STMicroelectronics STM32L151RCT6, STM32L1 series, 32-Bit Single-Core ARM Cortex-M3 MCU, 32MHz, 256KB FLASH, 32K x 8 RAM, 8K x 8 EEPROM, 64-LQFP, -40°C to 85°C
| Parameter | Value |
|---|---|
| Series | STM32L1 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 32MHz |
| Package | Tray |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 8K x 8 |
| Peripherals | Brown-out Detect/Reset, Cap Sense, DMA, I²S, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART, USB |
| Number of i (O) | 51 |
| Core processor | ARM® Cortex®-M3 |
| Case | 64-LQFP |
| Data converters | A/D 21x12b; D/A 2x12b |
| Program memory size | 256KB (256K x 8) |
The STM32L151RCT6 is an ultra-low-power ARM Cortex-M3 MCU from STMicroelectronics' STM32L1 series, clocked at 32 MHz with 256 KB of on-chip flash and 32K x 8 of SRAM.
The 64-LQFP package (10x10 mm body) is a widely used footprint that breaks out on a two-layer board.
It carries ROHS3 compliance.
Yes, the STM32L151RCT6 includes USB as part of its connectivity set, alongside I²C, SPI, UART/USART, IrDA, and LINbus.
The STM32L151CBU6A is a close functional sibling — same Cortex-M3 core at 32 MHz, same peripheral set, same -40°C to 85°C range. The main difference is the package: the CBU6A comes in a 52-pin UFQFPN (fewer I/O at 37) versus the 64-LQFP of the RCT6. Check your pin count and footprint before substituting.