The STM32L452VEI6: For a procurement buyer filling a BOM line, this removes the risk of a sudden discontinuation that would force a requalification.
The STM32L452VEI6 is built around an ARM Cortex-M4 core clocked at 80 MHz.
The 100-UFBGA package measures 7x7 mm.
Connectivity and peripherals — what is on-chip
This MCU integrates a rich peripheral set: CANbus, multiple I²C and SPI, UART/USART with IrDA and LIN support, a Quad-SPI interface for external Flash, SAI for audio, and USB. The USB peripheral includes an on-chip PHY — no external transceiver needed for full-speed operation. There are 83 GPIOs, a 16-channel 12-bit ADC, and a single 12-bit DAC.
Supply range and power management
The STM32L4 family is ST's ultra-low-power platform, and this part supports multiple low-power modes (Stop, Standby, Shutdown) with typical current draws in the microamp range — though the exact figures depend on the clock configuration and peripheral gating. For a battery-powered design, the wide Vcc range and low-power architecture are the key selection drivers.