What happens when performance, security, and low power come together in a package? A microcontroller series is aiming to reshape embedded design.
GigaDevice has introduced the GD32F5HC series, a family of 32-bit microcontrollers aimed at HMI and IoT edge applications that require performance, security, compact footprints, and low power consumption. Built around the Arm Cortex-M33 core, the series runs at up to 200 MHz and combines on-chip memory, hardware acceleration, and integrated security features in a package designed for industrial and consumer embedded systems.
The MCUs ship with up to 2 MB of Flash, 320 KB of SRAM, and 32 KB of instruction cache, giving developers headroom for graphics frameworks, real-time processing, and embedded applications. Performance is boosted by an integrated DSP accelerator and a single-precision floating-point unit, helping accelerate signal processing and algorithm-heavy workloads.
Security is a focus of the platform. The GD32F5HC series supports Arm TrustZone® technology, along with MPU and SAU-based isolation for hardware-level protection. Security hardware includes a 2 Kbit eFuse for secure key storage and a built-in cryptographic engine supporting TRNG, SHA, AES, DES/3DES, RSA/DH, and ECC. The platform also supports secure boot, secure storage, secure debugging, and secure firmware updates, addressing security demands in connected embedded devices.
Connectivity and peripheral support are geared toward embedded designs. The series integrates communication interfaces including SPI, I2S, SQPI, QSPI, I2C, USART, and USB FS OTG. External PSRAM and Flash expansion are supported through the QSPI and SQPI interfaces at speeds up to 45 MHz, allowing developers to scale storage capacity for graphics, logging, or data-heavy applications.
The analog and timing subsystems are designed for control-oriented workloads. The chips include a 12-bit ADC, integrated temperature sensor, and timer configurations for waveform generation, motor control, and synchronized operations. DMA controllers and a DMAMUX module help offload data movement from the CPU and improve system efficiency.
Power efficiency remains part of the design despite the higher performance profile. The devices support low-power modes, with standby current as low as 3.63 µA. They operate across a 2.7 V to 3.63 V supply range and support temperatures from −40°C to +105°C. Package options include 4×4 mm BGA64 and QFN56 variants with up to 54 GPIOs and 8 wake-up I/Os, making the series suitable for compact, high-density designs.
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