STMicroelectronics STM32G484RET3

Overview

STM32G484RET3 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 96 KB SRAM (including 32 KB CCM with parity), and integrated analog peripherals including five 12-bit ADCs (0.25 µs conversion), seven 12-bit DACs, six operational amplifiers, and a high-resolution timer (HRTIM) with 184 ps resolution-designed for precision motor control and digital power conversion.

For engineers reviewing the STM32G484RET3 datasheet, STM32G484RET3 pinout, STM32G484RET3 application, or STM32G484RET3 equivalent, key selection considerations include HRTIM timing precision, dual-bank Flash read-while-write capability, CORDIC/FMAC hardware accelerators for real-time math, and FDCAN support for automotive-grade communication.

Technical Context

The device integrates an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz, alongside a Memory Protection Unit (MPU) and dual-bank Flash supporting seamless firmware updates. Its interconnect matrix routes 107 GPIOs-including 5 V-tolerant pins-to multiple peripherals without contention.

Analog subsystem includes three buffered external DAC channels (1 MSPS), four unbuffered internal DACs (15 MSPS), seven rail-to-rail comparators, and six op-amps configurable in PGA mode with all terminals accessible-enabling closed-loop analog signal conditioning directly on-chip.

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with 48-pin quad flat lead-free outline; RoHS-compliant, industrial temperature range (–40 °C to +85 °C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32G474RET6, the G484RET3 adds HRTIM, UCPD, and expanded analog resources-making it superior for digital power and USB-C PD systems; versus STM32H743VIT6, it trades raw CPU performance for deterministic analog timing and dedicated math acceleration.

Availability

STM32G484RET3 is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial I/O modules, and USB-C PD controller nodes requiring stable component supply and long-term industrial lifecycle support.

Supply support for STM32G484RET3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM32G4 series targets high-performance, analog-rich embedded applications-specifically digital power conversion, motor control, and USB-C PD-by integrating specialized hardware accelerators and precision timing peripherals into a single Cortex-M4 platform.

FAQ

What is the maximum operating frequency and associated performance metric of the STM32G484RET3?

The STM32G484RET3 operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS). This is achieved using the ART Accelerator for zero-wait-state Flash execution and includes full DSP instruction support and a floating-point unit (FPU) for real-time signal processing tasks.

Does the STM32G484RET3 support hardware-accelerated cryptographic operations?

Yes-it integrates a dedicated AES-128/256 hardware accelerator for encryption/decryption, a true random number generator (TRNG), and a CRC calculation unit. These features enable secure firmware updates, encrypted communications, and tamper-resistant key storage without CPU overhead.

How many analog-to-digital converter (ADC) channels does the STM32G484RET3 support, and what is their maximum sampling rate?

The device integrates five independent 12-bit ADCs supporting up to 42 total channels with a minimum conversion time of 0.25 µs (4 MSPS per ADC). Hardware oversampling extends effective resolution to 16 bits, and the 0–3.6 V input range accommodates direct connection to most industrial sensors.

What package type and pin count does the STM32G484RET3 use, and is it RoHS-compliant?

The STM32G484RET3 uses the LQFP48 package: 48-pin, 7 × 7 mm body, 0.5 mm pitch, with exposed pad for thermal dissipation. It is fully RoHS-compliant and rated for industrial temperature range (–40 °C to +85 °C), meeting JEDEC standard J-STD-020 moisture sensitivity level MSL3.