Datasheet APM32E103xCxE Arm® Cortex®-M3 based 32-bit MCU Version: V1.6 1.
Product characteristics Core 32-bit Arm® Cortex®-M3 core Up to 120MHz working frequency On-chip memory Flash:512KB SRAM:128KB EMMC: Supports CF card, SRAM, PSRAM, SDRAM NOR and NAND memory Clock HSECLK: 4~16MHz external crystal/ceramic oscillator supported LSECLK: 32.768KHz crystal/ceramic oscillator supported HSICLK: 8MHz RC