STM8L151F2P6 - 16MHz 4KB Ultra-Low-Power MCU | ST
部品番号: STM8L151F2P6 ✓ 生産中STM8L151F2P6 概要
An ultra-low-power microcontroller is an embedded controller designed to maintain useful processing, sensing, and communication functions while minimizing energy use during idle, sleep, and stop operating states. Within the product hierarchy, the STM8L151F2P6 is an 8-bit MCU, an embedded processing IC, and a member of the STM8L EnergyLite family. This makes it suitable for compact, battery-operated or energy-conscious systems in which low active and standby power are more important than high arithmetic throughput.
Key device attributes include 16 MHz operation, 4 KB Flash, 1 KB RAM, a 1.8 V to 3.6 V supply range, and a 20-pin TSSOP package. The enhanced STM8 CPU core can execute up to 16 MIPS at 16 MHz, giving embedded control loops more scheduling capacity than lower-frequency 8-bit implementations. Its low-density integration also helps reduce board area, external memory requirements, and system complexity for compact control products.
The STM8L151F2P6 belongs to a CISC-based STM8 architecture optimized for efficient control code rather than application-processor workloads. Its 4 KB Flash stores firmware while 1 KB RAM supports working state, stack operations, and peripheral buffering. The manufacturer product page identifies the STM8L151F2/3 low-density family as an ultra-low-power MCU family, while distributor data confirms the specific device's 8-bit architecture, 16 MHz clock, memory configuration, and package format.
Typical applications include low-power sensor nodes, compact industrial controls, battery-powered instruments, energy-metering peripherals, home automation endpoints, and embedded monitoring modules. The 20-pin TSSOP package is particularly useful where a conventional large QFP footprint would be unnecessary but exposed-package or fine-pitch assembly would also be undesirable. Firmware and peripheral configuration should still be checked against the complete manufacturer datasheet before production use.
Designers should account for the 1.8 V to 3.6 V operating range, verify that every connected sensor and actuator supports the selected rail, and confirm the exact pin functions in the manufacturer pinout. Low-power operation depends on firmware, clock configuration, peripheral activity, and board leakage, so measured current cannot be inferred from the headline 16 MHz specification alone.
This product record combines the verified manufacturer and distributor information, a lifecycle assessment, procurement pricing, family alternatives, and practical selection guidance. It is intended to help engineers identify whether the 20-pin STM8L151F2P6 offers the required balance of Flash, RAM, speed, voltage, package size, and ultra-low-power behavior before beginning PCB and firmware development.
ドロップイン代替品: STM8L151F2P6 — 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: STM8L151F2P6 （同一形状・フットプリント） — 相違点: Flash Memory.
STM8L151F3P6
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →STM8L151F4P6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM8L151F6P6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM8L151F1P6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM8L101F2P6TR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM8L151F2P6 最大定格＆電気的特性
| Microcontroller Type | 8-bit ultra-low-power MCU |
| 最大クロック周波数 | 16 MHz |
| Maximum CPU Performance | 16 MIPS at 16 MHz |
| Flash Memory | 4 KB |
| RAM | 1 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| CPU Architecture | Enhanced STM8 CISC core |
| Program Memory Type | Flash |
| I/O Ports | 41 |
| Package Type | 20-pin TSSOP |
| 実装タイプ | Surface mount |
| Nominal Supply | 2.5 V or 3.3 V |
| Product Series | STM8L151F2/3 ultra-low-power family |
| ライフサイクル状態 | Active |
STM8L151F2P6 20-pin tssop ピン配置ガイド
STM8L151F2P6 (20-pin tssop 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: STM8L151F2P6.
詳細は データシート をご参照ください。
主な用途
STM8L151F2P6 の用途: 6 件s: Battery-Powered Sensor Nodes, Compact Industrial Control Modules, Home Automation Endpoints, Energy Metering Peripherals, Portable Medical Monitoring Modules, Low-Power Communication Accessories.
Battery-Powered Sensor Nodes
The STM8L151F2P6 fits compact sensor nodes because it combines a 1.8 V to 3.6 V operating range with the ultra-low-power positioning of the STM8L151F2/3 family. Its 16 MHz enhanced STM8 CISC core can execute up to 16 MIPS, allowing acquisition, filtering, and local decision logic to share one MCU without an external processor. The 4 KB Flash holds a compact firmware image and the 1 KB RAM provides working space for samples and stack variables. Designers should enable only required peripherals, select an appropriate low-power clock configuration, and measure sleep current on the finished board because firmware and sensor leakage determine the final battery life.
おすすめ
Compact Industrial Control Modules
The STM8L151F2P6 is appropriate for compact industrial control modules that monitor inputs and manage simple actuators under a constrained power budget. At up to 16 MHz and 16 MIPS, the MCU provides enough throughput for state machines, debouncing, timing, and protocol servicing while retaining the straightforward programming model of an 8-bit CISC core. Its 20-pin TSSOP package reduces board footprint compared with many larger MCUs, while the 1.8 V to 3.6 V range supports low-voltage industrial rails. Firmware must verify actual pin multiplexing and peripheral availability, and production designs should include watchdog, reset, and fault-response behavior appropriate to the controlled equipment.
