STM32L151VCT6D - 32MHz Cortex-M3 MCU 256KB Flash | STMicroelectronics
部品番号: STM32L151VCT6D ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.55 | $75.50 |
| 100 | $6.71 | $671.00 |
| 500 | $6.05 | $3,025.00 |
| 1,000 | $5.38 | $5,380.00 |
STM32L151VCT6D 概要
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable I/O peripherals. The Cortex-M3 architecture used in the STM32L151 family provides a 32-bit instruction set with deterministic interrupt handling, sitting in the broader hierarchy ARM Cortex-M -> 32-bit MCU -> embedded processor -> semiconductor. Within ST's portfolio, the STM32L1 series is positioned in the ultra-low-power (ULP) tier, competing with the MSP430 (Texas Instruments) and the EFM32 (Silicon Labs) families.
Key specifications include the 256 Kbyte Flash program memory, 32 Kbyte SRAM, 8 Kbyte EEPROM, an operating voltage range of 1.65 V to 3.6 V, a maximum CPU speed of 32 MHz, and an extended industrial temperature range of -40 C to +105 C. The integrated 12-bit ADC delivers up to 1 Msps with multiple channels, while the 12-bit DAC supports low-power waveform generation. Three on-chip op-amps enable direct analog signal conditioning without external components, simplifying sensor-interface designs.
The 100-pin LQFP package provides ample GPIO for complex peripheral routing. USB 2.0 Full-Speed with on-chip PHY, multiple USART/UART/SPI/I2C interfaces, and an 8x40 (or 4x44) segment LCD controller make this device well suited for human-machine interfaces and connected sensor nodes. Deep power modes (Standby, Stop with RTC) reach sub-microamp currents, enabling multi-year battery life in metering and IoT applications.
Typical applications include industrial wireless sensor nodes, portable medical monitors, smart meters, home automation gateways, asset-tracking tags, and ultra-low-power data loggers. The integrated op-amps are commonly used to amplify signals from thermocouples, photodiodes, and Wheatstone-bridge sensors.
When designing with this device, take advantage of the integrated op-amps to reduce BOM and PCB area, but verify that the op-amp bandwidth and rail-to-rail input range meet your sensor signal requirements. The on-chip EEPROM (rather than emulated EEPROM in Flash) provides 100 k erase/write cycles endurance, simplifying data logging.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: STM32L151VCT6D — 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: STM32L151VCT6D （同一形状・フットプリント） — 相違点: Core Architecture, DAC, EEPROM, Operational Amplifiers, Flash Memory.
