STM32L151VCT6D - 32MHz Cortex-M3 MCU 256KB Flash | STMicroelectronics
MPN: STM32L151VCT6D ✓ Hoạt độngSTM32L151VCT6D Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho STM32L151VCT6D — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32L151VCT6D (cùng hình factor và footprint) — khác nhau ở Core Architecture, DAC, EEPROM, Operational Amplifiers, Flash Memory.
STM32L152VCT6D
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L151VCT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32L151VCT6A
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32L151CCT6TR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32L151VCT6D Tỷ lệ tối đa & tính chất điện
| 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) |
| Hộp | 100-pin LQFP (14x14 mm) |
| Operating Voltage Range | 1.65 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -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 |
| Trạng thái RoHS | Compliant |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân STM32L151VCT6D
| Chân 1 | PE2 — GPIO PE2 / TRACECLK |
| Chân 2 | PE3 — GPIO PE3 / TRACED0 |
| Chân 3 | PE4 — GPIO PE4 / TRACED1 |
| Chân 4 | PE5 — GPIO PE5 / TRACED2 |
| Chân 5 | PE6 — GPIO PE6 / TRACED3 |
| Chân 6 | VBAT — Battery supply for RTC and backup registers |
| Chân 7 | PC13 — GPIO PC13 / Anti-tamper / RTC_TAMP1 |
| Chân 8 | PC14 — GPIO PC14 / OSC32_IN |
| Chân 9 | PC15 — GPIO PC15 / OSC32_OUT |
| Chân 10 | VSS — Ground |
| Chân 11 | VDD — Digital supply voltage |
| Chân 12 | PH0 — GPIO PH0 / HSE_IN |
| Chân 13 | PH1 — GPIO PH1 / HSE_OUT |
| Chân 14 | NRST — Reset input (active low) |
| Chân 15 | PC0 — GPIO PC0 / ADC_IN10 / OPAMP1_VINP |
| Chân 16 | PC1 — GPIO PC1 / ADC_IN11 / OPAMP1_VINM |
| Chân 17 | PC2 — GPIO PC2 / ADC_IN12 / OPAMP1_VOUT |
| Chân 18 | PC3 — GPIO PC3 / ADC_IN13 / OPAMP1_VINP |
| Chân 19 | VSSA — Analog ground |
| Chân 20 | VDDA — Analog supply voltage |
| Chân 21 | PA0 — GPIO PA0 / WKUP1 / ADC_IN0 / OPAMP3_VINP |
| Chân 22 | PA1 — GPIO PA1 / ADC_IN1 / OPAMP3_VINM |
| Chân 23 | PA2 — GPIO PA2 / USART2_TX / ADC_IN2 / OPAMP3_VOUT |
| Chân 24 | PA3 — GPIO PA3 / USART2_RX / ADC_IN3 / OPAMP3_VINP |
| Chân 25 | VSS — Ground |
| Chân 26 | VDD — Digital supply voltage |
| Chân 27 | PA4 — GPIO PA4 / SPI1_NSS / ADC_IN4 / OPAMP2_VINP |
| Chân 28 | PA5 — GPIO PA5 / SPI1_SCK / ADC_IN5 / DAC_OUT1 / OPAMP2_VINM |
| Chân 29 | PA6 — GPIO PA6 / SPI1_MISO / ADC_IN6 / DAC_OUT2 / OPAMP2_VOUT |
| Chân 30 | PA7 — GPIO PA7 / SPI1_MOSI / ADC_IN7 / OPAMP2_VINP |
| Chân 31 | PC4 — GPIO PC4 / ADC_IN14 |
| Chân 32 | PC5 — GPIO PC5 / ADC_IN15 |
| Chân 33 | PB0 — GPIO PB0 / ADC_IN8 / OPAMP1_VINM |
| Chân 34 | PB1 — GPIO PB1 / ADC_IN9 / OPAMP1_VOUT |
| Chân 35 | PB2 — GPIO PB2 / BOOT1 |
| Chân 36 | PE7 — GPIO PE7 |
| Chân 37 | PE8 — GPIO PE8 |
