STM8L052R8T6 - 16MHz 64KB Ultra-Low-Power MCU | STMicroelectronics
N.º da peça: STM8L052R8T6 ✗ Fim de vida| Qtd. | Preço unitário | Total |
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STM8L052R8T6 Visão geral
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.
Alternativas drop-in para STM8L052R8T6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STM8L052R8T6 (mesmo formato e footprint) — diferindo em Flash Memory, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasSTM8L052R8T6 Classificações máximas e características elétricas
| Product Type | 8-bit ultra-low-power microcontroller |
| Product Series | STM8L EnergyLite high-density value line |
| Frequência máxima de clock | 16 MHz |
| Flash Memory | 64 KB (64K x 8) |
| Static RAM | 4 KB |
| Data EEPROM | 256 bytes |
| Tensão de alimentação de operação | 1.8 V to 3.6 V |
| Faixa de temperatura de operação | -40 °C to 85 °C |
| Low-Power Modes | 5 modes |
| Low-Power Run Current | 5.9 µA |
| Low-Power Wait Current | 3 µA |
| Active-Halt Current with Full RTC | 1.4 µA |
| Halt Current | 400 nA |
| Instruction Set | 8-bit CISC |
| Encapsulamento | 64-LQFP, 10 mm x 10 mm |
| Contagem de pinos | 64 pins |
| Tipo de montagem | Surface mount |
| Nominal Supply Configurations | 2.5 V and 3.3 V systems |
Guia de Configuração de Pinos do STM8L052R8T6 64-lqfp, 10 mm x 10 mm
Configuração de pinos para STM8L052R8T6 (pacote 64-lqfp, 10 mm x 10 mm). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para STM8L052R8T6.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STM8L052R8T6 é adequado para 6 aplicaçãos: Battery-Powered Environmental Sensors, Compact Energy and Utility Meters, Industrial Alarm and Security Controls, Low-Power Handheld Instruments, Small Motor and Valve Control, Smart Sensor and IoT Gateways.
Battery-Powered Environmental Sensors
The STM8L052R8T6 fits environmental sensing nodes because it combines a 16 MHz control core, 64 KB Flash, 4 KB SRAM, and 256-byte EEPROM with five low-power modes. Its verified Active-halt current with full RTC is 1.4 µA and Halt current is 400 nA, allowing the node to idle between temperature, humidity, or gas-sensor measurements. The MCU can preserve calibration data in EEPROM while using Low-power Run at 5.9 µA when periodic processing is required. Actual battery life remains dominated by sensor and regulator loads, wake frequency, and the test conditions associated with each published current.
Recomendado
Compact Energy and Utility Meters
The STM8L052R8T6 is suitable for compact metering electronics where periodic acquisition and low standby consumption are more important than continuous high-rate processing. Its 64 KB Flash provides room for application firmware, 4 KB RAM supports transient measurement processing, and the 256-byte EEPROM can retain configuration or calibration values. The 64-LQFP package offers ample pin access for sensors, displays, and communication interfaces. Firmware can use the verified 400 nA Halt state between readings and the 1.4 µA full-RTC Active-halt mode when periodic timekeeping must continue.
Recomendado
Industrial Alarm and Security Controls
The STM8L052R8T6 can manage compact industrial alarm panels, access-control peripherals, or distributed monitoring modules that combine sensor inputs with low-power background operation. Its 16 MHz speed supports responsive control tasks, while 64 KB Flash accommodates application code and 4 KB RAM provides working memory. The 1.8 V to 3.6 V supply range supports 2.5 V and 3.3 V industrial or embedded rails. Low-power Wait at 3 µA and Halt at 400 nA can reduce energy between events, provided the selected wake sources, debounce strategy, and communication timing meet the product requirements.
Recomendado
Low-Power Handheld Instruments
The STM8L052R8T6 suits low-power handheld instruments where a numerical display, keypad, and sensor interface must operate from a compact 3.3 V or 2.5 V platform. The 64-LQFP package provides enough I/O for segmented displays, controls, status LEDs, and serial communication without the footprint restrictions of a very small MCU. During idle periods, firmware can enter Low-power Wait at 3 µA or Halt at 400 nA; during interaction, the 16 MHz core provides headroom for display scanning and measurement control. Battery sizing must include display and interface loads rather than relying on MCU current alone.
Recomendado
Small Motor and Valve Control
The STM8L052R8T6 can serve as the supervisory controller in compact valve, latching-relay, or small-motor products where GPIO density and low idle demand matter. Its 64-pin LQFP package offers substantially more routing options than a small-lead-count package, and the 16 MHz maximum clock supports deterministic control loops for the verified operating range. Low-power modes can reduce consumption while waiting for a command, but motor drivers, relays, and protection components determine the system's real switching energy. PWM behavior, timer resources, and alternate-function mappings must be verified in the official pin and peripheral tables.
Recomendado
Smart Sensor and IoT Gateways
The STM8L052R8T6 fits local IoT coordination nodes that aggregate short sensor bursts and keep most hardware asleep. Its 64 KB Flash can host protocol and application logic, while 4 KB RAM is suitable for modest packet staging rather than high-bandwidth workloads. Verified Low-power Wait at 3 µA and Halt at 400 nA make duty-cycled operation practical, provided radio transmissions do not dominate current demand. The 64-LQFP footprint also supports local display or bus connections. Before choosing a communication companion, confirm voltage levels, timing, and whether firmware must handle wake-up latency.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM8L052R8T6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | 64-LQFP, 10 mm x 10 mm |
| Architecture | 8-bit CISC |
| Maximum Clock Frequency | 16 MHz |
| Flash Memory | 64 KB (64K x 8) |
| Static RAM | 4 KB |
| Data EEPROM | 256 bytes |
| Operating Supply Voltage | 1.8 V to 3.6 V |
| Operating Temperature Range | -40 °C to 85 °C |
| Lowest Verified Current | 400 nA in Halt |
| Low-Power Modes | 5 modes |
| RTC Support | Active-halt with full RTC at 1.4 µA |
Principais diferenciais
- Low standby-current granularity (vs Generic non-low-power 8-bit MCU options)
- Memory balance for compact embedded control (vs Smaller STM8L value-line devices)
- Board integration capacity (vs Lower-pin-count MCU packages)
Notas de projeto
Treat the published 5.9 µA, 3 µA, 1.4 µA, and 400 nA figures as mode-specific test results, not a complete product power budget. Firmware should disable unused peripherals and avoid continuous polling. Measure current at the system rail with the regulator quiescent current, pull resistors, sensors, communications, and indicator loads included. Use Halt only when the retained state and wake latency satisfy the product specification.
Follow the official schematic and layout guidance for supply decoupling and exposed routing requirements even though individual pin functions were not available in the verified excerpts. Place the required bypass capacitors close to their designated supply pins and provide a low-impedance ground return. The 10 mm x 10 mm LQFP has fine-pitch leads, so inspect solder joints and keep sensitive or high-current routes away from adjacent clocks and communication lines.
Do not infer a direct replacement from an STM8 family relationship or from a generic cross-reference result. A true substitute must reproduce the 64-pin electrical assignment, supply limits, timer resources, memory interface, bootloader assumptions, and interrupt behavior. Software written for STM8L052R8T6 may also require changes if instruction timing, peripherals, or option bytes differ. Require a schematic, firmware, and timing validation plan before authorizing a drop-in claim.
Informações de conformidade
The verified excerpts do not contain explicit compliance declarations. A third-party comparison page references RoHS and REACH for candidate parts, but no target-specific declaration was supplied, so all fields remain unknown.