GD32F307RET6 Core Parameters Basic Specifications Package: LQFP64 Core: Cortex-M4, 120MHz frequency Power supply: 2.6V~3.6V Temperature range: -40℃ ~ 85℃ (Industrial grade) Memory Flash: 512KB (256KB code area + 256KB data area) SRAM: 96KB Timers Advanced Timer (ATM): 1 General-Purpose Timer (GPTM): 6 Basic Timer (BTM): 2 Peripherals (consistent within the series) 51 GPIOs, 2 ADCs, 2 DACs, 2×CAN, 3×SPI, 2×I2S, USB OTG, RTC, watchdog, etc. Compatibility Fully pin-to-pin, package, PCB, and appearance compatible with RCT6/RGT6; hardware directly replaceable. Software requires only adjustments to Flash partitioning and timer-related configurations. Applications Medium code size, conventional industrial control, data acquisition, standard UART/CAN communication devices, balancing capacity and cost.