STM8L151G6U7 - 16MHz 32KB Ultra-Low-Power MCU | STMicroelectronics
MPN： STM8L151G6U7 ✓ 啟用中STM8L151G6U7 概覽
An ultra-low-power microcontroller is a semiconductor designed to minimize energy consumed during idle, sleep, and standby operation while still providing enough processing capability for control tasks. The STM8L family sits within the broader hierarchy of microcontroller, embedded processor, and semiconductor products. Its CISC architecture and integrated peripherals are intended to reduce external component count in low-speed sensing, metering, portable-instrumentation, and industrial-control designs.
Key verified characteristics include a maximum CPU frequency of 16 MHz, 32 KB of Flash organized as 32K x 8, and a 28-pin UFQFPN package. The supplied distributor listing also identifies 2 KB of EEPROM, while the manufacturer describes the STM8L151G6 as a medium-density member of the STM8L ultra-low-power 8-bit family. Its integrated ADC and DMA support makes it useful where sampled analog signals must be transferred without excessive processor involvement.
The STM8L151G6U7 architecture is tailored for low-power sensing and embedded control rather than high-throughput applications. Flash provides the main firmware area, integrated EEPROM supports nonvolatile data storage, and the ADC/DMA resources reduce the need for separate signal-acquisition components. The 4x4 mm UFQFPN footprint is suitable for space-constrained assemblies, although its fine pitch requires capable PCB assembly and careful land-pattern design.
Typical uses include battery-powered environmental sensors, compact metering instruments, low-speed industrial controllers, portable measurement equipment, and connected sensing nodes. The MCU is appropriate when energy efficiency, integrated data acquisition, and a small footprint matter more than a high-pin-count interface or a large program-memory budget. Designers should also evaluate the available peripheral mix and PCB assembly capability for the 0.6 mm-class package before releasing a design to production.
For implementation, follow the STMicroelectronics pin assignment and recommended decoupling guidance rather than relying on a generic QFN land pattern. Verify the exposed-pad connection, programming interface, oscillator arrangement, and ADC input routing against the official device documentation. Because the provided source snippets do not expose the complete pin table, electrical limits, or operating-temperature grades, those details require confirmation in the manufacturer datasheet before layout signoff.
This page combines verified manufacturer and distributor facts with package-level selection guidance, comparison criteria, sourcing links, and engineering-oriented usage analysis. It distinguishes confirmed device characteristics from unavailable details instead of estimating missing electrical values, helping engineers make an initial selection while preserving a traceable path to the official STM8L151G6 documentation.
直接替換替代品，適用於 STM8L151G6U7 — 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： STM8L151G6U7 （相同外形與佔位） — 差異在於 Flash Memory, Communication Interfaces, Package, Product Family, RTC.
STM8L151G6U6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8L151G6U6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8L151G8U6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM8L151G4U6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8L151G7U6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM8L151G6U7 最大額定值與電氣特性
| Product Type | 8-bit ultra-low-power microcontroller |
| Product Family | STM8L EnergyLite |
| Series | STM8L151 |
| Maximum CPU Frequency | 16 MHz |
| CPU Architecture | 8-bit CISC |
| Flash Memory | 32 KB (32K x 8) |
| EEPROM | 2 KB |
| Device Density | Medium-density |
| Peripheral Support | ADC and DMA |
| Operating Profile | Light-memory, low-speed, and micro-RAM profiles |
| Package Type | 28-pin UFQFPN |
| Package Dimensions | 4 x 4 x 0.6 mm |
| 安裝類型 | Surface mount |
| 供應電壓 | 2.5 V / 3.3 V |
STM8L151G6U7 4 x 4 x 0.6 mm 腳位配置指南
STM8L151G6U7（4 x 4 x 0.6 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： STM8L151G6U7.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM8L151G6U7 適用於 6 應用s: Battery-Powered Environmental Sensors, Compact Energy-Metering Instruments, Low-Speed Industrial Control Nodes, Portable Measurement and Diagnostic Devices, Smart Home and IoT Sensor Endpoints, USB-Connected Peripheral Controller.
Battery-Powered Environmental Sensors
The STM8L151G6U7 fits compact environmental sensors because it combines a 16 MHz 8-bit CPU with 32 KB of Flash, 2 KB of EEPROM, and ADC support in a 28-pin 4 x 4 mm UFQFPN package. Its STM8L ultra-low-power family positioning supports designs where the controller must alternate between measurement and low-power standby states. The device can retain calibration and configuration data in EEPROM while firmware occupies its 32 KB program area. Before finalizing a battery design, engineers should verify sleep current, active current, ADC accuracy, and wake-up time from the official datasheet because those values are not included in the supplied search excerpts.
Compact Energy-Metering Instruments
The STM8L151G6U7 is suitable for compact metering instruments that combine periodic analog sampling with local nonvolatile storage. Its verified 16 MHz CPU provides the throughput needed for measurement control, while the integrated ADC and DMA resources reduce the processing burden associated with transferring sampled data. The 32 KB Flash and 2 KB EEPROM provide separate areas for firmware and persistent configuration or accumulated readings. Its small 28-pin UFQFPN footprint also supports panel-mounted and handheld formats. Designers should confirm channel count, timer resources, accuracy, and supply limits against the manufacturer documentation before selecting it for a production meter.
