NEC uPD8255AC-2 Programmable Peripheral Interface (PPI) IC

OKI CMOS Programmable Peripheral Interface (Intel 8255A-2 Compatible) MSM82C55A-

NEC Programmable Peripheral Interface IC uPD8255AC-5

Mitsubishi CMOS Programmable Communication Interface IC M5M82C51AFP

TOSHIBA Programmable Interval Timer TMP82C54P-2

OKI Generic CMOS Programmable Peripheral Interface MSM82C55A-2RS

Toshiba CMOS Decimal Johnson Counter Logic IC TC74HC4017AP(F) (Set of 5)

Renesas CMOS Static RAM SRAM M5M51008DFP-55H#BT (Set of 2)