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How to identify integrated circuit (IC) functions from their Xerox number

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On old Xerox boards all integrated circuits, chips, had an Xerox number to represent the name/number of the part. In many cases, the original part number was left out making it impossible to tell what the function was. Here is a list of Xerox part numbers and their standard part numbers

733W 0098 75189
733W 0318 74S00
733W 0319 74S04
733W 0321 74S260
733W 0321 74ALS260
733W 0339 7414
733W 0341 74279
733W 0351 74S257
733W 1523 74S189
733W 1531 25S10
733W 1550 AM27S07DC
733W 1594 8254-2
733W 1606 74S10
733W 1611 74S08
733W 1616 74S138
733W 1619 74S20
733W 1620 74S64
733W 1621 74S51
733W 1624 74S138
733W 1625 74LS240
733W 1626 74LS244
733W 1630 74S175
733W 1632 74S182
733W 1633 74S240
733W 1634 74S241
733W 1638 74S280
733W 1640 74S374
733W 1643 74S02
733W 1644 74S11
733W 1646 74S32
733W 1647 74S38
733W 1648 74S86
733W 1652 74S157
733W 1663 74LS393
733W 1675 74LS74
733W 1676 74LS191
733W 1682 10124
733W 1698 74LS374
733W 1699 74S373
733W 1706 74LS138
733W 1747 74LS259B
733W 1770 74LS163
733W 1771 74S74
733W 1802 16 MHz Xtal Osc
733W 1809 20 MHz Xtal Osc
733W 1823 K1100A (32MHz Xtal Oscillator)
733W 1911 75188
733W 1946 8251
733W 1970 AM25S09
733W 2136 74S37
733W 2137 74S151
733W 2226 8259A
733W 2234 AM2901C
733W 2249 8272
733W 2313 74ALS244
733W 2336 74ALS256
733W 2337 74ALS245
733W 2339 74ALS253
733W 2340 74ALS240
733W 2341 74ALS157
733W 2342 74ALS374
733W 2343 74ALS373
733W 2344 74AS373
733W 2359 MBC gate array
733W 2360 MDC gate array
733W 2361 8X305
733W 2365 AM27S27
733W 2366 AM27S29
733W 2369 MCA1300PKG/E5
733W 2380 MCA1300PLM/E4
733W 2395 74AS240
733W 2538 CY7C122-25PC (or AM9122-25)
733W 2550 C67402J
733W 2552 MK4501N-12
733W 3011 8254-2
733W 3012 74AS374 ??
733W 3012 74AS244
733W 3042 AM2901CPC
733W 3072 74AS157
733W 3073 74AS158
733W 3075 74AS352
733W 3078 74AS257


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