Low-Speed Industrial Control Nodes
The STM8L151G6U7 can serve as the local controller in a low-speed industrial sensing node where deterministic control, compact size, and low standby consumption are more important than high computational throughput. Its 8-bit CISC CPU operates up to 16 MHz, while 32 KB of Flash supports embedded control firmware and 2 KB of EEPROM can preserve setup values. The ADC and DMA functions suit periodic process-variable acquisition. For factory deployment, engineers must verify the device's operating-temperature limits, ESD and EMC behavior, watchdog availability, and industrial qualification status because these details are not confirmed in the provided excerpts.
Portable Measurement and Diagnostic Devices
The STM8L151G6U7 supports portable measurement and diagnostic equipment where a 4 x 4 mm controller footprint and low-power operation can simplify enclosure design. The 28-pin UFQFPN package provides a compact surface-mount solution, while the 16 MHz CPU handles control logic, user-interface support, and data conditioning. With 32 KB of Flash, 2 KB of EEPROM, and integrated ADC and DMA, the device can consolidate several functions without requiring separate analog acquisition or data-storage components. Prototype testing should confirm LCD, sensor, and communication interface allocations because the supplied excerpts do not provide the complete peripheral or pin-mapping table.
Smart Home and IoT Sensor Endpoints
The STM8L151G6U7 is applicable to small IoT endpoints that sample local sensors and perform limited control or protocol-handling tasks. Its STM8L ultra-low-power architecture is relevant to devices expected to spend substantial time in low-power states, and the small UFQFPN package supports densely populated assemblies. The MCU provides 32 KB of Flash for firmware, 2 KB of EEPROM for local persistent data, and ADC/DMA resources for sensor acquisition. Engineers should evaluate wireless-module interface availability, low-power timer behavior, and brownout performance in the official documentation, as the verified snippets do not specify those electrical details.
USB-Connected Peripheral Controller
The STM8L151G6U7 can be considered for a compact USB-connected peripheral when its application does not require a large GPIO count. The 16 MHz 8-bit MCU is oriented toward embedded control rather than high-bandwidth data processing, while the 28-pin package limits the number of externally accessible signals. Its 32 KB Flash and 2 KB EEPROM support local firmware and configuration, and ADC/DMA resources can serve adjacent analog functions. Because USB electrical compliance, transceiver requirements, power consumption, and complete peripheral assignments are not established by the supplied data, this application requires a dedicated interface review and prototype validation before production release.
工程參考資料，適用於 STM8L151G6U7 — 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 | STM8L151G6U6 | STM8L151G6U | STM8L151G8U6 | STM8L151G4U6 | STM8L151G7U6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 28-pin UFQFPN, 4 x 4 x 0.6 mm | 28-pin UFQFPN, 4 x 4 x 0.6 mm | 28-pin UFQFPN, 4 x 4 x 0.6 mm | 28-pin UFQFPN, 4 x 4 x 0.6 mm | 28-pin UFQFPN, 4 x 4 x 0.6 mm | 28-pin UFQFPN, 4 x 4 x 0.6 mm |
| Maximum CPU Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| CPU Architecture | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB, 100% more | 16 KB, 50% less | 128 KB, 300% more |
主要差異化特點
- Matches the 32 KB Flash configuration in the same 28-pin footprint (對比STM8L151G6U6)
- Offers more program memory without changing the package footprint (對比STM8L151G8U6)
- Provides a practical firmware-capacity trade-off (對比STM8L151G4U6)
設計說明
Use the STMicroelectronics-recommended 28-pin UFQFPN land pattern rather than treating the package as a generic 28-pin QFN. The verified package dimensions are 4 x 4 x 0.6 mm, which indicates a fine-pitch assembly challenge. Confirm pad dimensions, exposed-pad geometry, solder-mask definition, paste volume, and reflow profile from the official package drawing before releasing PCB artwork.
Before assigning the STM8L151G6U7 to a battery-powered product, measure active, sleep, and standby current on prototype hardware under the intended clock, peripheral, and sensor conditions. The source excerpts establish the 2.5 V and 3.3 V association and STM8L low-power positioning, but they do not provide numeric current-consumption limits. Select the external supply and bypass capacitors using the official electrical requirements rather than inferred values.
Do not treat STM8L151K6U6 as a pin-compatible substitute for the STM8L151G6U7. The verified comparison identifies the K6U6 as a 32-pin UFQFPN device versus 28 pins for the G6U7, so substitution would require a PCB change. Likewise, a generic distributor cross-reference result does not prove identical pin functions, firmware support, timing, or electrical limits.
合規資訊
The supplied manufacturer and distributor excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These values must be confirmed from current STMicroelectronics material-compliance and product documentation.