| Chân 38 | PE9 — GPIO PE9 |
| Chân 39 | PE10 — GPIO PE10 |
| Chân 40 | PE11 — GPIO PE11 |
| Chân 41 | PE12 — GPIO PE12 |
| Chân 42 | PE13 — GPIO PE13 |
| Chân 43 | PE14 — GPIO PE14 |
| Chân 44 | PE15 — GPIO PE15 |
| Chân 45 | PB10 — GPIO PB10 / I2C2_SCL |
| Chân 46 | PB11 — GPIO PB11 / I2C2_SDA |
| Chân 47 | VSS — Ground |
| Chân 48 | VDD — Digital supply voltage |
| Chân 49 | PB12 — GPIO PB12 / SPI2_NSS |
| Chân 50 | PB14 — GPIO PB14 / SPI2_MISO |
| Chân 51 | PB15 — GPIO PB15 / SPI2_MOSI |
| Chân 52 | PD8 — GPIO PD8 |
| Chân 53 | PD9 — GPIO PD9 |
| Chân 54 | PD10 — GPIO PD10 |
| Chân 55 | PD11 — GPIO PD11 |
| Chân 56 | PD12 — GPIO PD12 |
| Chân 57 | PD13 — GPIO PD13 |
| Chân 58 | VSS — Ground |
| Chân 59 | VDD — Digital supply voltage |
| Chân 60 | PD14 — GPIO PD14 |
| Chân 61 | PD15 — GPIO PD15 |
| Chân 62 | PC6 — GPIO PC6 / TIM3_CH1 / LCD_SEG24 |
| Chân 63 | PC7 — GPIO PC7 / TIM3_CH2 / LCD_SEG25 |
| Chân 64 | PC8 — GPIO PC8 / TIM3_CH3 / LCD_SEG26 |
| Chân 65 | PC9 — GPIO PC9 / TIM3_CH4 / LCD_SEG27 |
| Chân 66 | PA8 — GPIO PA8 / USART1_CK |
| Chân 67 | PA9 — GPIO PA9 / USART1_TX |
| Chân 68 | PA10 — GPIO PA10 / USART1_RX |
| Chân 69 | PA11 — GPIO PA11 / USB_DM |
| Chân 70 | PA12 — GPIO PA12 / USB_DP |
| Chân 71 | PA13 — GPIO PA13 / SWDIO |
| Chân 72 | VSS — Ground |
| Chân 73 | VDD — Digital supply voltage |
| Chân 74 | PA14 — GPIO PA14 / SWCLK |
| Chân 75 | PA15 — GPIO PA15 / JTDI |
| Chân 76 | PC10 — GPIO PC10 / UART4_TX / LCD_COM3 |
| Chân 77 | PC11 — GPIO PC11 / UART4_RX / LCD_COM4 |
| Chân 78 | PC12 — GPIO PC12 / UART5_TX / LCD_COM5 |
| Chân 79 | PD0 — GPIO PD0 / CAN1_RX |
| Chân 80 | PD1 — GPIO PD1 / CAN1_TX |
| Chân 81 | PD2 — GPIO PD2 / TIM3_ETR |
| Chân 82 | PD3 — GPIO PD3 / USART2_CTS |
| Chân 83 | PD4 — GPIO PD4 / USART2_RTS |
| Chân 84 | PD5 — GPIO PD5 / USART2_TX |
| Chân 85 | PD6 — GPIO PD6 / USART2_RX |
| Chân 86 | PD7 — GPIO PD7 / USART2_CK |
| Chân 87 | PB3 — GPIO PB3 / SWO / JTDO |
| Chân 88 | PB4 — GPIO PB4 / NJTRST |
| Chân 89 | PB5 — GPIO PB5 |
| Chân 90 | PB6 — GPIO PB6 / I2C1_SCL |
| Chân 91 | PB7 — GPIO PB7 / I2C1_SDA |
| Chân 92 | BOOT0 — Boot mode selection |
| Chân 93 | PB8 — GPIO PB8 / TIM4_CH3 |
| Chân 94 | PB9 — GPIO PB9 / TIM4_CH4 |
| Chân 95 | PE0 — GPIO PE0 / TIM4_ETR |
| Chân 96 | PE1 — GPIO PE1 |
| Chân 97 | VSS — Ground |
| Chân 98 | VDD — Digital supply voltage |
| Chân 99 | PB13 — GPIO PB13 / SPI2_SCK |
| Chân 100 | VSS — Ground |
Ứng dụng tiêu biểu
STM32L151VCT6D phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L151VCT6D — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Three integrated operational amplifiers (vsSTM32F103VCT6)
- True 8 KB EEPROM with 100k endurance (vsSTM32L051C8T3)
- USB 2.0 Full-Speed with on-chip PHY (vsSTM32L073RBT6)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
