Last updated July 29 2020 (C) Herb Johnson addition Apr 2024 (c) Herb Johnson these are Intel P4001 chips as seen at various places or Intel boards where P4001 chips are found or missing. The Intel 4001 was mask-programmed at the factory by Intel. I'd like to match chips with boards - please inform me. - Herb thanks for info to: Richard Main, and various uncredited persons who show photos of these cards and 4001's at various places (he he) ----------------------------- Sales or owned Intel boards with 4001's and related last updated Oct 1 2020 (c) Herb Johnson pwa 1002488-05 rev C upp-833 2732/64/ personality bd ebay pwa 1002488-06 rev M upp-833 personality bd ebay top row A5 P4001 1035 / 8136 / 102817-001 top row A6 P4001 1034 / 8135 / 102816-001 pwa 1002488-?? rev ? upp-833 2732/64/ personality bd ebay top row A5 P4001 1035 / 7925 / 9100242 top row A6 P4001 1034 / 7925 / 9100241 pwa 1000964-03 rev g 2716 (c) 1976 ebay bottom row chip has label middle row P4001 1015 / 8021 / 101476-001 top row j1 socket no jumpers pwa 1000366-?? rev D Prom Pgmr control ebay top row 4040, A6 and A7 empty sockets 2nd row A10 P4001 0197 / 7747 PPOC10? 3rd row A20 P4001 0936 / 7744 PPOC00? 4th row A29 P4001 0865 / B / 7745 PPOC01 pwa 1000366-04 rev F Prom Pgmr control top row 4040, A6 and A7 empty sockets 2nd row A10 P4001 0937 / 7882 PPOC10 3rd row A20 P4001 overwritten 52-??? 4th row A29 P4001 0865 / B / 7834 BJPPOC01 3604A card on my site 2nd row A22 P4001 1024 / 7747 PPIP88 or 38? bottom row A31 P4001-0381 / B / 7744 PP0P39 pwa 1002488-06 rev J or T? upp-833 personality bd top row A5 P4001 1035 / 8045 / 102817-001 top row A6 P4001 1034 / 8109 / 104591-001 pwa 1000964-02 rev D 2716 (c)1976 bottom row P4001 0941 / 7751 PP0P29 middle row P4001 1015 / 7748 PP1P78 top row J1 socket J2 jumpers 5-12 7-10 pwa 1000964 2716 (c) 1976 - UPP PROM board bottom row P4001 0941 / 7822 PP0P29 middle row P4001 1015 / 7827 PP1P78 top row J1 socket J2 jumpers 5-12 7-10 pwa 1000444 3604 (c) 1975 bottom row A14 P4001 0381 / 7518 PP0P39 bottom row A15 P4001 0855B / 7543 PP0?01 PWA 1001506-01A 3604A - UPP PROM board 2nd bottom row A22 P4001 1024 / 7747 PP1P88 bottom row A31 P4001 0381 / 7744 PP0P39 pwa 1000735-01C 8748 (c) 1976 - UPP PROM board bottom row A16 P4001 0941 / 7?30 PP0P29 bottom row A17 P4001 1012 / 7751 PP1P68 bottom row a18 P4002-1 / 1384C pwa 10001132-02 8755 (c) 1976 - UPP PROM board bottom row A16 P4001 0941 / 7647 PP0P29 bottom row A17 P4001 1012 / 7708 PP1P68 bottom row a18 P4002-1 / 3014A pwa 1000433-01 2708 (c) 1975 bottom row A11 empty middle row A5 empty top row J1 socket pwa 1002488-06J 2732/64 (C) 1979 - UPP-833 top row A5 P4001 1035 / 8045 / 102817-001 top row A6 P4001 1049 / 8109 / 104591-001 pwa 1000366 Control (c) 1975 <-- UPP control board A29 = PP0CO1, A20 = PPOC00, A10 = PP0C10 A5 empty 24-pin = 4040 pwa 1000444 3604 (c) 1975 bottom row A14 P4001 0381 / 7518 PP0P39 bottom row A15 P4001 0855b / 7543 PP0?01 (C?) pwa 1000444-01 3604 (c) 1975 bottom row A14 P4001 0381 / 7701 / PP0P39 B bottom row A15 P4001 0915 or 8? / 7546 PPOP48 pwa 100096? 