- AT89C5131A-RDTILIC 8051 MCU FLASH 32K USB 64VQFP|ATMEL|Lead All|RoHS Mixed
- AT89C5131A-PUTIMIC 8051 MCU FLASH 32K USB 32QFN|ATMEL|Lead All|RoHS Mixed
- AT89C5131A-S3SIMIC 8051 MCU FLASH 32K USB 52PLCC|ATMEL|Lead All|RoHS Mixed
- AT89C5131A-TISILIC 8051 MCU FLASH 32K USB 28SOIC|ATMEL|Lead All|RoHS Mixed