STM32L151VCT6D - 32MHz Cortex-M3 MCU 256KB Flash | STMicroelectronics
N.º da peça: STM32L151VCT6D ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 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 Visão geral
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.
Alternativas drop-in para STM32L151VCT6D — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STM32L151VCT6D (mesmo formato e footprint) — diferindo em Core Architecture, DAC, EEPROM, Operational Amplifiers, Flash Memory.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STM32L152VCT6D
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32L151VCT6
✅ Drop-In✓ Em estoque
$4.32 / unidade
Ver ficha técnica →STM32L151VCT6A
✅ Drop-In✓ Em estoque
$5.12 / unidade
Ver ficha técnica →STM32L151CCT6TR
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.1 / unidade
Ver ficha técnica →STM32L151VCT6D Classificações máximas e características elétricas
| 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) |
| Encapsulamento | 100-pin LQFP (14x14 mm) |
| Operating Voltage Range | 1.65 V to 3.6 V |
| Faixa de temperatura de operação | -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 |
| Status RoHS | Compliant |
| Tipo de montagem | Surface Mount |
Configuração de pinos do STM32L151VCT6D
| Pino 1 | PE2 — GPIO PE2 / TRACECLK |
| Pino 2 | PE3 — GPIO PE3 / TRACED0 |
| Pino 3 | PE4 — GPIO PE4 / TRACED1 |
| Pino 4 | PE5 — GPIO PE5 / TRACED2 |
| Pino 5 | PE6 — GPIO PE6 / TRACED3 |
| Pino 6 | VBAT — Battery supply for RTC and backup registers |
| Pino 7 | PC13 — GPIO PC13 / Anti-tamper / RTC_TAMP1 |
| Pino 8 | PC14 — GPIO PC14 / OSC32_IN |
| Pino 9 | PC15 — GPIO PC15 / OSC32_OUT |
| Pino 10 | VSS — Ground |
| Pino 11 | VDD — Digital supply voltage |
| Pino 12 | PH0 — GPIO PH0 / HSE_IN |
| Pino 13 | PH1 — GPIO PH1 / HSE_OUT |
| Pino 14 | NRST — Reset input (active low) |
| Pino 15 | PC0 — GPIO PC0 / ADC_IN10 / OPAMP1_VINP |
| Pino 16 | PC1 — GPIO PC1 / ADC_IN11 / OPAMP1_VINM |
| Pino 17 | PC2 — GPIO PC2 / ADC_IN12 / OPAMP1_VOUT |
| Pino 18 | PC3 — GPIO PC3 / ADC_IN13 / OPAMP1_VINP |
| Pino 19 | VSSA — Analog ground |
| Pino 20 | VDDA — Analog supply voltage |
| Pino 21 | PA0 — GPIO PA0 / WKUP1 / ADC_IN0 / OPAMP3_VINP |
| Pino 22 | PA1 — GPIO PA1 / ADC_IN1 / OPAMP3_VINM |
| Pino 23 | PA2 — GPIO PA2 / USART2_TX / ADC_IN2 / OPAMP3_VOUT |
| Pino 24 | PA3 — GPIO PA3 / USART2_RX / ADC_IN3 / OPAMP3_VINP |
| Pino 25 | VSS — Ground |
| Pino 26 | VDD — Digital supply voltage |
| Pino 27 | PA4 — GPIO PA4 / SPI1_NSS / ADC_IN4 / OPAMP2_VINP |
| Pino 28 | PA5 — GPIO PA5 / SPI1_SCK / ADC_IN5 / DAC_OUT1 / OPAMP2_VINM |
| Pino 29 | PA6 — GPIO PA6 / SPI1_MISO / ADC_IN6 / DAC_OUT2 / OPAMP2_VOUT |
| Pino 30 | PA7 — GPIO PA7 / SPI1_MOSI / ADC_IN7 / OPAMP2_VINP |
| Pino 31 | PC4 — GPIO PC4 / ADC_IN14 |
| Pino 32 | PC5 — GPIO PC5 / ADC_IN15 |
| Pino 33 | PB0 — GPIO PB0 / ADC_IN8 / OPAMP1_VINM |
