‧ Only 42 single word instructions ‧ All instructions are single cycle except for program branches which are two-cycle ‧ 13-bit wide instructions ‧ All ROM/EPROM area GO.

AT80251G2D

AT804

AT804S16

AT805

AT807

AT8083

AT80C31X2

AT80C32X2

AT80C5112

AT80C51RA2

AT80C51RD2

AT80C51SND1C

AT80C52X2

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