80C51 AT89C513x Microcontroller IC 8-Bit 48MHz 32KB (32K x 8) FLASH 52-PLCC (19.15x19.15)..
8051 87F Microcontroller IC 8-Bit 24MHz 8KB (8K x 8) OTP Quick FLASH 44-PLCC (16.6x16.6)..
8051 87F Microcontroller IC 8-Bit 24MHz 20KB (20K x 8) OTP Quick FLASH 44-TQFP (10x10)..