| Pino 34 | PB1 — GPIO PB1 / ADC_IN9 / OPAMP1_VOUT |
| Pino 35 | PB2 — GPIO PB2 / BOOT1 |
| Pino 36 | PE7 — GPIO PE7 |
| Pino 37 | PE8 — GPIO PE8 |
| Pino 38 | PE9 — GPIO PE9 |
| Pino 39 | PE10 — GPIO PE10 |
| Pino 40 | PE11 — GPIO PE11 |
| Pino 41 | PE12 — GPIO PE12 |
| Pino 42 | PE13 — GPIO PE13 |
| Pino 43 | PE14 — GPIO PE14 |
| Pino 44 | PE15 — GPIO PE15 |
| Pino 45 | PB10 — GPIO PB10 / I2C2_SCL |
| Pino 46 | PB11 — GPIO PB11 / I2C2_SDA |
| Pino 47 | VSS — Ground |
| Pino 48 | VDD — Digital supply voltage |
| Pino 49 | PB12 — GPIO PB12 / SPI2_NSS |
| Pino 50 | PB14 — GPIO PB14 / SPI2_MISO |
| Pino 51 | PB15 — GPIO PB15 / SPI2_MOSI |
| Pino 52 | PD8 — GPIO PD8 |
| Pino 53 | PD9 — GPIO PD9 |
| Pino 54 | PD10 — GPIO PD10 |
| Pino 55 | PD11 — GPIO PD11 |
| Pino 56 | PD12 — GPIO PD12 |
| Pino 57 | PD13 — GPIO PD13 |
| Pino 58 | VSS — Ground |
| Pino 59 | VDD — Digital supply voltage |
| Pino 60 | PD14 — GPIO PD14 |
| Pino 61 | PD15 — GPIO PD15 |
| Pino 62 | PC6 — GPIO PC6 / TIM3_CH1 / LCD_SEG24 |
| Pino 63 | PC7 — GPIO PC7 / TIM3_CH2 / LCD_SEG25 |
| Pino 64 | PC8 — GPIO PC8 / TIM3_CH3 / LCD_SEG26 |
| Pino 65 | PC9 — GPIO PC9 / TIM3_CH4 / LCD_SEG27 |
| Pino 66 | PA8 — GPIO PA8 / USART1_CK |
| Pino 67 | PA9 — GPIO PA9 / USART1_TX |
| Pino 68 | PA10 — GPIO PA10 / USART1_RX |
| Pino 69 | PA11 — GPIO PA11 / USB_DM |
| Pino 70 | PA12 — GPIO PA12 / USB_DP |
| Pino 71 | PA13 — GPIO PA13 / SWDIO |
| Pino 72 | VSS — Ground |
| Pino 73 | VDD — Digital supply voltage |
| Pino 74 | PA14 — GPIO PA14 / SWCLK |
| Pino 75 | PA15 — GPIO PA15 / JTDI |
| Pino 76 | PC10 — GPIO PC10 / UART4_TX / LCD_COM3 |
| Pino 77 | PC11 — GPIO PC11 / UART4_RX / LCD_COM4 |
| Pino 78 | PC12 — GPIO PC12 / UART5_TX / LCD_COM5 |
| Pino 79 | PD0 — GPIO PD0 / CAN1_RX |
| Pino 80 | PD1 — GPIO PD1 / CAN1_TX |
| Pino 81 | PD2 — GPIO PD2 / TIM3_ETR |
| Pino 82 | PD3 — GPIO PD3 / USART2_CTS |
| Pino 83 | PD4 — GPIO PD4 / USART2_RTS |
| Pino 84 | PD5 — GPIO PD5 / USART2_TX |
| Pino 85 | PD6 — GPIO PD6 / USART2_RX |
| Pino 86 | PD7 — GPIO PD7 / USART2_CK |
| Pino 87 | PB3 — GPIO PB3 / SWO / JTDO |
| Pino 88 | PB4 — GPIO PB4 / NJTRST |
| Pino 89 | PB5 — GPIO PB5 |
| Pino 90 | PB6 — GPIO PB6 / I2C1_SCL |
| Pino 91 | PB7 — GPIO PB7 / I2C1_SDA |
| Pino 92 | BOOT0 — Boot mode selection |
| Pino 93 | PB8 — GPIO PB8 / TIM4_CH3 |
| Pino 94 | PB9 — GPIO PB9 / TIM4_CH4 |
| Pino 95 | PE0 — GPIO PE0 / TIM4_ETR |
| Pino 96 | PE1 — GPIO PE1 |
| Pino 97 | VSS — Ground |
| Pino 98 | VDD — Digital supply voltage |
| Pino 99 | PB13 — GPIO PB13 / SPI2_SCK |
| Pino 100 | VSS — Ground |
Aplicações típicas
STM32L151VCT6D é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32L151VCT6D — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- 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)
Notas de projeto
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.
Informações de conformidade
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.
