STMicroelectronics STM32G483QET6

Overview

STM32G483QET6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating at up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 128 KB SRAM (96 KB + 32 KB CCM), and integrated analog peripherals including five 12-bit ADCs (0.25 µs conversion), seven 12-bit DAC channels, six operational amplifiers, and hardware math accelerators (CORDIC, FMAC). It targets motor control, digital power conversion, and industrial sensing systems requiring real-time signal processing and high-precision analog I/O.

For engineers reviewing the STM32G483QET6 datasheet, STM32G483QET6 pinout, STM32G483QET6 application, or STM32G483QET6 equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, 32-bit advanced motor control timers with dead-time generation, FDCAN support for flexible data-rate automotive networks, UCPD interface for USB Type-C™ power delivery, and hardware AES-128/256 encryption for secure firmware updates.

Technical Context

The STM32G483QET6 implements an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash memory, critical for deterministic interrupt latency in motor control loops. Its interconnect matrix routes up to 107 GPIOs to multiple peripherals-including three FDCAN controllers, four SPIs with I2S multiplexing, and one SAI-without bus contention.

It integrates dedicated hardware accelerators: CORDIC for real-time trigonometric computation (e.g., space-vector modulation), FMAC for FIR/IIR filter execution, and a true RNG compliant with NIST SP800-90B. The 32 KB CCM SRAM with parity supports time-critical code/data storage independent of main SRAM banks.

Key Specifications

Pinout & Package

STM32G483QET6 is packaged in LQFP100 (14 × 14 mm, 0.5 mm pitch), a 100-pin quad flat package with exposed thermal pad, rated for 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 STM32G483QET6 adds UCPD and FMAC for USB-C PD and real-time filtering, while versus STM32H743VIT6, it trades peak CPU speed for superior analog integration, deterministic low-latency peripherals, and lower power consumption in mixed-signal embedded roles.

Availability

STM32G483QET6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, programmable logic controllers, and smart sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32G483QET6 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 management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32G4 series is engineered for high-performance, resource-constrained embedded applications demanding rich analog integration, real-time determinism, and hardware-accelerated math - especially in digital power, motor control, and industrial automation.

FAQ

What is the maximum operating frequency and associated DMIPS rating of the STM32G483QET6?

The STM32G483QET6 operates at a maximum frequency of 170 MHz and delivers 213 DMIPS (Dhrystone MIPS) measured per EEMBC methodology. This performance level is sustained using the ART Accelerator for zero-wait-state Flash execution and includes full utilization of the Cortex-M4's FPU and DSP instruction set for floating-point and saturated arithmetic operations.

Does the STM32G483QET6 support hardware-based cryptographic acceleration, and which algorithms are implemented?

Yes, the STM32G483QET6 includes a dedicated hardware AES accelerator supporting both 128-bit and 256-bit key lengths for encryption and decryption. It also integrates a true random number generator (TRNG) compliant with NIST SP800-90B and a CRC calculation unit. These features enable secure boot, firmware authentication, and encrypted communication without consuming CPU cycles or compromising real-time responsiveness.

How many analog-to-digital converters does the STM32G483QET6 integrate, and what are their key resolution and speed specifications?

The device integrates five independent 12-bit ADCs with up to 42 total channels, capable of 0.25 µs conversion time (4 MSPS). Resolution can be extended to 16-bit using hardware oversampling with configurable shift and accumulation. Each ADC supports synchronous sampling, injected/conversion sequences, and direct DMA transfer - optimized for multi-sensor acquisition in motor current sensing and power quality monitoring.

What packaging and thermal specifications apply to the STM32G483QET6 variant?

The STM32G483QET6 uses the LQFP100 package (14 × 14 mm, 0.5 mm pitch) with an exposed thermal pad. It is rated for industrial temperature operation from –40 °C to +85 °C. Thermal resistance values are θ_JA = 35 °C/W and θ_JC = 5.5 °C/W (top), enabling reliable operation in convection-cooled industrial enclosures without forced airflow or heatsinks under typical load conditions.