STM8L151G4U6TR - 16MHz 16KB Ultra-Low-Power MCU | ST (Tape & Reel)
部品番号: STM8L151G4U6TR ✓ 生産中STM8L151G4U6TR 概要
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.
ドロップイン代替品: STM8L151G4U6TR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: STM8L151G4U6TR （同一形状・フットプリント） — 相違点: Flash Memory, Package, Product Family, RAM.
STM8L151C8U6
✅ ドロップイン価格はお問い合わせください
データシートを見る →STM8L151G4Y3TR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM8L101G3U6A
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM8L152G4U6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM8L151G4U6TR 最大定格＆電気的特性
| Product Type | 8-bit ultra-low-power microcontroller |
| Product Family | STM8L |
| Series | STM8L151x4/6 |
| 最大クロック周波数 | 16 MHz |
| Flash Memory | 16 KB |
| RAM | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Core Architecture | 8-bit |
| ピン数 | 28 pins |
| パッケージ | 28-pin UFQFPN (4 x 4 mm) |
| 実装タイプ | 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) ピン配置ガイド
STM8L151G4U6TR (28-pin ufqfpn (4 x 4 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: STM8L151G4U6TR.
詳細は データシート をご参照ください。
主な用途
STM8L151G4U6TR の用途: 6 件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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STM8L151G4U6TR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Higher verified program memory than the compared STM8L101G3U6A （vs STM8L101G3U6A)
- Compact 28-pin surface-mount implementation （vs STM8L151G4U6TRTR)
- 16 MHz verified operating class for embedded control （vs STM8L101G3U6A)
設計ノート
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.
コンプライアンス情報
No verified product-specific compliance declarations were included in the supplied search data. Qualification status for industrial or automotive use remains unknown.
