STM8L151R6T6 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics
MPN： STM8L151R6T6 ✓ 啟用中STM8L151R6T6 概覽
An ultra-low-power microcontroller is a semiconductor device optimized to complete sensing, control, communication, and monitoring tasks while minimizing energy use during both active and standby operation. Within the device hierarchy, the STM8L151R6T6 belongs to the STM8L family, combines an 8-bit STM8 CPU core with embedded Flash memory, and provides a dedicated platform for low-power embedded control rather than high-performance computing.
The device provides 32 KB of Flash memory, 16 MHz maximum clock speed, and 41 I/O ports according to its product data. Its operating voltage extends from 1.8 V to 3.6 V, allowing use in battery-powered products, portable instruments, industrial controls, and consumer equipment. The LCD-related designation identifies its suitability for applications involving display interfaces, while its 64-LQFP package exposes a substantial number of pins for external sensors, actuators, communication interfaces, and mixed-signal connections.
Because this is an 8-bit MCU, its computational resources are best suited to control logic, state machines, data acquisition, display handling, and communication rather than intensive graphics, high-bandwidth signal processing, or large operating systems. The 16 MHz clock supports deterministic peripheral timing and responsive application code, while Flash memory provides enough space for embedded firmware and application routines.
Typical applications include low-power sensor nodes, compact industrial monitoring equipment, battery-operated meters, portable measurement products, display-equipped control panels, and compact consumer appliances. The combination of low-power operation, 32 KB Flash memory, and 41 I/O ports supports designs that need flexible external connectivity without requiring a large microcontroller package.
Board design should follow the manufacturer pinout and pin-description tables exactly. Pay particular attention to supply decoupling, unused-pin treatment, programming access, oscillator requirements, and exposed-pad or thermal-layout guidance applicable to the selected LQFP variant. Confirm the complete electrical limits and peripheral configuration in the manufacturer datasheet before releasing a production schematic.
This page organizes the verified electrical identity, lifecycle status, package data, and source links for STM8L151R6T6 while adding application-oriented design guidance, sourcing questions, and same-family replacement analysis. These engineering aids help buyers distinguish configuration and temperature-range changes before approving a substitution.
直接替換替代品，適用於 STM8L151R6T6 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STM8L151R6T6 （相同外形與佔位） — 差異在於 CPU Architecture, Product Type, Flash Memory, Package, Product Family.
STM8L151R8T3
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8L152R6T6
✅ 直接替換聯絡詢價
查看資料表 →STM8L151R6T3
✅ 直接替換📋 參考替代品（不在目錄中）
STM8L152R8T3
✅ 直接替換📋 參考替代品（不在目錄中）
STM8L151R8T6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8L151R6T6 最大額定值與電氣特性
| Product Type | 8-bit ultra-low-power microcontroller (MCU) |
| Manufacturer | STMicroelectronics |
| Maximum Clock Speed | 16 MHz |
| Flash Memory | 32 KB (32K x 8) |
| 工作電源電壓 | 1.8 V to 3.6 V |
| Number of I/O Ports | 41 ports |
| Package Type | 64-pin LQFP |
| Package Body Size | 10 mm x 10 mm |
| CPU Architecture | 8-bit STM8 enhanced core |
| Program Memory Type | Flash |
| LCD Support | Yes |
| 生命週期狀態 | Active |
STM8L151R6T6 10 mm x 10 mm 腳位配置指南
STM8L151R6T6（10 mm x 10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： STM8L151R6T6.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM8L151R6T6 適用於 6 應用s: Battery-Powered Sensor Node, Compact Industrial Monitoring Unit, Portable Measurement Instrument, LCD-Equipped Control Panel, Low-Power Communication Endpoint, Battery-Operated Utility Meter.
Battery-Powered Sensor Node
The STM8L151R6T6 fits battery-powered sensor nodes because its 1.8 V to 3.6 V supply range accommodates low-energy system rails while the ultra-low-power MCU architecture supports reduced operating demand. Its 16 MHz clock is sufficient for sensor sampling, state-machine control, and periodic communication without the overhead of a higher-power processor. The 32 KB Flash provides room for firmware, calibration logic, and communication routines. Place the MCU close to the sensor interface, maintain local supply decoupling, and validate wake-up timing and average current against the battery budget.
推薦
Compact Industrial Monitoring Unit
The STM8L151R6T6 is appropriate for compact industrial monitoring equipment that combines digital inputs, sensing, local indication, and communications. Its 41 I/O ports provide substantial connectivity for switches, sensors, status indicators, and interface signals, while 16 MHz processing supports deterministic control tasks. The 1.8 V to 3.6 V operating range supports regulated industrial rails. Use the 64-pin package to segregate sensitive inputs from switching outputs, follow the manufacturer grounding recommendations, and design isolation or protection networks according to the installation environment.
