STMicroelectronics STM32L4 series, ARM Cortex-M4 32-bit MCU, 80 MHz, 512 KB Flash, 160 KB SRAM, 64-LQFP (10x10), -40 to 85 °C, 1.71 V to 3.6 V supply.
| Parameter | Value |
|---|---|
| Series | STM32L4 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.71V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 80MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 160K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART |
| Number of i (O) | 52 |
| Core processor | ARM® Cortex®-M4 |
| Case | 64-LQFP |
| Data converters | A/D 16x12b; D/A 1x12b |
| Program memory size | 512KB (512K x 8) |
The STM32L451RET6TR is a 32-bit ARM Cortex-M4 MCU clocked at 80 MHz with 512 KB Flash and 160 KB SRAM. It sits in the STM32L4 series and operates from 1.71 V to 3.6 V.
The 160 KB SRAM gives you room for a modest RTOS heap and comms buffers; the 512 KB Flash holds a full application stack plus a bootloader for field updates.
The core runs at 80 MHz, based on an ARM Cortex-M4 with single-cycle multiply and hardware divide.