Product Description：

The GD32A742AIT3TB is a flagship automotive-grade microcontroller from GigaDevice's GD32A series. Built around the powerful Arm® Cortex®-M7 core running at up to 550MHz, it delivers exceptional computational performance for next-generation automotive applications. This MCU is designed to meet stringent automotive reliability standards (AEC-Q100 Grade 2) and supports functional safety development up to ASIL B (ISO 26262). It integrates a rich set of advanced peripherals, including Gigabit Ethernet, CAN FD, and a dedicated Hardware Security Module (HSM), making it an ideal solution for central gateways, advanced body control, telematics, and in-vehicle infotainment systems.

Key Features：

High-Performance Core: Arm Cortex-M7 processor operating at up to 550MHz, supporting double-precision FPU and DSP instructions, delivering powerful real-time computing capability.

Automotive-Grade Reliability & Safety: Compliant with AEC-Q100 Grade 2 standards (operating temperature range: -40°C to +105°C), supporting functional safety development up to ISO 26262 ASIL B.

Enhanced Security Hardware: Integrated, independent Hardware Security Module (HSM) containing cryptographic engines such as True Random Number Generator (TRNG), AES, SHA, and PKC, ensuring communication security and data integrity.

Ample Memory: Up to 3072KB of on-chip Flash and 512KB of SRAM, meeting the needs of complex applications and large data buffering.

Advanced Communication Interfaces:

2x 10/100/1000M Gigabit Ethernet controllers (with IEEE 1588).

Up to 4x CAN FD interfaces.

USB 2.0 OTG FS/HS, SDIO, I2C, SPI, UART, etc.

Analog Peripherals: 3x 12-bit high-speed ADCs (with 16-bit hardware oversampling), 2x 12-bit DACs.

Advanced Timers: High-end timers supporting complex PWM applications like motor control and digital power supplies.

Package: LQFP176 package, providing abundant I/O pins.

Typical Applications：

Automotive Central Gateway / Domain Controller: Leverages its high performance, dual Gigabit Ethernet, and multiple CAN FD interfaces to enable high-speed data exchange and protocol conversion between different in-vehicle network domains (powertrain, body, infotainment).

Advanced Body Control Module (BCM): Used for integrated control of lighting, windows, doors, seats, etc., with support for OTA remote updates.

In-Vehicle Infotainment (IVI) & Instrument Clusters: Drives central display screens and digital instrument clusters, processing multimedia information.

Telematics Control Unit (TCU): Serves as the core of the T-Box, processing communication data from 4G/5G, GNSS, Bluetooth, etc.

New Energy Vehicles: Suitable for subsystems requiring high reliability and safety, such as Battery Management Systems (BMS) and On-Board Chargers (OBC).

Advanced Driver-Assistance Systems (ADAS): Used for sensor data preprocessing and fusion in auxiliary control units.