Product Description:

The GD32A503CBT3 is a specific model within GigaDevice's GD32A503 series, the company's first family of Automotive-Grade Microcontrollers (MCUs) . Designed for high reliability in demanding automotive environments, it follows the AEC-Q100 Grade 1 standard and is certified under the automotive industry's IATF 16949:2016 quality management system. The MCU delivers balanced processing performance, rich connectivity, and enhanced safety features, making it a robust choice for various automotive electronic control units (ECUs) in vehicle electrification and smart functions.

Feature Category:

Core & Performance: Arm® Cortex®-M33 32-bit processor core, operating at 100 MHz.

Memory: 384 KB embedded Flash and 48 KB SRAM, with additional dedicated code space configurable as 64 KB Data Flash / 4 KB EEPROM.

Automotive Reliability: Compliant with AEC-Q100 Grade 1 standard. Operational lifespan of over 15 years. Wide operating temperature: -40°C to +125°C.

Power Supply: Wide voltage range from 2.7V to 5.5V.

Communication Interfaces: 2× CAN FD and 3× LIN interfaces for in-vehicle networking. Multiple USARTs, I2Cs, SPIs, and an I2S interface.

Analog & Control: 12-bit ADC with 1 MSPS sampling rate, comparators, DAC, and advanced PWM timers for motor control.

Safety & Security: ECC for Flash/RAM, CRC for data communication. Built-in voltage/clock monitors.

Primary Applications:

The GD32A503 series, including the CBT3 variant, is designed for a wide range of automotive applications:

Body Control & Motor Systems: Smart door locks, window lifters, wipers, HVAC, power seats, and electric tailgates.

Automotive Lighting: Interior ambient lighting and dynamic exterior lighting (e.g., dynamic tail lights).

Smart Cockpit Systems: Instrument clusters, central displays, infotainment, navigation systems, and in-car wireless chargers.

Basic ADAS & Auxiliary Functions: Surround-view camera systems and Acoustic Vehicle Alerting Systems (AVAS).