STMicroelectronics STM32G4A1KEU6

Overview

STM32G4A1KEU6 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, 112 KB SRAM (96 KB + 16 KB CCM), and integrated analog peripherals including three 16-bit ADCs, four 12-bit DACs, four rail-to-rail comparators, and four operational amplifiers. It targets high-precision motor control and digital power conversion systems.

For engineers reviewing the STM32G4A1KEU6 datasheet, STM32G4A1KEU6 pinout, STM32G4A1KEU6 application, or STM32G4A1KEU6 equivalent, key selection criteria include its CORDIC/FMAC math accelerators, dual FDCAN interfaces for flexible data-rate automotive/industrial networking, UCPD controller for USB Type-C™ PD implementation, and 5 V-tolerant GPIOs enabling direct interfacing with legacy logic.

Technical Context

The device implements an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from Flash at 170 MHz. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals via multiple AHB/APB buses.

It integrates dual FDCAN controllers compliant with ISO 11898-1:2015, supporting bit rates up to 5 Mbps in FD mode. The UCPD peripheral includes physical layer transceiver, Type-C detection, and PD protocol engine - all hardware-accelerated without CPU intervention.

Key Specifications

Pinout & Package

STM32G4A1KEU6 is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package with exposed thermal pad, optimized for compact industrial and motor control PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance mixed-signal microcontroller applications.

Compared with STM32G474RET6, the STM32G4A1KEU6 adds USB-C PD capability and second FDCAN at identical Flash/SRAM size but in smaller UFQFPN48; versus STM32H743VIT6, it trades peak CPU speed for superior analog density, deterministic low-latency math acceleration, and 30% lower active power consumption.

Availability

STM32G4A1KEU6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, smart grid edge nodes, and portable medical instrumentation requiring stable component supply across multi-year production cycles.

Supply support for STM32G4A1KEU6 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-efficiency digital power and precision motor control applications, integrating math accelerators, rich analog peripherals, and USB-C PD functionality into a single low-power MCU platform.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32G4A1KEU6 operates at up to 170 MHz with an ART Accelerator enabling zero-wait-state Flash execution. Its performance is rated at 213 DMIPS (Dhrystone 2.1), verified under conditions of 1.71–3.6 V supply and ambient temperature range –40 °C to 85 °C. This frequency is achievable with internal 16 MHz RC + PLL configuration or external crystal input.

Does STM32G4A1KEU6 support USB Type-C™ Power Delivery negotiation?

Yes - it integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0 specification. The peripheral handles physical layer signaling, CC line detection, VCONN switching, and PD message exchange independently of the CPU, reducing firmware complexity and latency in power-role negotiation.

How many analog-to-digital converters does this MCU include, and what are their key capabilities?

It features three independent 16-bit ADCs with up to 36 input channels, 0.25 µs conversion time, and hardware oversampling up to 32×. Each ADC supports differential input, injected channel sequencing, and analog watchdogs. They operate across the full 0–3.6 V range and are synchronized for precise three-phase current sampling in motor control.

Is the STM32G4A1KEU6 pin-compatible with other members of the STM32G4A1x series?

No - pin compatibility is package-dependent. The STM32G4A1KEU6 uses UFQFPN48 (A0B9), while other variants like STM32G4A1RET6 use LQFP64 (5W). Pin mapping differs significantly between packages; migration requires PCB redesign. Refer to ST's AN5028 for detailed migration guidance between G4A1 sub-families.