This series of microcontrollers is ideal for a wide range of applications, including digital power systems, charging stations, energy storage inverters, frequency converters, servomotors, and optical communication. The new series offers 14 models in 7 package types, including LQFP128/100/80/64/48, WLCSP81, and QFN48, as well as evaluation and development boards.


Figure 1: GD32G5 series model range.


Powerful Performance Driving the Industrial Market:
The GD32G5 series microcontrollers are powered by the high-performance Arm® Cortex®-M33 core, with a clock speed of up to 216 MHz. These MCUs feature an advanced hardware DSP (Digital Signal Processor) accelerator and a single-precision floating-point unit (FPU). They also integrate a hardware trigonometric function unit (TMU), supporting 10 types of function calculations, along with various other hardware acceleration units, including a filter algorithm coprocessor (FAC) and a Fast Fourier Transform (FFT), significantly improving processing efficiency. At maximum frequency, the GD32G5 series MCUs deliver performance up to 316 DMIPS, achieving an impressive CoreMark® score of 694.
The GD32G5 series is equipped with 256KB to 512KB of embedded Flash memory, supporting dual-bank Flash, and 128KB of SRAM, including 32KB of tightly coupled RAM (TCMRAM) for wait-free execution of critical instructions and data. Furthermore, they feature high-speed cache memory, with up to 2KB of instruction cache (I-Cache) and 512KB of data cache (D-Cache), further enhancing performance.

Extensive Range of Peripherals:
The GD32G5 series microcontrollers integrate a wide range of peripheral resources. They feature up to four 12-bit analog-to-digital converters (ADCs) with a sampling rate of up to 5.3 MSPS (million samples per second) and up to 42 channels, as well as four 12-bit digital-to-analog converters (DACs), two of which achieve sampling rates of up to 15 MSPS. In addition, the series includes eight high-speed comparators and a suite of high-precision analog peripherals designed to meet the requirements of motor and power control applications. The GD32G5 series also features a 16-channel high-resolution timer (HRTimer) with a resolution of 145 picoseconds, along with three 8-channel advanced timers, two 32-bit general timers, five 16-bit general timers, two 16-bit basic timers, and one low-power timer.
For communication interfaces, the GD32G5 series offers five U(S)ARTs, four I2Cs, three SPIs, and one QSPI. The MCUs are also equipped with three CAN-FD modules, ideal for high-speed communication applications. Additionally, they integrate a high-performance digital filter (HPDF) with support for external Σ-Δ modulators. The series also includes four configurable logic arrays (CLAs) and the Trigsel module, which allows for flexible configuration of trigger sources. Designed to operate in a wide temperature range from -40°C to 105°C, the GD32G5 series MCUs are ideal for demanding applications where strict temperature requirements must be met.

Building a Solid Foundation of Quality with Security and Reliability:
The GD32G5 series MCUs feature advanced security features to protect communication and firmware, including secure boot, secure debugging, and secure firmware updates. The MCUs offer 2 KB of One-Time Programmable (OTP) storage to ensure code and data integrity, while all Flash and SRAM memory supports Error Correction Code (ECC). Furthermore, the series integrates built-in hardware encryption and decryption modules, as well as a True Random Number Generator (TRNG), strengthening data protection and MCU security.

ecosystem
is growing rapidly, with GigaDevice providing a free Integrated Development Environment (IDE). The GD32 Embedded Builder IDE, along with other debugging and download tools such as GD-LINK, is already available for the new GD32G5 MCUs. Leading industry tool vendors, such as Arm® KEIL, IAR, and SEGGER, will also offer comprehensive support for the GD32G5 series. Documentation, software libraries, and tools for the series are already available on the website, providing extensive development resources.

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