Flash and RAM sizing — BOM fit check
The STM32G031K8U7TR: 64 KB of program Flash and 8 KB of SRAM.
The 32-UFQFN with exposed pad (5x5 mm) is a space-saver for dense PCBs.
STM32G031K8U7TR ARM Cortex-M0+ MCU, 64 MHz, 64 KB Flash
MPNSTM32G031K8U7TR
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STMicroelectronics STM32G0 series, 32-Bit Single-Core ARM Cortex-M0+ MCU, 64 MHz, 64KB (64K x 8) FLASH, 8K x 8 RAM, 30 I/O, 1.7V ~ 3.6V, -40°C~105°C, 32-UFQFN Exposed Pad, Surface Mount, Tape & Reel.
$1.7085Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | STM32G0 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.7V ~ 3.6V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 64MHz |
| Package | Tape & Reel (TR) |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 30 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 32-UFQFN Exposed Pad |
| Data converters | A/D 18x12b |
| Program memory size | 64KB (64K x 8) |
Product details
Frequently asked questions
Is STM32G031K8U7TR a direct replacement for STM32G031K6U6?
The STM32G031K8U7TR has 64 KB Flash versus 32 KB on the K6 variant, but shares the same 32-UFQFN package and pinout. It is a drop-in hardware replacement with double the code space, though firmware may need adjustment if the extra Flash is used.