STM8L151G4U6TR - 16MHz 16KB Ultra-Low-Power MCU | ST (Tape & Reel)
料号： STM8L151G4U6TR ✓ 量产中STM8L151G4U6TR 概述
A microcontroller is an integrated circuit that executes embedded control software and connects external peripherals through digital and analog I/O. In the device hierarchy, the STM8L151G4U6TR is an 8-bit MCU, part of the STM8L ultra-low-power family, and part of the broader embedded processor category. Its integrated flash memory stores firmware, while RAM supports execution state and application data.
The supplied product data identifies 16 KB of Flash, 2 KB of RAM, a 16 MHz maximum clock, 28 pins, and operation from 1.8 V to 3.6 V. Search results also associate the STM8L151x4/6 family with RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, and comparators. Exact peripheral availability, GPIO mapping, electrical limits, and low-power current figures must be checked against the manufacturer documentation for the exact ordering code.
At 16 MHz, the device provides substantially more processing headroom than lower-clock 8-bit designs while retaining the simplicity of the STM8 architecture. The compact 4 x 4 mm UFQFPN package supports space-constrained assemblies, but its fine pitch requires careful PCB layout, solder inspection, and adequate thermal management during reflow and production.
Typical uses include low-power sensor nodes, compact industrial controllers, battery-powered instruments, meter and keypad interfaces, communication modules, and small consumer appliances. Engineers should select peripheral functions by device variant rather than assuming every member of the STM8L151 family has identical resources. Firmware migration also depends on the exact pinout, clock tree, memory map, startup file, and development-tool configuration.
For PCB implementation, verify the exposed-pad connection, decoupling requirements, SWIM programming access, and all alternate-function assignments in the official package drawing. Validate low-power modes against the actual peripheral set because stopping timers, ADC conversion, serial interfaces, or LCD-related circuitry can change achievable standby current.
This page consolidates verified distributor specifications, family-level capabilities, sourcing references, and strict drop-in replacement findings. It separates confirmed STM8L151G4U6TR values from family-level information so engineers can make a defensible sourcing and design decision without assuming unverified electrical or lifecycle details.
直接替换替代料： STM8L151G4U6TR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM8L151G4U6TR （相同外形与封装尺寸） ——差异在于 Flash Memory, Package, Product Family, RAM.
STM8L151C8U6
✅ 直接替换联系询价
查看数据手册 →STM8L151G4Y3TR
✅ 直接替换📋 参考替代料（不在目录中）
STM8L101G3U6A
✅ 直接替换📋 参考替代料（不在目录中）
STM8L152G4U6
✅ 直接替换📋 参考替代料（不在目录中）
STM8L151G4U6TR 最大额定值与电气特性
| Product Type | 8-bit ultra-low-power microcontroller |
| Product Family | STM8L |
| Series | STM8L151x4/6 |
| 最大时钟频率 | 16 MHz |
| Flash Memory | 16 KB |
| RAM | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Core Architecture | 8-bit |
| 引脚数量 | 28 pins |
| 封装 | 28-pin UFQFPN (4 x 4 mm) |
| 安装类型 | Surface mount |
| I/O Ports | 41 |
| Lifecycle Stage | Active |
| Program Memory Type | Flash |
| RTC | Supported at family level |
| Communication Interfaces | USART, I2C, and SPI supported at family level |
| Analog and Timing Resources | ADC, DAC, comparators, timers, and LCD support at family level |
STM8L151G4U6TR 28-pin ufqfpn (4 x 4 mm) 引脚配置指南
STM8L151G4U6TR（28-pin ufqfpn (4 x 4 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM8L151G4U6TR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM8L151G4U6TR 适用于 6 应用s: Battery-Powered Sensor Node, Compact Industrial Controller, Battery-Powered Meter or Instrument, Smart Home Sensor Interface, Small Consumer Appliance Controller, Communication Module or Sensor Hub.
Battery-Powered Sensor Node
The STM8L151G4U6TR fits a compact sensor node when the application needs more program memory than an 8 KB-class MCU while retaining an 8-bit architecture. Its verified 16 MHz clock, 16 KB Flash, 2 KB RAM, and 1.8 V to 3.6 V supply range support local sampling, filtering, state management, and periodic communication. An engineer would use the low-power modes selectively, disable unused peripherals, and measure the complete duty cycle because verified sleep-current figures are unavailable. The trade-off is that the fine-pitch 28-pin UFQFPN package requires careful layout and production inspection.
