STMicroelectronics STM32L4 series ARM Cortex-M4 MCU, 80 MHz, 512 KB Flash, 160 KB SRAM, 1.71-3.6V, -40 to 125°C, 48-UFQFPN.
| 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 ~ 125°C (TA) |
| Speed | 80MHz |
| Package | Tray |
| RAM size | 160K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB |
| Number of i (O) | 38 |
| Core processor | ARM® Cortex®-M4 |
| Case | 48-UFQFN Exposed Pad |
| Data converters | A/D 10x12b; D/A 1x12b |
| Program memory size | 512KB (512K x 8) |
This removes the end-of-life risk for production programs and allows new designs to proceed without planning for a forced migration.
The active status means no shortage premium from forced end-of-life buys, though lead times should be checked against your build schedule.
Yes, it is part of the STM32L4 series and shares the same peripheral architecture, pin compatibility within the 48-pin UFQFPN footprint, and the ultra-low-power design philosophy across the L4 family.
The STM32L452CEU3 runs at 80 MHz versus 32 MHz on the L151, carries 512 KB Flash versus 128 KB, and operates up to 125°C versus 85°C. Both are 32-bit ARM cores, but the L452 uses the Cortex-M4 with FPU and DSP extensions, while the L151 uses the Cortex-M3 without hardware floating-point.