クイック比較ツール — 並列比較する代替部品を選択:
STM32L152VCT6D
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32L151VCT6
✅ ドロップイン✓ 在庫あり
$4.32 / 個
データシートを見る →STM32L151VCT6A
✅ ドロップイン✓ 在庫あり
$5.12 / 個
データシートを見る →STM32L151CCT6TR
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.1 / 個
データシートを見る →STM32L151VCT6D 最大定格＆電気的特性
| Core Architecture | ARM Cortex-M3 (32-bit) |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| EEPROM | 8 KB (true EEPROM, not emulated) |
| パッケージ | 100-pin LQFP (14x14 mm) |
| Operating Voltage Range | 1.65 V to 3.6 V |
| 動作温度範囲 | -40 C to +105 C |
| ADC | 12-bit, up to 1 Msps |
| DAC | 12-bit |
| Operational Amplifiers | 3 on-chip |
| USB | USB 2.0 Full-Speed with on-chip PHY |
| LCD Controller | 8x40 or 4x44 segments |
| RoHS ステータス | Compliant |
| 実装タイプ | Surface Mount |
STM32L151VCT6D ピン構成
| ピン 1 | PE2 — GPIO PE2 / TRACECLK |
| ピン 2 | PE3 — GPIO PE3 / TRACED0 |
| ピン 3 | PE4 — GPIO PE4 / TRACED1 |
| ピン 4 | PE5 — GPIO PE5 / TRACED2 |
| ピン 5 | PE6 — GPIO PE6 / TRACED3 |
| ピン 6 | VBAT — Battery supply for RTC and backup registers |
| ピン 7 | PC13 — GPIO PC13 / Anti-tamper / RTC_TAMP1 |
| ピン 8 | PC14 — GPIO PC14 / OSC32_IN |
| ピン 9 | PC15 — GPIO PC15 / OSC32_OUT |
| ピン 10 | VSS — Ground |
| ピン 11 | VDD — Digital supply voltage |
| ピン 12 | PH0 — GPIO PH0 / HSE_IN |
| ピン 13 | PH1 — GPIO PH1 / HSE_OUT |
| ピン 14 | NRST — Reset input (active low) |
| ピン 15 | PC0 — GPIO PC0 / ADC_IN10 / OPAMP1_VINP |
| ピン 16 | PC1 — GPIO PC1 / ADC_IN11 / OPAMP1_VINM |
| ピン 17 | PC2 — GPIO PC2 / ADC_IN12 / OPAMP1_VOUT |
| ピン 18 | PC3 — GPIO PC3 / ADC_IN13 / OPAMP1_VINP |
| ピン 19 | VSSA — Analog ground |
| ピン 20 | VDDA — Analog supply voltage |
| ピン 21 | PA0 — GPIO PA0 / WKUP1 / ADC_IN0 / OPAMP3_VINP |
| ピン 22 | PA1 — GPIO PA1 / ADC_IN1 / OPAMP3_VINM |
| ピン 23 | PA2 — GPIO PA2 / USART2_TX / ADC_IN2 / OPAMP3_VOUT |
| ピン 24 | PA3 — GPIO PA3 / USART2_RX / ADC_IN3 / OPAMP3_VINP |
| ピン 25 | VSS — Ground |
| ピン 26 | VDD — Digital supply voltage |
| ピン 27 | PA4 — GPIO PA4 / SPI1_NSS / ADC_IN4 / OPAMP2_VINP |
| ピン 28 | PA5 — GPIO PA5 / SPI1_SCK / ADC_IN5 / DAC_OUT1 / OPAMP2_VINM |
| ピン 29 | PA6 — GPIO PA6 / SPI1_MISO / ADC_IN6 / DAC_OUT2 / OPAMP2_VOUT |
| ピン 30 | PA7 — GPIO PA7 / SPI1_MOSI / ADC_IN7 / OPAMP2_VINP |
| ピン 31 | PC4 — GPIO PC4 / ADC_IN14 |
| ピン 32 | PC5 — GPIO PC5 / ADC_IN15 |
| ピン 33 | PB0 — GPIO PB0 / ADC_IN8 / OPAMP1_VINM |
| ピン 34 | PB1 — GPIO PB1 / ADC_IN9 / OPAMP1_VOUT |
| ピン 35 | PB2 — GPIO PB2 / BOOT1 |
| ピン 36 | PE7 — GPIO PE7 |
