"Programmer Electronic Control"

PartNo. 51-019-02, NSN 1680-99-652-3410,
Supplier KO656, Marconi Avionics, UK

- Chips used and date code statistics by Erik Baigar, 8.6.2008, www.baigar.de -

The unit contains 497 chips, mainly of the military TTL 54xx series. Statistics of
the date codes printed on the chips of the 15 processor PCBs of unit number 129 looks
like this:

Conclusion: Unit manufactured in or after 1983!

The following gives a survey on the different chips used in the PEC. Since 6/17/2008 all chips used in the
whole unit are identified! The first four are custom chips made by CMC in Canada (MFR90073). But since they
where only made a very short period of time, CMC was not able to supply any information. Instead comments
from people on the WEB and measurements on the chips revealed their purpose/contents:

[214017_MFR90073.jpg]
214017_MFR90073.jpg
56899 bytes
383 x 469
 [214018_MFR90073.jpg]
214018_MFR90073.jpg
60623 bytes
413 x 427
 [214020_MFR90073.jpg]
214020_MFR90073.jpg
80457 bytes
475 x 529
 [339-446_MFR90073_67PS00205.jpg]
339-446_MFR90073_67PS00205.jpg
67850 bytes
312 x 784
 [339-446_MFR90073_67PSC0205.jpg]
339-446_MFR90073_67PSC0205.jpg
41959 bytes
271 x 425
MFR90073
Part No. 214-017
Week 12/1981		 MFR90073
Part No. 214-018
Week 44/1981		 MFR90073
Part No. 214-020
Week 19/1982		 MFR90073
Part No. 339-446
67 PS 00205
Week 15/1981		 MFR90073
Part No. 339-446
67 PS 00205
Week 15/1981
[214-017_12ResistorArray.gif] [214-018_8ResistorArray.gif] [214-020_5InputProtector.gif] [339-449_3CouplingNetworks.gif] [339-449_3CouplingNetworks.gif]

The following chips are more or less standard TTL parts, where the unit exclusively
makes use of the MIL-SPEC versions of them (i.e. the 54xxx variant):
[5400_4NAND2Input.gif]
5400_4NAND2Input.gif
10557 bytes
799 x 317
 [5402_4NOR2Input.gif]
5402_4NOR2Input.gif
13049 bytes
779 x 370
 [5403_4NAND2InputOC.gif]
5403_4NAND2InputOC.gif
16646 bytes
490 x 369
 [5404_6Inverter.gif]
5404_6Inverter.gif
6303 bytes
407 x 299
 [5408_4AND2Input.gif]
5408_4AND2Input.gif
11816 bytes
789 x 318
[5410_3NAND3Input.gif]
5410_3NAND3Input.gif
6385 bytes
649 x 222
 [5411_3AND3Input.gif]
5411_3AND3Input.gif
7878 bytes
671 x 337
 [54121_MonoFlop.gif]
54121_MonoFlop.gif
9480 bytes
443 x 489
 [5412_3NAND3Input.gif]
5412_3NAND3Input.gif
6066 bytes
293 x 321
 [54148_9813_8BitPriorityEncoder.gif]
54148_9813_8BitPriorityEncoder.gif
12223 bytes
449 x 428
[54153_2Mal4To1MUX.gif]
54153_2Mal4To1MUX.gif
29563 bytes
826 x 486
 [54155_2Mal1To4MUX.gif]
54155_2Mal1To4MUX.gif
18522 bytes
664 x 436
 [54157_QuadMux2To1.gif]
54157_QuadMux2To1.gif
20785 bytes
641 x 624
 [5415_3AND3InputOC.gif]
5415_3AND3InputOC.gif
16206 bytes
507 x 391
 [54161_4BitCounterResettable.gif]
54161_4BitCounterResettable.gif
9898 bytes
426 x 393
[54164_8BitSerInParOutShiftReg.gif]
54164_8BitSerInParOutShiftReg.gif
14197 bytes
550 x 447
 [54165_8BitSerParInSerOutShiftReg.gif]
54165_8BitSerParInSerOutShiftReg.gif
10463 bytes
397 x 352
 [54174_6DFlipFlop.gif]
54174_6DFlipFlop.gif
16124 bytes
629 x 435
 [54175_4DFlipFlop.gif]
54175_4DFlipFlop.gif
9422 bytes
537 x 294
 [54183_DualCarrySlaveAdder.gif]
54183_DualCarrySlaveAdder.gif
10576 bytes
501 x 453
[5420_2NAND4Input.gif]
5420_2NAND4Input.gif
7761 bytes
662 x 316
 [5427_3NOR3Input.gif]
5427_3NOR3Input.gif
10079 bytes
484 x 409
 [5430_NAND8Input.gif]
5430_NAND8Input.gif
35611 bytes
470 x 676
 [5432_4OR2Input.gif]
5432_4OR2Input.gif
9255 bytes
740 x 280
 [5437_4NANDbuffer2Input.gif]
5437_4NANDbuffer2Input.gif
11478 bytes
525 x 430
[5438_4NANDbufferOC2Input.gif]
5438_4NANDbufferOC2Input.gif
8865 bytes
479 x 340
 [5442_BCDtoDecimalDecoder.gif]
5442_BCDtoDecimalDecoder.gif
24889 bytes
629 x 716
 [5474_2JKFlipFlip.gif]
5474_2JKFlipFlip.gif
14314 bytes
402 x 590
 [5475_QuadLatch.gif]
5475_QuadLatch.gif
20941 bytes
665 x 426
 [5483_4BitFullAdder.gif]
5483_4BitFullAdder.gif
19969 bytes
595 x 419
[5485_MagnitudeComparator.gif]
5485_MagnitudeComparator.gif
7105 bytes
489 x 311
 [5490_DecadeCounter.gif]
5490_DecadeCounter.gif
9011 bytes
447 x 327
 [5492_DivideBy12Counter.gif]
5492_DivideBy12Counter.gif
8742 bytes
423 x 325
 [5493_BinaryCounter.gif]
5493_BinaryCounter.gif
8747 bytes
423 x 338
 [5495_4BitBiDirParallelShiftReg.gif]
5495_4BitBiDirParallelShiftReg.gif
15846 bytes
560 x 457
[55107_DualLineReceivers.gif]
55107_DualLineReceivers.gif
8411 bytes
425 x 288
 [55182_DualDiffReceiver.gif]
55182_DualDiffReceiver.gif
8584 bytes
298 x 287
 [55183_DualDiffDriver.gif]
55183_DualDiffDriver.gif
8457 bytes
302 x 300
 [55234_SenseAmplifier.gif]
55234_SenseAmplifier.gif
28960 bytes
585 x 893
 [55325_CoreMemoryDriver.gif]
55325_CoreMemoryDriver.gif
26017 bytes
884 x 413
[55453_DualPeripheralDriver.gif]
55453_DualPeripheralDriver.gif
6515 bytes
297 x 401
 [6N134_DualOptoCoupler.gif]
6N134_DualOptoCoupler.gif
4987 bytes
195 x 263
 [CD40106B_6SchmittTriggerInverter.gif]
CD40106B_6SchmittTriggerInverter.gif
7638 bytes
398 x 546
 [MHQ4014_QuadTransistor.gif]
MHQ4014_QuadTransistor.gif
25204 bytes
744 x 320

Generated using HTMLThumbnail 1.1.4 by Dr. Erik Baigar on
SGI/I2, 17.6.2008, Impressum: HERE.