推荐
Compact Industrial Controller
The STM8L151G4U6TR is appropriate for compact control panels where an 8-bit MCU must coordinate inputs, outputs, timing, and serial communications. Family-level resources identified in the verified material include timers, USART, I2C, SPI, ADC, and comparators, while the exact device supports 16 KB Flash and 2 KB RAM at 16 MHz. Firmware can use timers for deterministic scanning and serial interfaces for supervisory links. Before schematic capture, verify which peripheral instances are available on the 28-pin package and confirm I/O voltage limits under the 1.8 V to 3.6 V supply range.
推荐
Battery-Powered Meter or Instrument
The STM8L151G4U6TR can serve as the control core for a compact meter or instrument combining a display, keypad, and low-rate sensor acquisition. The verified 16 KB Flash provides room for measurement routines and user-interface logic, while the 2 KB RAM supports bounded buffers and control state. Family-level LCD and RTC capabilities make the platform relevant, provided the exact device variant confirms those resources and pin mappings. Use timer-based sampling, batch serial output, and controlled display updates to reduce energy, but validate achievable battery life through hardware measurements rather than unverified current claims.
推荐
Smart Home Sensor Interface
The STM8L151G4U6TR is suitable as a low-power interface controller for a connected home sensor when local processing and serial connectivity must share one MCU. Its 16 MHz operating speed supports responsive input handling, protocol formatting, and debounce logic without requiring a higher-bit processor. I2C and SPI family support can connect sensors or transceivers, while timers can manage periodic sampling. The design must confirm exact alternate-function pins and low-power behavior, and it should avoid enabling all serial blocks simultaneously if battery consumption is a priority.
推荐
Small Consumer Appliance Controller
The STM8L151G4U6TR can control a small appliance where the system needs button input, display feedback, timing, and low-cost firmware organization. Its 8-bit core and 16 KB Flash are appropriate for bounded control tasks, while the 2 KB RAM can support modest state machines and communication buffers. Family-level timer, ADC, and serial resources provide useful building blocks, but the exact peripheral mix must be verified. Place local decoupling close to the device and validate motor, relay, or mains-connected interface isolation independently of the MCU supply domain.
推荐
Communication Module or Sensor Hub
The STM8L151G4U6TR fits a small protocol hub when a module must consolidate sensor inputs and manage a serial link. The verified 16 MHz clock provides timing margin for framed communication, while USART, I2C, and SPI are identified at family level. A practical design can allocate one interface to a host and another to local sensors, with timers supporting response deadlines. Exact buffer depth, DMA availability, pin multiplexing, and peripheral availability were not supplied, so verify them in the manufacturer documentation and validate bus levels independently.
推荐
推荐产品汇总
工程参考数据： STM8L151G4U6TR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM8L151G4U6TRTR | STM8L151C8U6 | STM8L151G4Y3TR | STM8L101G3U6A | STM8L152G4U6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core Architecture | 8-bit | 8-bit STM8L | 8-bit STM8L | 8-bit STM8L | 8-bit STM8L | 8-bit STM8L |
关键差异点
- Higher verified program memory than the compared STM8L101G3U6A （对比 STM8L101G3U6A)
- Compact 28-pin surface-mount implementation （对比 STM8L151G4U6TRTR)
- 16 MHz verified operating class for embedded control （对比 STM8L101G3U6A)
设计说明
Use the official STM8L151G4U6TR package drawing before releasing the board. Confirm the 28-lead numbering, exposed-pad requirements, pad dimensions, solder-mask clearance, and land pattern for the exact UFQFPN ordering code. Place all required supply and bulk decoupling capacitors adjacent to their associated pins, and provide a clean ground reference to analog and digital returns. The supplied data does not include a verified pin map, so do not infer exposed-pad connectivity from a generic QFN drawing.
Design the supply path for the verified 1.8 V to 3.6 V operating range and check every external interface for signal-level compatibility. The MCU may be low power, but motors, relays, LEDs, and transceivers can create transient loads that must not be coupled directly into the device rail. Validate startup, brownout behavior, maximum decoupling capacitance, and analog reference requirements from the official electrical data before component selection.
Do not treat family-level STM8L151 capabilities as guaranteed on every ordering code without checking the exact device table. The verified snippets mention LCD, RTC, ADC, DAC, comparators, USART, I2C, SPI, and timers, while exact peripheral instances, alternate functions, and pin assignments were not provided. Generate firmware only against the exact MCU header, linker script, startup file, and programming configuration to prevent peripheral or memory-map mismatches.
合规信息
No verified product-specific compliance declarations were included in the supplied search data. Qualification status for industrial or automotive use remains unknown.