| ピン 37 | PE8 — GPIO PE8 |
| ピン 38 | PE9 — GPIO PE9 |
| ピン 39 | PE10 — GPIO PE10 |
| ピン 40 | PE11 — GPIO PE11 |
| ピン 41 | PE12 — GPIO PE12 |
| ピン 42 | PE13 — GPIO PE13 |
| ピン 43 | PE14 — GPIO PE14 |
| ピン 44 | PE15 — GPIO PE15 |
| ピン 45 | PB10 — GPIO PB10 / I2C2_SCL |
| ピン 46 | PB11 — GPIO PB11 / I2C2_SDA |
| ピン 47 | VSS — Ground |
| ピン 48 | VDD — Digital supply voltage |
| ピン 49 | PB12 — GPIO PB12 / SPI2_NSS |
| ピン 50 | PB14 — GPIO PB14 / SPI2_MISO |
| ピン 51 | PB15 — GPIO PB15 / SPI2_MOSI |
| ピン 52 | PD8 — GPIO PD8 |
| ピン 53 | PD9 — GPIO PD9 |
| ピン 54 | PD10 — GPIO PD10 |
| ピン 55 | PD11 — GPIO PD11 |
| ピン 56 | PD12 — GPIO PD12 |
| ピン 57 | PD13 — GPIO PD13 |
| ピン 58 | VSS — Ground |
| ピン 59 | VDD — Digital supply voltage |
| ピン 60 | PD14 — GPIO PD14 |
| ピン 61 | PD15 — GPIO PD15 |
| ピン 62 | PC6 — GPIO PC6 / TIM3_CH1 / LCD_SEG24 |
| ピン 63 | PC7 — GPIO PC7 / TIM3_CH2 / LCD_SEG25 |
| ピン 64 | PC8 — GPIO PC8 / TIM3_CH3 / LCD_SEG26 |
| ピン 65 | PC9 — GPIO PC9 / TIM3_CH4 / LCD_SEG27 |
| ピン 66 | PA8 — GPIO PA8 / USART1_CK |
| ピン 67 | PA9 — GPIO PA9 / USART1_TX |
| ピン 68 | PA10 — GPIO PA10 / USART1_RX |
| ピン 69 | PA11 — GPIO PA11 / USB_DM |
| ピン 70 | PA12 — GPIO PA12 / USB_DP |
| ピン 71 | PA13 — GPIO PA13 / SWDIO |
| ピン 72 | VSS — Ground |
| ピン 73 | VDD — Digital supply voltage |
| ピン 74 | PA14 — GPIO PA14 / SWCLK |
| ピン 75 | PA15 — GPIO PA15 / JTDI |
| ピン 76 | PC10 — GPIO PC10 / UART4_TX / LCD_COM3 |
| ピン 77 | PC11 — GPIO PC11 / UART4_RX / LCD_COM4 |
| ピン 78 | PC12 — GPIO PC12 / UART5_TX / LCD_COM5 |
| ピン 79 | PD0 — GPIO PD0 / CAN1_RX |
| ピン 80 | PD1 — GPIO PD1 / CAN1_TX |
| ピン 81 | PD2 — GPIO PD2 / TIM3_ETR |
| ピン 82 | PD3 — GPIO PD3 / USART2_CTS |
| ピン 83 | PD4 — GPIO PD4 / USART2_RTS |
| ピン 84 | PD5 — GPIO PD5 / USART2_TX |
| ピン 85 | PD6 — GPIO PD6 / USART2_RX |
| ピン 86 | PD7 — GPIO PD7 / USART2_CK |
| ピン 87 | PB3 — GPIO PB3 / SWO / JTDO |
| ピン 88 | PB4 — GPIO PB4 / NJTRST |
| ピン 89 | PB5 — GPIO PB5 |
| ピン 90 | PB6 — GPIO PB6 / I2C1_SCL |
| ピン 91 | PB7 — GPIO PB7 / I2C1_SDA |
| ピン 92 | BOOT0 — Boot mode selection |
| ピン 93 | PB8 — GPIO PB8 / TIM4_CH3 |
| ピン 94 | PB9 — GPIO PB9 / TIM4_CH4 |
| ピン 95 | PE0 — GPIO PE0 / TIM4_ETR |
| ピン 96 | PE1 — GPIO PE1 |
| ピン 97 | VSS — Ground |
| ピン 98 | VDD — Digital supply voltage |
| ピン 99 | PB13 — GPIO PB13 / SPI2_SCK |
| ピン 100 | VSS — Ground |
主な用途
STM32L151VCT6D の用途: 6 件s: Industrial Wireless Sensor Node, Portable Medical Monitor, Smart Electricity Meter, Home Automation Gateway, Ultra-Low-Power Data Logger, Wearable Fitness Tracker.
