Product Description

The GigaDevice GD32G553CCU7 is a specialized variant of the GD32G5 series, engineered for applications operating in exceptionally demanding thermal environments. It retains the core competencies of the series—including the powerful 216 MHz Arm® Cortex®-M33 core and the critical High-Resolution Timer (HRTIM)—within a cost-effective 48-pin LQFP package. The defining characteristic of this model is its extended operating temperature range of -40°C to +125°C, making it a reliable choice for automotive subsystems, outdoor industrial equipment, and other systems that must endure elevated ambient temperatures or require a higher thermal safety margin.

Main Features：

1. Core & Performance

High-Performance Core: 216 MHz Arm® Cortex®-M33 core, supporting DSP instruction set and integrated Single-Precision Floating-Point Unit (FPU).

Hardware Accelerator: Built-in Trigonometric Mathematics Unit (TMU), significantly improving the computational efficiency of control algorithms.

2. Advanced Control & Peripherals

Core Control Peripheral: Integrates a High-Resolution Timer (HRTIM), providing PWM resolution as high as 145ps.

High-Speed Analog Peripherals: Includes 12-bit high-speed ADC (up to 5.3 MSPS) and high-speed comparators (CMP).

Connectivity: Provides communication interfaces including CAN-FD, USB 2.0 FS, and multiple SPI/I2C/USART (availability subject to verification due to 48-pin limitation).

Security Features: Supports hardware cryptographic modules.

3. Memory, Package & Reliability

Memory Configuration: According to naming conventions, the first "C" typically refers to a memory configuration of 256KB Flash and 128KB SRAM.

Compact Package: The second "C" indicates the use of a 48-pin LQFP package.

Extended Temperature Range (Core Differentiator): The suffix "U7" is the key identifier, indicating an operating temperature range of -40°C to +125°C. This is wider than the common industrial-grade "T7" range (-40°C to +105°C), providing stronger high-temperature resistance and reliability.

Typical Applications：

Its "Extended Temperature Range" characteristic makes it an ideal choice for the following demanding environment applications:

Automotive Electronics: Auxiliary control for On-Board Chargers (OBC), slave control units for Battery Management Systems (BMS), thermal management systems, interior lighting control.

High-Temperature Industrial Environments: Drive controllers placed near motors or in enclosed cabinets, industrial power modules, power supplies for outdoor communication equipment.

Consumer-Grade High-Temperature Applications: High-end drone Electronic Speed Controllers (ESC) that need to withstand high temperatures, fast charger main controllers.