The GD32E230xx devices belong to the value line of the GD32 MCU family. They are new 32-bit general-purpose microcontrollers based on the ARM Cortex-M23 core. The Cortex-M23 processor is an energy-efficient processor with a very low gate count, designed for microcontrollers and deeply embedded applications that require an area-optimized processor. The processor delivers high efficiency through a small yet powerful instruction set and extensively optimized design, featuring advanced processing hardware including a single-cycle multiplier and a 17-cycle divider. The GD32E230xx devices integrate the ARM Cortex-M23 32-bit core, operating at a maximum frequency of 72 MHz with flash access at 0–2 wait states for maximum efficiency. They provide up to 64 KB of embedded Flash memory and up to 8 KB of SRAM memory. The devices offer a wide range of enhanced I/Os and peripherals connected to two APB buses. They include one 12-bit ADC, one comparator, up to five general-purpose 16-bit timers, one basic timer, one PWM advanced timer, as well as standard and advanced communication interfaces: up to two SPIs, two I2Cs, two USARTs, and one I2S. Operating at a supply voltage of 1.8 to 3.6 V, the devices are available in -40 to 85°C temperature ranges and offer multiple power-saving modes to provide maximum flexibility in optimizing wakeup latency and power consumption, which is particularly important in low-power applications. These features make the GD32E230xx devices suitable for a wide range of applications, especially in industrial control, motor drives, user interfaces, power monitoring and alarm systems, consumer and handheld devices, gaming and GPS, and electric bicycles.