Part No: GD32E507V-START Description: MCU model: GD32E507VET6 CPU: ARM® Cortex™-M33 Speed Max: 180MHz Flash(KB): 512 SRAM(KB): 128 Board Features: 1. Supports power and debugging via Mini-USB(5V) with onboard GD-Link debugger (SWD), 3.3 V LDO, and USB-to-serial bridge (CH340E). 2. Includes 1 user LED and 2 keys, USB FS Device interface, and full access to GPIOs through 2×40-pin headers. 3. Onboard 25 MHz crystal and 32.768 kHz RTC for accurate timing; supports example projects for GPIO, USART, USB MSC/HID, EXTI, and PWM. Description: The GD32E507V-START board is a hardware platform that enables prototyping on GD32E507VE Cortex-M33 High Performance MCU. The GD32E507VET6 features a single-core ARM Cortex-M33 MCU which can run up to 180 MHz with flash accesses zero wait states, 512kiB of Flash, 128kiB of SRAM and 80 GPIOs. It uses GD-Link Mini USB interface to supply 5V power. Reset, Boot, K2-User Key, LED, USB and USART to USB interface are also included. For more Information: GD32E507-GigaDevice.com