87C51/80C51BH/80C31BH CHMOS SINGLE-CHIP 8-BIT MICR.
P80C31BH - (P80C31BH / P80C51BH) CHMOS Single-Chip 8-Bit Microcontroller
P80C51BH - (P80C31BH / P80C51BH) CHMOS Single-Chip 8-Bit Microcontroller
TP80C31BH - (TP8xCx1BH) CMOS Single-Chip 8-Bit Microcontroller