推薦
Portable Measurement Instrument
The STM8L151R6T6 can serve as the control processor in a portable measurement instrument where low power, compactness, and deterministic control are important. Its 32 KB Flash stores operating firmware and measurement sequencing, while the 16 MHz clock supports sampling control and local calculations. The LCD designation supports display-oriented designs, although the designer must verify the required segment count and display-driver resources. Power the MCU from the instrument's regulated low-voltage rail and select external components that satisfy the 1.8 V to 3.6 V operating range.
推薦
LCD-Equipped Control Panel
The STM8L151R6T6 is suitable for compact control panels and human-interface modules because the product family includes LCD support and offers 41 I/O ports for display, keypad, alarm, and communication functions. Its 8-bit architecture is appropriate for menu logic, state management, and simple data formatting, while 32 KB Flash provides space for the application firmware. Confirm LCD segment requirements and mapping in the manufacturer datasheet, allocate pins according to the exact ordering code, and use separate filtering for display and switching-input connections when required.
推薦
Low-Power Communication Endpoint
The STM8L151R6T6 works as a low-power communication endpoint for compact sensor, meter, and control products. The STM8 core can execute framing, addressing, timeout, and data-handling routines at up to 16 MHz, while the Flash memory supports protocol firmware and local configuration. Its low-voltage operation is useful in systems powered from small regulated or battery-derived rails. Select the communication transceiver separately, match signal levels to the MCU, and validate timing, standby consumption, and wake-up latency for the selected peripheral configuration.
推薦
Battery-Operated Utility Meter
The STM8L151R6T6 suits battery-operated utility and energy meters that must wake periodically, acquire readings, process status, and communicate through a low-power serial interface. Its 1.8 V to 3.6 V operating range supports compact regulated power systems, and its 32 KB Flash accommodates metering state machines and communication code. The 41 I/O ports provide flexibility for sensor inputs, pulse sensing, display control, and alarm outputs. Minimize always-on loads, use the manufacturer's power-mode guidance, and validate battery lifetime using the real measurement and reporting duty cycle.
推薦
推薦產品摘要
工程參考資料，適用於 STM8L151R6T6 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM8L151R8T3 | STM8L152R6T6 | STM8L151R6T3 | STM8L152R8T3 | STM8L151R8T6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 64-LQFP, 10 mm x 10 mm | 64-LQFP | 64-LQFP | 64-LQFP | 64-LQFP | 64-LQFP |
| Product Family | STM8L151 line | STM8L151 line | STM8L152 line | STM8L151 line | STM8L152 line | STM8L151 line |
主要差異化特點
- Exact 32 KB Flash configuration for the target design (對比STM8L151R8T3)
- Direct choice for an STM8L151-specific bill of materials (對比STM8L152R6T6)
- T6 ordering configuration for the target qualification plan (對比STM8L151R6T3)
- Consistent 64-pin LQFP mechanical footprint (對比STM8L152R8T3)
設計說明
Place all supply bypass capacitors directly beside the corresponding power and ground pins, with the shortest possible return path. Keep sensitive analog or sensor inputs away from switching-node and high-current traces, and use the manufacturer pin-description table to identify all power, ground, reset, programming, and clock assignments. Do not infer an unused-pin state or programming connection from a generic LQFP footprint.
Design the supply for the full 1.8 V to 3.6 V operating range while accounting for startup and transient behavior. Confirm regulator tolerance, load current, noise, and discharge behavior at the 1.8 V minimum. For battery-powered systems, calculate the average current from the actual active and standby duty cycle, then verify peripheral wake-up behavior against the manufacturer datasheet before fixing the power-budget requirement.
Use the exact 64-LQFP pin assignments and package dimensions from the manufacturer datasheet when creating the footprint and assembly drawings. Keep programming and reset access unobstructed for production programming. Maintain continuous ground-plane continuity beneath and around the device, route clock signals away from switching and communication edges, and follow the package's thermal and soldering guidance during assembly.
Do not treat every STM8L151 or STM8L152 ordering suffix as electrically identical. The R6, R8, T3, and T6 codes can represent differences in Flash density, family, temperature grade, or ordering configuration. Before substitution, compare the ordering-information table, memory capacity, temperature limits, peripheral availability, pin definition, and errata status. A matching package outline does not by itself establish drop-in equivalence.
合規資訊
The manufacturer datasheet and product page are the appropriate sources for environmental, material, and automotive qualification details; no definitive compliance status was established by the cited product summaries.
