STMicroelectronics STM32G491CCU3TR, STM32G4 series, 32-bit ARM Cortex-M4 MCU, 170 MHz, 256 KB Flash, 112 KB SRAM, 42 I/O, 48-UFQFN exposed pad, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Series | STM32G4 |
| 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 | 170MHz |
| Package | Tape & Reel (TR) |
| RAM size | 112K x 8 |
| Core size | 32-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB |
| Number of i (O) | 42 |
| Core processor | ARM® Cortex®-M4 |
| Case | 48-UFQFN Exposed Pad |
| Data converters | A/D 19x12b SAR; D/A 4x12b |
| Program memory size | 256KB (256K x 8) |
The 19-channel 12-bit SAR ADC and four 12-bit DACs are the analog backbone for multi-phase current sensing and setpoint generation in digital power supplies and servo drives. Combined with the CANbus, USB, and QSPI interfaces, this part fits into fieldbus-connected actuator nodes or sensor hubs that need local signal conditioning.
The 125°C ceiling means the processor can sit next to a power stage without a heatsink as long as the total dissipation stays within the package limits.
The difference is the shipping medium: the 'TR' suffix indicates Tape & Reel packaging, while the 'U6' variant typically ships in tray or tube. The silicon and functional ratings are identical.