide voltage range make it ideal for battery-powered automotive systems. Its robust communication interfaces allow it to serve as a central node in distributed automotive networks. When designing with this MCU, ensure proper decoupling of the power supply pins and use the internal RC oscillator for cost-sensitive designs, or an external crystal for higher accuracy. The CAN bus requires proper termination resistors and common-mode chokes for EMC compliance.

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STM8AL3146TAY - 8-bit Ultra-Low-Power MCU, 16KB Flash | STMicroelectronics
STM8AL3146TAY

STM8AL3146TAY - 8-bit Ultra-Low-Power MCU, 16KB Flash | STMicroelectronics

The STM8AL3146TAY is an 8-bit ultra-low-power microcontroller from STMicroelectronics, featuring an STM8A core running at up to 16 MHz. It integrates 16 KB of Flash memory, 2 KB of RAM, and 1 KB of EEPROM, making it suitable for battery-powered and energy-harvesting applications. The device operates from a 1.8V to 3.6V supply and is available in a 32-pin LQFP (7x7) package. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit central processing unit (CPU), memory, and programmable input/output peripherals. It is a type of embedded processor used to control electronic systems, forming the core of many smart devices. In the hierarchy of computing devices, an 8-bit MCU is a subset of microcontrollers, which are a subset of embedded systems, which are a subset of electronic systems. The STM8AL3146TAY belongs to the STM8A family, which is designed for automotive and industrial applications requiring low power consumption and high reliability. Key features include multiple low-power modes (Wait, Active-Halt, Halt) with 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). It also integrates a variety of communication interfaces: SPI, I2C, and UART, enabling flexible connectivity. The device supports a wide operating temperature range of -40°C to +125°C, making it suitable for harsh environments. The STM8AL3146TAY is built on a low-power 8-bit core with a Harvard architecture, featuring an extended instruction set and a single-wire debug interface (SWIM). It includes a 16-bit timer, a 16-bit low-power timer, and a watchdog timer for robust operation. The EEPROM allows data storage without external components, and the Flash memory supports in-application programming (IAP) for firmware updates. Typical applications include automotive body electronics (e.g., window lift, lighting control), industrial sensors, smart meters, and portable medical devices. Its ultra-low-power consumption extends battery life in remote monitoring systems, while the wide temperature range ensures reliable operation in automotive under-hood environments. 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 supply. Use the low-power modes effectively to minimize average current consumption, and ensure the SWIM debug interface is accessible for programming and debugging.

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STM8AL3166TA - Automotive 8-bit MCU, 32KB Flash, LQFP-32 | ST
STM8AL3166TA

STM8AL3166TA - Automotive 8-bit MCU, 32KB Flash, LQFP-32 | ST

The STMicroelectronics STM8AL3166TA is an automotive-grade 8-bit ultra-low-power microcontroller from the STM8AL medium-density family, featuring a 16 MHz STM8 core, 32 KB of Flash, 32-LQFP (7x7) package, and operating across the -40C to +125C automotive temperature range. According to the manufacturer datasheet, this part integrates 12-bit ADC, DAC, two comparators, three 16-bit timers, one 8-bit timer, RTC, and standard communication peripherals including SPI, I2C, and USART. An 8-bit microcontroller (MCU) is a compact integrated circuit combining a low-power 8-bit CPU, program memory (Flash/ROM), data memory (RAM), and on-chip peripherals such as timers, ADC, and GPIO into a single package. The MCU sits at the hierarchy of microcontroller -> embedded processor -> semiconductor IC, serving as the brain of an embedded system for deterministic control tasks. The STM8AL medium-density line occupies the ultra-low-power, automotive-qualified tier of ST's 8-bit portfolio, designed for body electronics, sensor conditioning, and battery-powered ECUs. Key features of the STM8AL3166TA include the proprietary STM8 core running at 16 MHz, AES-128 hardware encryption on most L variants, integrated LCD driver (on L3xxx derivatives), ultra-low-power modes with sub-microamp standby current, AEC-Q100 qualification for automotive deployment, and 32 KB of single-voltage Flash with in-application programming. The device supports 1.65 V to 3.6 V supply and provides robust ESD immunity specified in the family datasheet. Architecturally, the STM8AL3166TA uses a Harvard-style architecture with separate program and data buses, a 16-bit stack pointer, and a 24-bit program counter that together enable linear 16 MB address space. The integrated voltage regulator, brown-out reset, and low-power real-time clock allow the part to operate for years from a single coin cell or automotive battery while still meeting strict quiescent-current budgets. Typical applications include automotive body controllers, sensor nodes, remote keyless entry, instrument cluster sub-modules, HVAC control, and industrial low-power wireless sensor platforms. The wide operating temperature and AEC-Q100 grade make the device suitable for under-hood and chassis-mounted ECUs. When designing with this MCU, allocate Flash for a robust bootloader to enable field firmware updates and leave at least one USART free for diagnostics. Use the brown-out reset and watchdog together to recover from corrupted supply or firmware states - this is essential for unattended automotive deployments. This page synthesizes distributor pricing, drop-in alternatives from the same STM8AL family, and practical application guidance not found in the manufacturer datasheet alone, helping procurement and engineering teams make an informed component selection.