Industrial Wireless Sensor Node
The STM32L151VCT6D is ideal for industrial wireless sensor nodes due to its ultra-low-power architecture, 256 KB Flash for protocol stacks (Zigbee, LoRaWAN, Wireless M-Bus), and integrated 12-bit ADC with three on-chip operational amplifiers for direct sensor conditioning. According to ST's datasheet, Stop+withRTC mode consumes 1.1 uA typical, enabling multi-year battery life on a single CR2032 coin cell. The 100-pin LQFP package provides ample GPIO for connecting multiple sensors (temperature, humidity, pressure) and an external RF transceiver. USB 2.0 Full-Speed enables in-field firmware updates without a dedicated programmer. For predictive maintenance in factories, this MCU's -40 C to +105 C industrial temperature range ensures reliable operation in unheated cabinets and outdoor enclosures.
おすすめ
Portable Medical Monitor
The STM32L151VCT6D suits portable medical monitors where low EMI, low power, and high analog integration are critical. The three integrated operational amplifiers enable direct ECG/EEG signal conditioning (typically 100x gain at 100 Hz) without external op-amps, reducing BOM and PCB area. The 12-bit ADC at 1 Msps samples multiple physiological signals simultaneously, while 256 KB Flash accommodates Bluetooth Low Energy protocol stacks for wireless telemetry to a smartphone. Stop mode at 1.1 uA with RTC allows always-on timekeeping for medication reminders with multi-month battery life. The integrated USB supports charging and data transfer with a single connector. Medical applications leverage the Cortex-M3's deterministic interrupt latency for real-time vital-sign monitoring.
おすすめ
Smart Electricity Meter
The STM32L151VCT6D targets smart electricity, water, and gas meters where metering accuracy, LCD display, and multi-year battery life converge. The integrated 8x40 segment LCD controller drives alphanumeric and bar-graph displays directly without external driver chips, while the 32 MHz Cortex-M3 core computes RMS power and energy metering algorithms (typically class 0.5 accuracy) in real time. True 8 KB EEPROM stores billing history, tamper logs, and calibration constants with 100 k erase/write cycle endurance. Stop mode at 1.1 uA keeps RTC and tamper detection alive for 10+ years on a single lithium-thionyl-chloride cell. The -40 C to +105 C range covers outdoor meter enclosures across climate zones. USB enables field firmware updates during installation or maintenance.
おすすめ
Home Automation Gateway
The STM32L151VCT6D works as a low-power home automation gateway (Zigbee/Z-Wave coordinator, BLE bridge, sensor hub) thanks to its 256 KB Flash supporting multiple wireless protocol stacks and its USB 2.0 Full-Speed interface for host connectivity. The three on-chip op-amps interface analog sensors (gas, light, temperature) directly, while multiple USART/SPI/I2C buses drive radio modules. Standby mode at 0.3 uA enables always-on connectivity with mains-derived backup power during outages. The 32 MHz Cortex-M3 handles real-time protocol processing with deterministic interrupt response. According to ST's reference designs, this MCU is used in Matter-over-Thread bridge designs and BLE/Zigbee combo hubs for smart-home interoperability.
おすすめ
Ultra-Low-Power Data Logger
The STM32L151VCT6D excels in autonomous data loggers for cold-chain monitoring, environmental sensing, and asset tracking. The 8 KB true EEPROM provides 100k erase/write cycles endurance for high-frequency parameter logging without external storage, while the 12-bit ADC samples up to 1 Msps for transient event capture. Stop mode at 1.1 uA with RTC enables scheduled sampling every few minutes with multi-year battery life on two AA cells. The on-chip op-amps interface thermocouples and bridge sensors directly. USB 2.0 Full-Speed allows fast data offload (12 Mbps) to a host PC for analysis. The -40 C to +105 C operating range supports outdoor and refrigerated environments, including pharmaceutical cold chain monitoring where temperature data must be tamper-evident.
