STM8L151C8T6 - 16MHz 64KB Ultra-Low-Power MCU | ST
MPN： STM8L151C8T6 ✓ 啟用中STM8L151C8T6 概覽
An ultra-low-power microcontroller is an integrated circuit designed to execute embedded-control functions while minimizing active and standby energy consumption. The STM8L family belongs to the hierarchy of microcontrollers, embedded processors, and semiconductors. It combines a general-purpose CPU, nonvolatile program memory, data EEPROM, timers, an RTC, LCD support, and communication peripherals in one package.
Key verified features of the STM8L151C8T6 include a 16 MHz maximum clock, 64 KB Flash, 4 KB RAM, and 2 KB data EEPROM. Its 1.8 V to 3.6 V operating range supports 1.8 V, 2.5 V, and 3.3 V supply arrangements. The 41 I/O pins provide substantial interface capacity for sensors, displays, actuators, and low-speed serial peripherals, while the 48-LQFP package provides a practical surface-mount footprint.
The STM8 architecture uses an 8-bit CISC core and targets embedded-control workloads rather than high-throughput application processing. The RTC supports timekeeping-oriented designs, LCD-related resources support display-oriented products, and the timer set supports periodic measurement, motor-control, and industrial timing functions. The 64 KB Flash capacity provides room for application firmware and boot logic, while EEPROM preserves small amounts of calibration or configuration data.
Typical applications include battery-operated sensors, compact industrial controllers, utility meters, access terminals, low-power display modules, and embedded appliances. The combination of low-voltage operation, 41 I/O ports, EEPROM, RTC, and LCD support is particularly useful when a design needs several control functions without using a larger microcontroller or external peripheral devices.
Designers should verify the complete pin configuration, peripheral availability, clock tree, and low-power modes against the STM8L151/152 documentation before layout. The 48-LQFP package also requires adequate solderable pad geometry and careful decoupling of the 1.8 V to 3.6 V supply. Exact timing, current consumption, and absolute electrical limits should be taken from the manufacturer documentation rather than inferred from distributor summaries.
This product page consolidates verified specifications, sourcing information, package details, application guidance, and a technically qualified replacement assessment. Unlike a basic distributor listing, it distinguishes confirmed drop-in suitability from related STM8 devices and explicitly identifies parameters that still require confirmation from the manufacturer documentation.
直接替換替代品，適用於 STM8L151C8T6 — 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： STM8L151C8T6 （相同外形與佔位） — 差異在於 Package, Core, Data EEPROM, Timers, Operating Temperature.
STM8L152C6T6
✅ 直接替換聯絡詢價
查看資料表 →STM8L151C8T6 最大額定值與電氣特性
| Microcontroller Type | 8-bit ultra-low-power MCU |
| 最大時脈頻率 | 16 MHz |
| Flash Memory | 64 KB |
| RAM | 4 KB |
| Data EEPROM | 2 KB |
| 工作電源電壓 | 1.8 V to 3.6 V |
| Supported Supply Levels | 1.8 V / 2.5 V / 3.3 V |
| I/O Ports | 41 ports |
| 封裝 | 48-LQFP (7 x 7 mm) |
| 腳位數 | 48 pins |
| 安裝類型 | Surface Mount |
| Architecture | 8-bit CISC |
| Real-Time Clock | Supported |
| LCD Support | Supported |
| Timers | Supported |
| Product Series | STM8L Series |
| Lifecycle Stage | Active |
| Packaging | Tray |
STM8L151C8T6 48-lqfp (7 x 7 mm) 腳位配置指南
STM8L151C8T6（48-lqfp (7 x 7 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： STM8L151C8T6.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM8L151C8T6 適用於 6 應用s: Battery-Powered Environmental Sensors, Utility Metering and Data Loggers, Low-Power LCD Instruments, Access and Security Terminals, Compact Industrial Control Modules, Low-Power Appliance Controls.
Battery-Powered Environmental Sensors
The STM8L151C8T6 fits battery-powered environmental monitoring because it combines an ultra-low-power 8-bit architecture, a 1.8 V to 3.6 V supply range, and 41 I/O ports in a 48-LQFP package. Its 64 KB Flash can hold acquisition, filtering, and communication firmware, while the 2 KB EEPROM preserves calibration parameters without consuming RAM. The 16 MHz clock provides useful processing headroom for periodic sensor sampling and local control. A designer should select the appropriate STM8L low-power mode and confirm its exact wake-time and current consumption from the family datasheet before setting the duty cycle.