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STM8AL3166TAY - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics
STM8AL3166TAY

STM8AL3166TAY - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics

The STM8AL3166TAY is an 8-bit ultra-low-power microcontroller from STMicroelectronics, based on the STM8A core. It operates at a maximum frequency of 16 MHz and features 32 KB of Flash memory, 2 KB of RAM, and 1 KB of EEPROM. The device is housed in a 32-pin LQFP package (7x7 mm) and is designed for automotive and industrial applications requiring low power consumption and high reliability. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit central processing unit (CPU), memory, and programmable input/output peripherals. It is a subset of the broader microcontroller family, which falls under embedded systems and integrated circuits. The STM8A core is an enhanced 8-bit architecture that provides efficient code density and low power operation, making it suitable for battery-powered and energy-harvesting applications. Key features of the STM8AL3166TAY include multiple low-power modes (Wait, Active-Halt, 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). It also integrates a variety of communication interfaces including SPI, I2C, and UART, along with a 16-bit timer and a 12-bit timer for precise timing control. The STM8AL3166TAY is built on a low-power process technology that enables a wide operating voltage range of 1.8V to 3.6V, with an extended temperature range of -40°C to +125°C for automotive-grade reliability. The device includes a brown-out reset (BOR) and a programmable voltage detector (PVD) for robust power management. Its EEPROM with write protection and read-out protection enhances data security in critical applications. Typical applications include automotive body control modules, battery management systems, industrial sensors, and portable medical devices. The ultra-low-power modes and rich analog peripherals make it ideal for applications that require long battery life and precise analog signal processing. When designing with this MCU, careful attention should be paid to decoupling the power supply with a 100nF capacitor close to each VDD pin and a 4.7µF bulk capacitor. The RTC requires a 32.768 kHz crystal for accurate timekeeping, and the ADC reference voltage should be filtered to minimize noise. Proper layout of the crystal and analog ground planes is essential for reliable operation.

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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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STM8L101F2P3 - 8-Bit 16MHz 4KB MCU | STMicroelectronics
STM8L101F2P3

STM8L101F2P3 - 8-Bit 16MHz 4KB MCU | STMicroelectronics

STMicroelectronics STM8L101F2P3 is an 8-bit ultra-low-power STM8 microcontroller with a 16 MHz enhanced CISC core, 4 KB of Flash memory, and a 20-pin TSSOP package. The device belongs to the STM8L101 low-power microcontroller family, whose architecture combines compact code density, fast execution, and low-power operation for embedded control systems. An ultra-low-power microcontroller is designed to spend substantial operating time in low-energy states while still providing real-time control and communications. The STM8L101 family is positioned between general-purpose 8-bit microcontrollers and more complex low-power processors. Its STM8 core provides up to 16 MIPS at 16 MHz, while integrated timers, comparators, USART, SPI, and I2C interfaces reduce the need for external peripheral components. The STM8L101F2P3 provides 4 KB of Flash for program storage and operates as an 8-bit CISC controller in a 20-pin TSSOP package. The STM8L101 family also supports options extending to 8 KB of Flash, making the STM8L101F2P3 a practical choice when program storage is sufficient but low power, compactness, and a broad set of communication interfaces are priorities. Its 20-pin TSSOP package supports integration in compact control boards while exposing the family's principal communications and timing resources. The STM8 core uses a 24-bit linear address space and an instruction set designed for efficient embedded code density. Low-power operating modes help reduce average energy consumption in battery-powered sensors, portable instruments, and always-on monitoring equipment. Typical applications include low-power sensor nodes, compact industrial controllers, battery-operated instruments, communication modules, and embedded measurement systems. USART, SPI, and I2C connectivity allow the controller to interface with sensors, transceivers, memories, and human-interface or data-acquisition circuitry. Its 16 MHz operating rate supports responsive control without requiring a larger processor or external programmable logic. PCB design should preserve low-power behavior and reliable communication. Place decoupling capacitors close to the supply pins, route sensitive signals away from fast-switching nodes, and confirm pin multiplexing and peripheral assignments against the manufacturer pin description before finalizing the PCB. Programming and peripheral configuration should be validated with the applicable STMicroelectronics toolchain and device programming interface. This product page combines the key MCU specifications, confirmed package details, practical application guidance, and same-package alternative analysis to support component selection, schematic review, PCB planning, and sourcing decisions for embedded engineers.