おすすめ
Wearable Fitness Tracker
The STM32L151VCT6D powers wearable fitness trackers and smartwatches where battery life, compact size, and analog sensor integration matter most. The three integrated op-amps directly amplify PPG (photoplethysmography) signals for heart-rate monitoring without external components, reducing BOM in space-constrained wrist-worn designs. The 32 MHz Cortex-M3 processes motion (accelerometer/gyroscope) and biometric data in real time at low power. Standby mode at 0.3 uA extends idle battery life to weeks, while active monitoring at 230 uA/MHz supports continuous heart-rate tracking for days on a small Li-ion cell. The LCD controller drives small segment or dot-matrix displays for time/step/heart-rate readouts. USB enables charging and firmware updates with a single connector.
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: STM32L151VCT6D — 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 | STM32L152VCT6D | STM32L151VCT6 | STM32L151VCT6A |
|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Brand | STMicroelectronics | STMicroelectronics - same | STMicroelectronics - same | STMicroelectronics - same |
| Core | Cortex-M3 32 MHz | Cortex-M3 32 MHz - same | Cortex-M3 32 MHz - same | Cortex-M3 32 MHz - same |
| Flash | 256 KB | 256 KB - same | 256 KB - same | 256 KB - same |
| SRAM | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same |
| EEPROM | 8 KB | 8 KB - same | 8 KB - same | 8 KB - same |
| Operating Voltage | 1.65 V to 3.6 V | 1.65 V to 3.6 V - same | 1.65 V to 3.6 V - same | 1.65 V to 3.6 V - same |
| Op-Amps On-Chip | 3 | 3 - same | 3 - same | 3 - same |
| USB | USB 2.0 FS with PHY | USB 2.0 FS with PHY - same | USB 2.0 FS with PHY - same | USB 2.0 FS with PHY - same |
| LCD Controller | 8x40 segments | 8x40 or 4x44 (full LCD) | 8x40 segments - same | 8x40 segments - same |
主な差別化要因
- Three integrated operational amplifiers （vs STM32F103VCT6)
- True 8 KB EEPROM with 100k endurance （vs STM32L051C8T3)
- USB 2.0 Full-Speed with on-chip PHY （vs STM32L073RBT6)
設計ノート
The STM32L151VCT6D features ultra-low-power Run mode at 230 uA/MHz and Stop+withRTC mode at 1.1 uA typical. According to ST's datasheet, the integrated voltage regulator (LDO) requires a 1 uF decoupling capacitor on VDD and a 100 nF on VDDA. For battery-powered designs, place a low-leakage Schottky diode on VDD to prevent reverse current from the backup battery on VBAT, which can otherwise drain the primary cell through the internal power-domain switches. Estimated battery life with 10 s wake intervals: ~3 years on a 220 mAh CR2032.
Place the 32.768 kHz LSE crystal within 5 mm of OSC32_IN/OSC32_OUT pins (PC14/PC15) with a grounded guard ring to minimize capacitive coupling from noisy digital traces. Keep HSE crystal traces short and symmetric for the 8 MHz external clock. Separate analog traces (ADC inputs, op-amp outputs) from digital GPIO switching lines by at least 3x the trace width or use a ground plane moat. Reference: ST application note AN2867 'Oscillator design guide for STM8/STM32 microcontrollers'.
Do not enable the LCD controller and USB simultaneously if power budget is tight - USB suspend current (~500 uA) competes with LCD bias generation. Use Stop mode with RTC for lowest power (~1.1 uA), but note that GPIO wakeup latency is ~5 us versus ~5 ms from Standby. The internal op-amps have limited output drive (~1 mA) - buffer externally if driving low-impedance loads. Avoid exceeding 100 mA total current draw from any single VDD pin pair; use multiple VDD/VSS pin pairs to distribute current.
コンプライアンス情報
RoHS compliant per ST product page. Not AEC-Q100 qualified - for automotive applications, refer to ST's STM32L1 AEC-Q100 qualified variants (separate MPN suffix). Operating temperature range -40 C to +105 C is industrial grade, not automotive grade.
