STMicroelectronics STM32L4 series, STM32L443RCT6, ARM Cortex-M4 32-bit MCU, 80 MHz, 256 KB Flash, 64 KB SRAM, 52 I/O, 64-LQFP, -40°C 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 | 80MHz |
| Package | Tray |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB |
| Number of i (O) | 52 |
| Core processor | ARM® Cortex®-M4 |
| Case | 64-LQFP |
| Data converters | A/D 16x12b; D/A 2x12b |
| Program memory size | 256KB (256K x 8) |
The ARM Cortex-M4 core runs at 80 MHz with a single-precision floating-point unit. That clock rate puts it above the M3-class parts for DSP-style math (FIR filters, FFTs, motor-control loops) while staying in the power envelope that the STM32L4 architecture is known for.
52 I/O lines are available, and the peripheral list includes CANbus, USB, QSPI, SAI, multiple I²C and SPI ports, plus an LCD controller.
Both are STM32L4 series Cortex-M4 MCUs with identical Flash and SRAM sizes. The STM32L443RCT6 adds a USB interface and a DAC, which the STM32L433RCT6 lacks. If your design needs USB connectivity or an on-chip DAC, the STM32L443RCT6 is the correct choice.
The STM32L443RCT6 is pin-compatible with the STM32L4 series Nucleo-64 board (NUCLEO-L443RC) and the Discovery kit (STM32L4R9I-DISCO), both of which provide full access to the MCU's peripherals and debug interface.