STM8L151M8T6 - 16MHz 64KB Ultra-Low-Power MCU | STMicroelectronics
MPN： STM8L151M8T6 ✓ 啟用中STM8L151M8T6 概覽
An ultra-low-power microcontroller is an energy-optimized embedded controller designed to maintain useful processing capability while minimizing current consumption during active operation, idle states, and low-power modes. The STM8L15xx family provides an 8-bit STM8 architecture, integrated low-power peripherals, and options for LCD-oriented designs, making it practical for compact control panels, portable instruments, metering equipment, and sensor nodes.
Principal features of the STM8L151M8T6 include its 16 MHz enhanced STM8 CPU core, 64 KB Flash program memory, and support for three principal supply levels. The device is packaged in an 80-terminal LQFP for surface-mount assembly and is identified as an industrial-temperature-grade component. Its high-pin-count package also provides substantial I/O capacity for segmented displays, analog measurement channels, serial interfaces, and external sensing elements.
The STM8L151M8T6 belongs to a family of ultra-low-power devices with a common software and peripheral architecture. According to the STMicroelectronics STM8L151x6/8 family datasheet, the STM8L151x6/8 devices provide fully pin-to-pin, software, and feature compatibility with the STM8L152x6/8 and STM8L162x8 lines. This shared architecture allows application software and board-level pin planning to be reused across several STM8L variants.
Typical applications include battery-operated measurement instruments, compact HMI panels with LCD and key-scan functions, industrial sensor controllers, low-power communication nodes, and embedded access-control equipment. The STM8L151M8T6 is particularly suitable when designers need more GPIO and memory than smaller STM8L packages provide while retaining the low-power characteristics of the 8-bit family.
When designing a PCB around the STM8L151M8T6, follow the pin-definition and package-outline drawings in the manufacturer datasheet rather than inferring connections from another STM8L part. Confirm that the selected crystal, LCD segment routing, analog input ranges, and decoupling network match the selected operating mode and supply voltage.
This page combines manufacturer family documentation, distributor listing data, drop-in package comparisons, and practical design guidance to support component selection, schematic planning, and sourcing. It also identifies the principal memory, package, voltage, and low-power differences that matter when comparing the STM8L151M8T6 with related STM8L devices.
直接替換替代品，適用於 STM8L151M8T6 — 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： STM8L151M8T6 （相同外形與佔位） — 差異在於 Package, Product Type, Flash Memory, LCD Driver, Number of I/O Pins.
STM8L151R8T6
✅ 直接替換聯絡詢價
查看資料表 →STM8L152M8T6
✅ 直接替換聯絡詢價
查看資料表 →STM8AL31E8ATAX
✅ 直接替換📋 參考替代品（不在目錄中）
STM8L152R8T6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8L162M8T6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8L151M8T6 最大額定值與電氣特性
| Manufacturer | STMicroelectronics |
| Product Type | 8-bit ultra-low-power microcontroller |
| 最大時脈頻率 | 16 MHz |
| CPU Architecture | 8-bit STM8 CISC |
| Flash Memory | 64 KB |
| Program Memory Organization | 64K x 8 |
| Supply Voltage Options | 1.8 V, 2.5 V, or 3.3 V |
| 封裝 | 80-pin LQFP |
| Package Dimensions | 14 x 14 mm |
| 安裝類型 | Surface Mount |
| Terminal Count | 80 pins |
| Terminal Form | Gull wing |
| Package Shape | Square |
| Temperature Grade | Industrial |
| LCD Support | LCD-compatible family variant |
| Operating Mode | Ultra-low-power |
STM8L151M8T6 square 腳位配置指南
STM8L151M8T6（square 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： STM8L151M8T6.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM8L151M8T6 適用於 6 應用s: Battery-Powered Sensor Node, LCD Instrument Control Panel, Industrial Sensor Controller, Portable Environmental Monitor, Low-Power Access-Control Terminal, Embedded Data Acquisition Module.
Battery-Powered Sensor Node
The STM8L151M8T6 fits a compact battery-powered sensing node because its STM8L ultra-low-power architecture operates from 1.8 V, 2.5 V, or 3.3 V, while 64 KB of Flash provides room for acquisition, filtering, and local control firmware. The 80-pin LQFP also simplifies connection of sensors, status indicators, and a serial interface without a very large footprint. Firmware should disable unused peripherals, select the lowest suitable operating mode, and use the family sleep features to control standby demand.
推薦
LCD Instrument Control Panel
The STM8L151M8T6 is well matched to an LCD instrument panel where a segmented display, keypad, and several sensors share one controller. Its 80 pins provide substantially more connection options than the smaller STM8L packages, and the STM8L151 family includes LCD-oriented variants for display-intensive products. Use the datasheet alternate-function map to avoid conflicts between LCD outputs and other peripherals, then select capacitors and bias components according to the manufacturer reference circuit.
