1-PCS NEC D71055C-10 Parallel Interface IC 40-PDIP Package

NEC uPD71055C-10 Parallel Interface Unit IC 40-PDIP Package

Intel P8051AH 8-Bit Microcontroller MCS-51 40-Pin IC Chip @CPUCF

UMC UM6116-2 2K x 8-Bit High Speed CMOS Static Ram SRAM 24-Pin IC Chip @CPUCF

Pair NEC D7210C Digital Signal Processor DIP-40 Vintage IC Chip @CPUCD

NEC D446C-3 Parallel Interface Unit 24-Pin IC Chip @CPUCF

NEC D8255C Programmable Peripheral Interface Controller

*TWO* INTEL P8155 / P8155H, NEC D8155C - STATIC MOS RAM IO PORTS TIMER IC DIP-40