STMicroelectronics STM32L471ZET6, STM32L4 series, 32-bit ARM Cortex-M4 MCU, 80 MHz, 512 KB Flash, 128 KB SRAM, 114 I/O, 144-LQFP, -40°C 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 | Tray |
| RAM size | 128K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART |
| Number of i (O) | 114 |
| Core processor | ARM® Cortex®-M4 |
| Case | 144-LQFP |
| Data converters | A/D 24x12b; D/A 2x12b |
| Program memory size | 512KB (512K x 8) |
The STM32L471ZET6: The 144-LQFP package provides 114 I/O lines, making it a fit for sensor fusion, motor control, industrial automation, and IoT edge nodes where peripheral count and memory headroom matter.
Connectivity includes CANbus, EBI/EMI for external memory expansion, I²C, IrDA, LINbus, MMC/SD card, QSPI, SAI, SPI, SWPMI, and multiple UART/USART interfaces. An internal oscillator reduces BOM count for clock generation.
Both are STM32L4 series Cortex-M4 MCUs, but STM32L476ZGT6 offers 1 MB Flash and 128 KB SRAM versus 512 KB Flash on STM32L471ZET6. The L476 variant also includes additional peripherals like a TFT-LCD controller. Package and pin compatibility should be verified against the respective datasheets for a drop-in replacement.