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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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STM8L101G2U6 - 16MHz 8-Bit Ultra-Low-Power MCU | STMicroelectronics
STM8L101G2U6

STM8L101G2U6 - 16MHz 8-Bit Ultra-Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L101G2U6 is an 8-bit ultra-low-power microcontroller built around the enhanced STM8 CPU core, operating at up to 16 MHz with 4 KB of Flash memory. The device is supplied in a 28-pin UFQFPN package measuring 4 x 4 mm, making it suitable for compact embedded systems where low power consumption, small board area, and integrated communication peripherals are important. Its 1.65 V to 3.6 V supply range supports low-voltage battery-powered and energy-conscious designs. An ultra-low-power microcontroller is a microcontroller optimized to minimize energy use during active processing, idle periods, and low-power operating states. The STM8L101 family belongs to the STM8L EnergyLite line and combines an 8-bit CPU, direct-memory-access peripherals, low-power modes, and communication interfaces in a single device. This hierarchy places it within the broader category of embedded processors and system-on-chip devices used for sensing, monitoring, control, and compact communications. The STM8L101G2U6 provides 4 KB of Flash organized as 4K x 8, with the STM8L101x2 device family supporting up to 8 Kbytes of Flash according to the manufacturer family description. Its communication resources include USART, SPI, and I2C, while multifunction timers and comparators support motor, control, sensing, and threshold-detection applications. The 16 MHz maximum clock frequency provides up to 16 MIPS of processing performance according to the STM8L101 family information. The 28-pin package exposes 18 general-purpose I/O ports according to the available component specifications, allowing connections to sensors, displays, actuators, communications transceivers, and human-interface controls. The 4 x 4 mm UFQFPN construction supports dense layouts but requires careful PCB planning because exposed-pad and fine-pitch soldering techniques are commonly needed for reliable assembly and thermal performance. Typical uses include low-voltage sensor nodes, compact motor controllers, battery-operated instruments, industrial monitoring modules, LED lighting controllers, and connected IoT edge devices. In each case, the STM8L101G2U6 acts as the central controller by executing application firmware, sampling analog or digital inputs, coordinating timers, and exchanging data through its serial interfaces. Designers should verify the exact pin assignments, alternate-function limitations, decoupling requirements, and exposed-pad connection using the manufacturer pinout and reference-design guidance. Low-power operation also depends on firmware: unused peripherals should be disabled, GPIO pins should be placed in suitable states, and wake-up behavior should be tested under the intended clock and load conditions. This product page consolidates the core STM8L101G2U6 specifications, interface capabilities, package considerations, application guidance, and same-family replacement information into an engineering-focused reference for compact low-voltage embedded designs.

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STM8L101G3U6 - 8-Bit 16MHz Low-Power MCU | STMicroelectronics
STM8L101G3U6

