MCU M4 AT32F403ARCT7 PIN To PIN Alternative M3 STM32F205RCT7 STM32F103RCT7 flash 256kb M3 STM32F105RBT6 STMF105RCT6 STM32F103RCT6 STM32F103RBT6 Software hardware is completely compatible

1. AT32F403A does not support USB OTG
2. If the SRAM requirement is within 32KB, AT32F415 (built-in USB OTG) can be used
3. Refer to AT32F403A description on this page (8th~13th column)

Hot sell:

STM32F103C8T6 STM32F103ZCT6 STM32F205VGT6 STM32F302RCT6 STM32F303VCT6
STM32F103CBT6 STM32F103ZET6 STM32F205ZCT6 STM32F302RET6 STM32F303VET6
STM32F103CBU6 STM32F103ZGT6 STM32F205ZET6 STM32F302VCT6 STM32F303ZET6
STM32F103RBT6 STM32F105RBT6 STM32F205ZGT6 STM32F302VET6 STM32F401CBU6
STM32F103RCT6 STM32F105RCT6 STM32F207VCT6 STM32F303C8T6 STM32F401CCU6
STM32F103RET6 STM32F105VCT6 STM32F207VET6 STM32F303K8T6 STM32F401RBT6
STM32F103RRT6 STM32F205RCT6 STM32F207VGT6 STM32F303CBT6 STM32F401RCT6
STM32F103VCT6 STM32F205RET6 STM32F302C8T6 STM32F303CCT6 STM32F401VCT6
STM32F103VET6 STM32F205RGT6 STM32F302CBT6 STM32F303RBT6 STM32F401RET6
STM32F103VGT6 STM32F205VCT6 STM32F302CCT6 STM32F303RCT6 STM32F401VET6
STM32F030C8T6 STM32F205VET6 STM32F302RBT6 STM32F303RET6 STM32F411CCU6
STM32F072RBT6 STM32F030F4P6 STM32F107RBT6 STM32F030K6T6 STM32F030C6T6
STM32F411CEU6 STM32F405ZGT6 STM32F405VGT6 STM32F446ZET6 KA3525A
STM32F411RCT6 STM32F446RCT6 STM32F072C8T6 STM32F107RCT6 NCP1252ADR2G
STM32F411RET6 STM32F446RET6 STM32F072C8U6 STM32F107VBT6 LM358ADR
STM32F411VCT6 STM32F446VCT6 STM32F072CBT6 STM32F107VCT6 LM2904DT
STM32F411VET6 STM32F446VET6 STM32F072CBU6 STM32F407VET6 UC3843BVDR2G
STM32F405RGT6 STM32F446ZCT6 STM8S003F3P6 STM32F042C6T6 UC3842AN