推薦
Industrial Sensor Controller
An industrial sensor controller can use the STM8L151M8T6 to combine analog sensing, digital inputs, and low-power logic in one 80-pin LQFP device. Its 16 MHz 8-bit core handles protocol management and control logic, while 64 KB of Flash supports device drivers and application code. The listed industrial temperature grade supports industrial equipment positioning, although the exact operating-temperature limits and electrical characteristics must be confirmed in the manufacturer datasheet.
推薦
Portable Environmental Monitor
The STM8L151M8T6 can supervise temperature, humidity, light, or gas sensors in a portable environmental monitor. Its 1.8 V operation supports energy-conscious battery designs, and the low-power MCU architecture reduces the processing overhead associated with periodic measurement and duty-cycled communication. The 80-pin package leaves ample pins for sensor power control, calibration references, status LEDs, and an optional display, while 64 KB of Flash accommodates table-driven compensation and sensor-driver code.
推薦
Low-Power Access-Control Terminal
The STM8L151M8T6 suits an electronic lock or access-control terminal that combines a keypad, LED indication, a low-power LCD, and optional network or proximity-sensor interfaces. The STM8L151 family's LCD capability and generous GPIO count reduce the need for additional interface ICs, while the low-power design supports battery operation. Secure boot, credential handling, and communications should be implemented in the application layer and validated against the product's security requirements.
推薦
Embedded Data Acquisition Module
The STM8L151M8T6 can serve as the local controller in a compact data-acquisition module that samples several inputs and conditions the results before transmission. Its 16 MHz clock provides adequate processing capability for an 8-bit control architecture, and the 80-pin LQFP allows dedicated connections for analog channels, digital status, and a communications UART or SPI interface. Use the manufacturer pin table to assign analog functions and pay particular attention to grounding, reference voltage, and input filtering.
推薦
推薦產品摘要
工程參考資料，適用於 STM8L151M8T6 — 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 | STM8L151R8T6 | STM8L152M8T6 | STM8AL31E8ATAX | STM8L152R8T6 | STM8L162M8T6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 80-pin LQFP, 14 x 14 mm | 80-pin LQFP | 80-pin LQFP | 80-pin LQFP | 80-pin LQFP | 80-pin LQFP |
| CPU Architecture | 8-bit STM8 CISC | 8-bit STM8 | 8-bit STM8 | 8-bit STM8 | 8-bit STM8 | 8-bit STM8 |
| Maximum Clock Frequency | 16 MHz | 16 MHz class | 16 MHz class | 16 MHz | 16 MHz class | 16 MHz class |
| Power Management Class | STM8L ultra-low-power | STM8L ultra-low-power | STM8L ultra-low-power | STM8 ultra-low-power | STM8L ultra-low-power | STM8L ultra-low-power |
主要差異化特點
- Same-family alternative with expanded RAM organization (對比STM8L151R8T6)
- Additional STM8L152 peripheral capability without changing the package (對比STM8L152M8T6)
- Cross-family STM8 alternative with matching core clock and Flash (對比STM8AL31E8ATAX)
設計說明
Select the operating supply from the 1.8 V, 2.5 V, and 3.3 V options listed for this device and verify every external peripheral shares the same domain or has suitable level translation. Place the manufacturer-recommended bypass capacitors directly beside the supply pins, and route the ground return without splits under high-current switching loads. For battery designs, disable unused peripherals in software and verify the sleep-mode current with the final sensor and communications hardware.
Use the 80-pin LQFP land pattern and package drawings from the manufacturer documentation rather than generating the footprint solely from nominal body dimensions. Confirm the exposed pad, lead pitch, solder-mask clearance, and paste stencil against the selected package revision. The 14 x 14 mm body supports compact layouts, but the fine-pitch gull-wing leads still require careful paste-volume control and adequate thermal relief around supply pins.
Assign analog inputs, LCD segment outputs, oscillator pins, programming signals, and digital GPIO from the datasheet pin-definition table before placing decoupling and signal-routing components. Keep sensitive sensor inputs away from switching nodes and high-current return paths. When using an external crystal or resonator, follow the manufacturer layout guidance for the ground guard and placement to reduce oscillator pickup and startup problems.
Do not substitute an STM8L or STM8AL device solely because the package has 80 pins. Verify Flash, RAM, supply range, peripheral functions, alternate-function mappings, interrupt assignments, and software driver compatibility. The family datasheet identifies STM8L151x6/8, STM8L152x6/8, and STM8L162x8 as pin-to-pin, software, and feature compatible, but devices outside that stated set require a separate engineering review.
合規資訊
The industrial temperature grade is identified in the product listing, but no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were provided. AEC-Q100 is marked not applicable because the listed industrial designation does not itself constitute automotive qualification.