NEC Programmable Interval Timer uPD8253C-5 (Set of 2)

NEC Programmable Interrupt Controller uPD8259AC-2

NEC uPD8255AC-2 Programmable Peripheral Interface (PPI) IC

NEC uPD8279C-2 Programmable Keyboard/Display Interface IC

NEC Generic Programmable DMA Controller 5MHz uPD8257C-2

OKI MSM82C54-2GS-K CMOS Programmable Interval Timer

OKI MSM82C53-2RS CMOS Programmable Interval Timer IC

NEC 8-bit Parallel I/O Calendar Clock uPD4992CX-A (Set of 2)