Description：

The GigaDevice GD32G553RET7 represents the top-tier configuration within the GD32G5 series, combining the most powerful features into a single package. It is built around the flagship 216 MHz Arm® Cortex®-M33 core and is housed in a 144-pin LQFP package, offering the maximum available I/O count for extensive system connectivity. This model is specifically designed for the most complex and demanding industrial applications, such as multi-axis robotic controllers, high-performance Programmable Logic Controllers (PLCs), and high-power digital inverters, where vast peripheral integration, high-speed computing, and ample memory are all critical requirements.

Main Features：

1. Core & Performance

Top-Tier Core Performance: 216 MHz Arm® Cortex®-M33 core with DSP instruction set and a Single-Precision Floating-Point Unit (FPU).

Full-Featured Hardware Acceleration: Integrates a Trigonometric Mathematics Unit (TMU), Filter Algorithm Accelerator (FAC), and Complex Mathematics Unit (CMU), providing unparalleled computational acceleration for real-time control and signal processing.

2. Advanced Control & Peripherals

Core High-Resolution Timer: The High-Resolution Timer (HRTIM) provides PWM resolution of 145ps, serving as the cornerstone for achieving high-efficiency, high-power-density digital power supplies and complex motor algorithms.

High-Speed Analog System: Includes multi-channel high-speed 12-bit ADC (up to 5.3 MSPS), high-speed 12-bit DAC, and fast comparators (CMP), supporting multi-channel parallel high-precision signal chains.

Ultimate Connectivity & Expansion Capability:

The 144-pin LQFP ("R" package) provides the highest number of GPIO pins in the series, enabling connection to a vast array of sensors, drivers, and communication modules.

Exceptionally rich communication interfaces include dual CAN-FD, Ethernet MAC (EMAC), USB 2.0 HS/FS, and multiple SPI/I2C/USART, meeting the networking demands of complex systems.

Advanced Security Architecture: Equipped with hardware AES-128/256, HASH, and TRNG, and supports Secure Boot and Secure Firmware Update (SFU), ensuring security throughout the entire lifecycle of industrial systems.

3. Memory, Package & Reliability

Maximum Memory Configuration (Key Differentiator): According to naming conventions, the "E" suffix indicates it is equipped with a large 512KB Flash and 128KB SRAM (including 32KB Tightly Coupled Memory) for the series, capable of accommodating extremely complex application code and data.

Maximum Pin-Count Package: "R" represents the 144-pin LQFP package, achieving the best balance between I/O capability and reliable solderability, suitable for complex motherboard designs.

Industrial-Grade Robustness: The "T7" suffix ensures stable operation within the harsh industrial temperature range of -40°C to +105°C.

Functional Safety Ready: Designed to support IEC 61508 SIL2 functional safety level and provides related safety manuals, suitable for high-reliability systems.

Typical Applications：

High-End Industrial Automation Main Control: Central processing unit for large Programmable Logic Controllers (PLC), main controller for industrial robots, multi-axis联动 control card for CNC systems.

High-Performance Multi-Axis Servo Drives: Multi-axis servo drive clusters in automated production lines, high-precision direct-drive motor control, motion control for semiconductor manufacturing equipment.

High-Power Energy Conversion Systems: Three-phase photovoltaic/energy storage inverters, main control unit for electric vehicle DC fast charging piles, advanced power management architectures (AMPS) for data centers.

Complex Networked Gateways: Industrial IoT gateways or edge computing controllers that need to aggregate and process multiple Ethernet and CAN-FD networks, serial devices, and run complex protocol stacks.