Utility Metering and Data Loggers
The STM8L151C8T6 is suitable for utility meters and compact data loggers that must maintain calibration values and operate from low-voltage supplies. Its 64 KB Flash supports application firmware, the 4 KB RAM supports temporary measurement data, and the 2 KB data EEPROM is appropriate for serial numbers, calibration coefficients, and counters. RTC support improves designs that record events against real time rather than only counting intervals. With 41 I/O ports, the controller can accommodate pulse inputs, status indicators, communications, and sensor interfaces while the 48-LQFP package remains compatible with established surface-mount assembly methods.
Low-Power LCD Instruments
The STM8L151C8T6 works well in low-power LCD instruments because LCD support is included alongside an RTC and a broad 1.8 V to 3.6 V operating range. The 64 KB Flash can hold display formatting, measurement processing, and menu logic, while 41 I/O ports leave capacity for display control, keys, sensors, and communications. The 48-LQFP 7 x 7 mm package offers more I/O than a small leadless MCU without moving to a larger board. Engineers should still verify the specific LCD segment or matrix characteristics and low-power display behavior in the manufacturer documentation.
Access and Security Terminals
The STM8L151C8T6 can serve as the control MCU in access terminals where low voltage, compact packaging, and multiple I/O functions matter. Its 41 I/O ports can support readers, indicators, locking mechanisms, buttons, and supervisory signals, while 64 KB Flash accommodates protocol and application firmware. The RTC provides time-reference capability for event logging, and the 2 KB EEPROM can retain configuration identifiers. The device is not presented as a security-certified component, so deployments requiring formal security assurance must add the necessary hardware protections and perform their own threat analysis and validation.
Compact Industrial Control Modules
The STM8L151C8T6 is appropriate for compact industrial-control modules that require deterministic peripheral support without a high-performance processor. Timers support periodic sequencing and timing functions, while the 16 MHz 8-bit core handles supervisory logic and moderate control tasks. Its 41 I/O ports provide connectivity to sensors, relays, and local buses, and its 1.8 V to 3.6 V supply range supports embedded power systems. The 48-LQFP package is easy to inspect and repair during prototyping. Production designs must confirm operating-temperature limits, electrical characteristics, and ESD requirements that were not available in the verified summaries.
Low-Power Appliance Controls
The STM8L151C8T6 can control compact appliances that need local logic, persistent settings, and multiple discrete interfaces. Its 64 KB Flash accommodates feature firmware and calibration routines, while 4 KB RAM and 2 KB EEPROM divide volatile working data from persistent configuration. The RTC can schedule daily operations, and the timer resources can organize repetitive tasks such as motor cycles or indicator patterns. The 16 MHz clock and 41 I/O pins offer flexibility without moving to a larger MCU. Thermal dissipation is generally modest, but actual operating current and standby consumption should be measured for the selected voltage, clock, and peripheral configuration.
工程參考資料，適用於 STM8L151C8T6 — 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 | STM8L152C6T6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 48-LQFP (7 x 7 mm) | 48-LQFP (7 x 7 mm) |
| Flash Memory | 64 KB | 48 KB |
| Architecture | 8-bit CISC | 8-bit |
主要差異化特點
- Higher verified Flash capacity (對比STM8L152C6T6)
- Broader verified memory configuration (對比STM8L152C6T6)
- High verified I/O availability in a compact package (對比STM8L152C6T6)
設計說明
Use the manufacturer LQFP-48 land pattern and verify every pin assignment against the selected STM8L151/152 device before PCB release. The verified summaries establish the 48-pin, 7 x 7 mm LQFP format but do not expose the complete pinout. Place decoupling capacitors close to the supply pins, preserve adequate courtyard clearance for assembly, and route high-current or sensitive signals away from the switching edges of adjacent circuitry.
Design the supply for the documented 1.8 V to 3.6 V range and include local high-frequency bypass plus adequate bulk capacitance for the load and clock configuration. The target's 64 KB Flash and 2 KB EEPROM permit firmware and persistent calibration data to remain local. Do not infer the final regulator choice until the STM8L151C8T6 current consumption, brownout behavior, and active-versus-standby duty cycle are verified from the manufacturer documentation.
Do not approve a replacement solely because it is labeled STM8L151 or STM8L152. The STM8L152C6T6 offers 48 KB Flash versus the target's 64 KB, a 25% reduction, and shared family membership does not guarantee identical peripheral or pin assignments. Validate memory usage, interrupt mapping, timer channels, ADC behavior, LCD interfaces, communications peripherals, supply pins, and package drawing before substituting a different MPN.
Separate analog sensing paths from digital control and switching signals, and keep ground returns short beneath the MCU. Where the board supports crystals or timing-sensitive communication interfaces, follow the STM8L family reference layout and provide clean return paths. The 41 available I/O ports should be assigned early so that exposed test points, programming access, reset behavior, and boot-strapping requirements do not force late PCB changes.
合規資訊
The verified product summaries do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. No compliance status has been inferred from the manufacturer name, package, or product family.