The STM32L471QEI7TR is a 32-bit ARM Cortex-M4 MCU from ST's STM32L4 ultra-low-power series, clocked at 80 MHz with 512 KB of Flash program memory and 128 KB of SRAM. It packs 109 I/O, a rich peripheral set including CANbus, multiple I²C/SPI/UART interfaces, QSPI, and a 19-channel 12-bit ADC plus dual 12-bit DAC. The part is specified over the -40°C to 105°C industrial temperature range and runs from a 1.71 V to 3.6 V supply. This is the tape-and-reel variant (132-UFBGA 7x7 mm) aimed at volume production.
ST STM32L471QEI7TR ARM Cortex-M4 MCU, 80 MHz, 512 KB Flash
MPNSTM32L471QEI7TR
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ST STM32L4 series ARM Cortex-M4 32-bit MCU, 80 MHz, 512 KB Flash, 128 KB RAM, 109 I/O, 132-UFBGA, -40 to 105°C.
$5.9307Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| 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 ~ 105°C (TA) |
| Speed | 80MHz |
| Package | Tape & Reel (TR) |
| 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) |
Product details
Frequently asked questions
What is the operating temperature range of STM32L471QEI7TR?
It is rated for -40°C to 105°C, making it suitable for industrial and automotive under-hood environments (though not AEC-Q100 qualified per the listing).