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STMicroelectronics STM32G474RET6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32G474RET6 ARM Cortex-M4F MCU, 170 MHz, 512 KB Flash

MPNSTM32G474RET6
Active

STMicroelectronics STM32G4 series, STM32G474RET6, ARM Cortex-M4F, 32-Bit Single-Core, 170MHz, 512KB Flash, 128K x 8 RAM, 52 I/O, CANbus, I²C, IrDA, LINbus, QSPI, SPI, UART/USART, A/D 26x12b; D/A 7x12b, -40°C ~ 85°C, 64-LQFP.

$20.88709Ref. price · indicative, final on quote
STMicroelectronics STM32G474RET6 datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM32G4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32G474RET6 specifications
ParameterValue
SeriesSTM32G4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed170MHz
PackageTray
RAM size128K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, QSPI, SPI, UART/USART
Number of i (O)52
Core processorARM® Cortex®-M4F
Case64-LQFP
Data convertersA/D 26x12b; D/A 7x12b
Program memory size512KB (512K x 8)

Product details

It packs 512 KB of Flash and 128 KB of SRAM, giving firmware headroom for vector-control algorithms, multiple PID loops, and OTA staging buffers without external memory. The 26-channel 12-bit ADC and 7-channel 12-bit DAC let it handle simultaneous current/voltage sensing and analog output in a single chip, which is the main draw over general-purpose MCUs in this footprint.

Mixed-signal density: 26 ADC channels, 7 DAC channels

The STM32G474RET6 carries 26 analog-to-digital converter channels (12-bit) and 7 digital-to-analog converter channels (12-bit) — a density unusual in a 64-pin LQFP. For a three-phase motor drive, you can sample all phase currents plus the DC-link voltage on dedicated ADC channels while the DACs generate reference voltages or analog setpoints.

The date-code and marking consistency should trace cleanly back to ST's authorized chain — the laser etch on the 64-LQFP body is a straightforward authenticity check for incoming inspection.

Frequently asked questions

What is the difference between STM32G474RET6 and STM32G474RCT6?

The STM32G474RET6 and STM32G474RCT6 are pin-compatible siblings in the same STM32G4 series, differing primarily in Flash memory density: the RET6 has 512 KB, while the RCT6 has 256 KB. Both run at 170 MHz, share the same 64-LQFP package, peripheral set, and 128 KB SRAM. The RET6 is the higher-density option for firmware that exceeds the 256 KB threshold.

Is there a replacement or equivalent for the STM32G474RET6?

The STM32G474RET6 is an active part with no official replacement. Within the STM32G4 family, the STM32G474RCT6 (256 KB Flash) is a lower-density alternative with the same package and pinout. The STM32L151CBU6A is a different-series MCU (Cortex-M3, 32 MHz, lower power) and is not a functional second-source — it lacks the 170 MHz performance and the 26-channel ADC / 7-channel DAC density of the G474.