おすすめ
Home Automation Endpoints
The STM8L151F2P6 suits compact home-automation endpoints that coordinate switches, sensors, or remote relays through a low-power serial connection. Its 4 KB Flash is adequate for focused control firmware, while 16 MHz execution supports responsive event handling and periodic communication tasks. The TSSOP-20 package can simplify board assembly in space-constrained products, and the 1.8 V to 3.6 V supply range allows operation from low-voltage power systems. The memory capacity does not support large protocol stacks or extensive buffering, so designs should use lean firmware and may select the 8 KB Flash STM8L151F4P6 when application code and data handling exceed the target device's limits.
おすすめ
Energy Metering Peripherals
The STM8L151F2P6 can be used in a metering peripheral that accumulates measurements, tracks operating intervals, and reports data through a low-speed communications interface. Its 16 MHz STM8 CISC core provides deterministic handling for pulse counting, ADC-related tasks, and status updates, while 1 KB RAM accommodates counters and short-term data buffers. The low-density 20-pin TSSOP package helps reduce instrument size, and operation down to 1.8 V supports low-energy designs. Accurate metering requires calibrated analog front-end circuitry, verified reference behavior, and firmware that minimizes measurement error; the MCU specification alone does not determine metrology performance.
おすすめ
Portable Medical Monitoring Modules
The STM8L151F2P6 can support compact medical monitoring modules where low power, small size, and deterministic embedded control are priorities. The 1.8 V to 3.6 V operating range and low-density TSSOP-20 package fit portable instruments, while the 16 MHz core can service sensor sampling, filtering, status LEDs, and a simple user interface. The MCU should not be assumed to provide medical certification, and analog accuracy, isolation, alarm behavior, and electrical safety must be addressed by the complete system. Firmware should include watchdog recovery, controlled shutdown, and data-integrity checks appropriate to the intended monitoring function.
おすすめ
Low-Power Communication Accessories
The STM8L151F2P6 is well suited to a small protocol adapter or communication accessory that needs local configuration, status reporting, and low standby consumption. Its 16 MIPS maximum performance provides headroom for serial framing and event processing, while 4 KB Flash and 1 KB RAM constrain the supported protocol complexity. The TSSOP-20 package can be placed close to a wireless or wired communication module to minimize board area, although high-speed RF layouts should follow the transceiver's reference design. Engineers must confirm UART, SPI, or I2C availability, pin mappings, baud-rate tolerance, and timing in the complete manufacturer documentation.
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: STM8L151F2P6 — 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 | STM8L151F3P6 | STM8L151F4P6 | STM8L151F6P6 | STM8L101F2P6TR |
|---|---|---|---|---|---|
| Package | TSSOP-20 | TSSOP-20 | TSSOP-20 | TSSOP-20 | TSSOP-20 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Flash or ROM | 4 KB Flash | 4 KB Flash | 8 KB Flash | 32 KB Flash | 4 KB ROM |
| RAM | 1 KB | 2 KB | 4 KB | 8 KB | 1 KB |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V or 2.5 V |
| Architecture | Enhanced STM8 8-bit CISC core | Enhanced STM8 8-bit CISC core | Enhanced STM8 8-bit CISC core | Enhanced STM8 8-bit CISC core | STM8L 8-bit CISC core |
| Program Memory Type | Flash | Flash | Flash | Flash | ROM |
主な差別化要因
- Exact combination of low-density memory and compact packaging （vs STM8L151F1P6)
- Additional RAM without moving away from the F2/3 family architecture （vs STM8L151F2P6)
- Flash-oriented upgrade path within the same package family （vs STM8L151F2P6)
- Verified Flash program memory in the ultra-low-power family （vs STM8L101F2P6TR)
設計ノート
Confirm the complete power budget before assigning the MCU to a battery or low-energy rail. The verified 1.8 V to 3.6 V supply range supports low-voltage operation, but average current depends on clock frequency, active time, sleep mode, peripheral load, and board leakage. Measure the assembled product with the sensor and communications hardware in their expected states. Estimated: if the MCU rail current is I_mcu and the average rail voltage is V_rail, the MCU energy per interval is approximately V_rail × I_mcu × t; this is a design estimate and not a manufacturer current specification.
Route the STM8L151F2P6 as a compact, low-speed digital component rather than treating its 16 MHz capability as a high-speed signal-integrity requirement. Keep the device close to its decoupling network, provide short ground-return paths, and separate noisy switching or relay paths from sensitive measurement inputs. Because the supplied data does not include verified individual pin names, use the manufacturer package drawing and pin-definition tables when assigning power, ground, reset, programming, clock, and I/O connections. Validate the final layout against the reference design for the selected board configuration.
Do not assume that equal TSSOP-20 outlines guarantee a drop-in MCU replacement. The STM8L101F2P6TR comparison shows similar headline memory and package information but differs in program-memory type and listed supply choices, while higher STM8L151 variants differ in Flash and RAM capacity. Review reset behavior, alternate-function mapping, timer channels, communication peripherals, clock tree, startup time, and pin electrical limits before substitution. Bootloader and firmware changes may also be required even when the mechanical footprint remains unchanged.
Plan firmware and memory use around the verified 4 KB Flash and 1 KB RAM limits. Reserve stack space for interrupts and nested calls, and avoid large local buffers or unconstrained recursion. The STM8L151F3P6 offers additional RAM, while the F4 and F6 options provide more Flash, but increasing memory does not remove the need to measure real RAM consumption. Use compiler map reports and worst-case interrupt-stack analysis rather than estimating usage from source-code size alone.
コンプライアンス情報
The supplied manufacturer and distributor results confirm an active lifecycle status but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals compliance. No compliance status has been assumed.