2716 (c) 1976 bottom row A12 P4001 0941 / 7822 PP0P29 middle row A6 P4001 1015 / 7827 PP1P78 top row J1 socket J2 jumpers 5-12 7-10 pwa 0000736-01C 2716 (C) 1976 A16 p4001 0941 / 7630 PP0P29 A17 P4001 1012 / 7751 PP1P68 A18 P4001-1 1384C pwa 1001132-02B. 8755 hand-tagged bottom row A16 P4001 0941 / 7647 PPOP29 bottom row A17 P4001 1012 / 7708 PPIP?8 PWA 1000366- UPP 4040 control board A29 - C4001 0865 /7549B PP0C01 A20 - P4001 0936 / 7632 PP0C00 A10 - P4001 0937 / 7628 PP0C10 Found on an 4004 unknown instrument Nov 2022 P4001 0544 / 7419 PVP002 P4001 0542 / 7419 PVP000 P4001 0550 / 7419 PVP008 C4001 0548 / 7411 PVP006 P4001 0549 / 7419 PVP007 P4001 0546 / 7409 PVP004 P4001 0545 / 7409 PVP003 P4001 0543 / 7419 PVP001 P4001 0547 / 7409 PVP005 ================================ that-auction-web-site sales of 4001 chips, last updated Apr 2024 National Semiconductor INS4004 s* - 752 / INS4001-P8 / 230290 ?? - INS4001EKP/D, EKN/D, EKM/D, EKL/D - T shaped board 725, 727, 729 s* - INS4001-P0 230282 7646 "from an instrument" s* - INS4001-P1 230283 7630 s* - INS4001-P2 230284 7727 s* - INS4001-P3 230285 7717 s* - INS4001-P4 230286 7717 s* - INS4001-P6 230288 7717 s* - INS4001-P7 230289 7729 s* - INS4001-P9 230291 7637 s* - INS4001-16A 230332 707 s* - INS4001-17A 230333 7650 s* - INS4001-19A 230325 7650 s* - INS4001-20A 230327 7650 s* - INS4001-21A 230328 7650 National lot, Mar 2024 INS4001-0 706 INS4001-1 /711 INS4001-2 533 INS4001-3 536 INS4001-5 /724 INS4001-6 /712 INS4001-7 535 INS4001-8 532 INS4001-9 /707 INS4001-16A 230332 /712 INS4001-18A 230334 /717 INS4001-19A 230325 /725 INS4001-21B 230349 /730 Intel A* - 4001 0812 / 8013 BI 00C024 A* - P4001 0952 / 7916 214064 A* - P4001 0690 / 7605 178137 A* - p4001 0814 / 8020 BI 0032000-44 -- - p4001 0814 / 8051 BI 0032000-44 m* - P4001 0951 / 7619 214056 m* - p4001 0668 / 7505 180968 m* - p4001 0668 / 7507 180968 k* - P4001 0813 / 8106 BI 0032000-34 s* - P4001 0739 / 7721 053113 s* - P4001 0729 / 7645 051103 s* - C4001 0735 / 7645 053109 s* - P4001 1035 / 7006 9100242 s* - P4001 1012 / 7751 PP1P68 s* - P4001 0295B/ 7524 PP0C01 s* - P4001 0670 / 7428 180984 A* - P4001 0670 / 7428 180984 v* - P4001 0670 / 7501 180984 s* - P4001 0726 / 7710 053100 s* - P4001 0733 / 7709 053107 h* - P4001 0937 / 8102 PP0C10 n* - P4001 0815 / 8036 BI 0032000-54 a* - P4001 0250 / 7720 HLROM0 a* - P4001 0252 / 7720 HLROM2 c* - C4001 0486 / 7430 6-7003 ss - C4001 1024 / 7841 PPIP88 ss - C4001 0941 / 7614 PPOP29 g* - C4001 0486 / 7334 67003 g* - C4001 0491 / 7347 6-7008 ku*- P4001 0323 / 240 146454 2n*- P4001 0669 / 7415 180976 m* - P4001 0669 / 7420 180976 mo*- P4001 0672 / 7502 182634 a* - P4001 0672 / 7428 182634 t* - P4001 0613 / 7513 C13488 v* - P4001 0885 / 7704 C13487 g* - P4001-0009 / 85227 ;Intel eval ?? - P4001 0950 / 7640 214049 v* - P4001 0950 / 7641 214049 gi - P4001 0666 / 7409 WLM-F0 l* - C4001 0701 / 7420 6-7545 z* - P4001 0949 / 7850 BI 00D015 ** - C4001 0487 / 7408 6-7004 ;cer gold/grey traces ** - C4001 0491 / 7441 6-7008 ;cer gold/grey traces 2 pins damaged ** - C4001 0487 / 7447 6-7004 ;cer gold/grey traces -- - C4001 0489 / 7430 6-7006 ;cer gold/no traces v* - P4001 0329 / 7340 14644 v* - P4001 0381 / 7824 / PP0P39 B ; see Intel UPP card