It carries 1 MB of Flash and 640 KB of SRAM, which gives firmware room for a full RTOS, a TCP/IP stack, and a graphics frame buffer without external memory. The 115 I/O pins in a 144-LQFP package mean you can route a parallel LCD interface, a camera sensor, and a handful of serial buses before you run out of pads.
STMicroelectronics STM32L4R series, ARM Cortex-M4 32-bit MCU, STM32L4R5ZGT6, 120 MHz, 1 MB Flash, 640 KB SRAM, 115 I/O, 144-LQFP, -40 to 85°C.
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Specifications
| Parameter | Value |
|---|---|
| Series | STM32L4R |
| Mounting type | 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 | 640K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG |
| Number of i (O) | 115 |
| Core processor | ARM® Cortex®-M4 |
| Case | 144-LQFP |
| Data converters | A/D 16x12b; D/A 2x12b |
| Program memory size | 1MB (1M x 8) |
Product details
Frequently asked questions
Does STM32L4R5ZGT6 support USB OTG?
Yes, USB OTG is listed among the connectivity options.
What is the difference between STM32L4R5ZGT6 and STM32L4R5VGT6?
The two share the same core, memory, and peripheral set. The difference is the package: the ZGT6 is in a 144-LQFP with 115 I/O, while the VGT6 uses a 100-LQFP with fewer I/O. They are not pin-compatible — the board layout must match the package.