STMicroelectronics STM32L4P5VET6, 32-bit ARM Cortex-M4 MCU, 120 MHz, 512 KB Flash, 320 KB SRAM, 83 I/O, CAN, USB OTG, 12-bit ADC, 100-LQFP, -40 to 85°C.
| 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 | 120MHz |
| Package | Tray |
| RAM size | 320K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG |
| Number of i (O) | 83 |
| Core processor | ARM® Cortex®-M4 |
| Case | 100-LQFP |
| Data converters | A/D 16x12b; D/A 2x12b |
| Program memory size | 512KB (512K x 8) |
The 83 general-purpose I/Os give plenty of headroom for sensor arrays, display interfaces, and control signals without needing an external GPIO expander.
Connectivity includes CANbus, USB OTG, multiple SPI and I²C channels, SAI for audio, and an EBI/EMI bus for external memory or parallel peripherals. The 12-bit ADC has 16 multiplexed channels; the 12-bit DAC has two outputs.
The difference is Flash memory density. The STM32L4P5VET6 has 512 KB of Flash, while the STM32L4P5VGT6 has 1 MB. Both share the same 100-LQFP package, 120 MHz Cortex-M4 core, and 320 KB SRAM — the VGT6 variant is the higher-density sibling for firmware that exceeds the 512 KB boundary.
The core processor runs at 120 MHz. That is the maximum clock speed for the ARM Cortex-M4 on this STM32L4 series part, giving enough throughput for real-time control loops, audio processing, and moderate DSP tasks without needing an external accelerator.
Both are part of the STM32L4 family and share the same Cortex-M4 architecture, but the STM32L4R5 is a higher-tier part with a larger Flash (up to 2 MB) and a different peripheral set. Pin compatibility depends on the specific package variant — check the STM32L4 reference manual for the exact pin mapping between the two series before assuming a drop-in swap.