STMicroelectronics STM32L4 series, STM32L471QEI6, ARM Cortex-M4 32-bit MCU, 80MHz, 512KB Flash, 128K x 8 RAM, 109 I/O, CANbus, I²C, SPI, UART/USART, 1.71V-3.6V, -40°C to 85°C, 132-UFBGA.
| 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) | 109 |
| Core processor | ARM® Cortex®-M4 |
| Case | 132-UFBGA |
| Data converters | A/D 19x12b; D/A 2x12b |
| Program memory size | 512KB (512K x 8) |
Housed in a 132-ball UFBGA (7x7 mm), this is a fine-pitch BGA that requires controlled reflow and X-ray inspection. The compact footprint suits space-constrained designs, but the 0.5 mm ball pitch calls for a capable PCB fab and assembly house.
There is no NRND or LTB notice, so it remains qualified for new designs and volume production.
The core runs at 80 MHz maximum.