STM8L101G3U6 - 8-Bit 16MHz Low-Power MCU | STMicroelectronics

STMicroelectronics STM8L101G3U6 is an 8-bit ultra-low-power microcontroller with up to 8 KB of Flash memory, a maximum clock frequency of 16 MHz, and operation from 1.8 V to 3.3 V in a 28-pin UFQFPN package. It belongs to the STM8L101x3 low-power MCU family and combines an enhanced STM8 CPU core with compact flash memory for cost-sensitive embedded control designs. An ultra-low-power microcontroller is a semiconductor controller designed to execute firmware while minimizing energy consumption during active operation and sleep. The STM8L101 family occupies the low-power MCU segment of the broader embedded-controller hierarchy: MCU → 8-bit microcontroller → ultra-low-power MCU → STM8L EnergyLite family. Its low-voltage operation makes it relevant to battery-powered equipment and energy-conscious industrial systems, although the exact sleep currents and regulator characteristics should be confirmed in the manufacturer documentation before a power budget is finalized. The STM8L101G3U6 provides 8 KB of Flash, a 16 MHz maximum operating frequency, and up to 16 MIPS of computational throughput. The enhanced STM8 core retains a CISC architecture with improved code density and 24-bit linear addressing, helping compact firmware fit within the available memory. A temperature rating of -40°C to +85°C supports industrial-temperature equipment when the complete system is designed for that environment. The device is packaged in a 4 mm × 4 mm, 28-pin UFQFPN package. Its small land pattern supports compact products such as sensor nodes, compact controllers, low-power sensing modules, and auxiliary control devices. Designers should follow the manufacturer pin-description table, recommended land pattern, and exposed-pad connection requirements when creating the PCB footprint. Typical uses include low-voltage sensor interfaces, compact industrial controls, energy-efficient monitoring modules, battery-operated accessories, and embedded systems that need a small 8-bit controller without a high-pin-count package. The 16 MHz core is suitable for basic control, state-machine, communications, and peripheral coordination tasks where deterministic low-complexity firmware is sufficient. A key design consideration is that firmware compatibility and peripheral equivalence must be checked separately from package compatibility. When replacing another MCU, verify the exact pin assignments, interrupt mapping, clock limits, supply constraints, peripheral set, startup behavior, and programming interface before treating a candidate as a drop-in replacement. This product page consolidates the exact STM8L101G3U6 specifications, manufacturer and distributor resources, same-footprint alternatives, comparison parameters, and practical PCB and firmware-replacement guidance into one engineering-focused reference.

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STM8L101K3T3 - 16MHz 8KB 8-Bit MCU | STMicroelectronics
STM8L101K3T3

STM8L101K3T3 - 16MHz 8KB 8-Bit MCU | STMicroelectronics

The STMicroelectronics STM8L101K3T3 is an ultra-low-power 8-bit microcontroller with a 16 MHz maximum clock, up to 8 KB of Flash program memory and a 32-LQFP 7 mm × 7 mm package. Designed around the STM8L low-power architecture, it combines compact processing capability with integrated peripherals for low-power embedded systems. An ultra-low-power microcontroller is a semiconductor category intended to minimize both active and standby energy consumption. Within the product hierarchy, the STM8L101K3T3 belongs to the STM8L family of 8-bit RISC microcontrollers and serves as a low-power system controller for battery-operated, portable and space-constrained products. Its low-power operating range is especially relevant to designs where the controller must remain responsive while consuming minimal energy between user actions or sensor events. Principal features include operation from 1.65 V to 3.6 V, a maximum CPU frequency of 16 MHz, up to 8 KB of Flash memory, 18 I/O ports and an enhanced STM8 CPU core capable of up to 16 MIPS at 16 MHz. The device family also provides multifunction timers, comparators, USART, SPI and I2C interfaces, allowing a compact design to handle timing, analog comparisons and serial communication without requiring several discrete interface components. The STM8 CPU core provides an 8-bit processing architecture optimized for compact embedded control rather than high-performance computing. At 16 MHz, the core can execute up to 16 million instructions per second, which is appropriate for state machines, sensor aggregation, actuator control and low-rate serial data handling. The 8 KB Flash limit means that firmware and constants must be planned carefully, particularly when application code, boot logic and lookup tables share the available program-memory budget. Typical uses include battery-powered sensor nodes, compact industrial controllers, home-automation endpoints, portable measurement instruments, low-power remote controls and embedded accessories. Its combination of serial interfaces supports sensors and transceivers connected through I2C or SPI, while USART can connect the controller to a host, modem or local configuration interface. The 32-LQFP package also offers enough peripheral connections for systems that need more I/O than a compact 20-pin package can provide. Designers should verify the exact pin assignments, alternate-function limitations and low-power mode behavior against the manufacturer documentation before finalizing the PCB. Decoupling should be placed directly at the supply pins, programming and reset access must remain available, and firmware should avoid unnecessary peripheral activity during sleep. These practices help preserve the device family's intended low-power behavior while preserving communication reliability. This product page consolidates the device's confirmed electrical specifications, package information, lifecycle status and application guidance with a practical comparison against the closest documented STM8L101K3 variants. It also highlights the restrictions involved when replacing one ordered MPN with another temperature-grade or packing option.

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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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