2x Genuine P8251A INTEL Programmable Communications Interface Controller IC NEW

2 x KR580VV51A = 8251A Soviet Intel Clone USART IC KP580BB51A KR580WW51A 8251 IC

1 x Genuine P8259A 8259 AMD 8086 8088 Programmable interrupt controller IC

Vintage Intel C8251 Very Rare version; 7540 date code! (ALL LEGS INTACT!!!) (M)

1 x SCN2651C Genuine SIGNETICS Programmable communications interface 2651 IC

1990s HP 3488A HP-IB Programmable Switch/Control Unit - Parts/Repair

1 x D8251AFC 8251 Programmable communication interface USART AM9551 iAPX86 IC

Vintage USSR chip KR580VV51A clone IC8251A.NOS.Lot of 2pcs.