Failed ICs and components

Rik Bos hp-fix at xs4all.nl
Mon Feb 16 03:42:07 CST 2015


I made an inventory of the defective TTL’s I have, other than I initially though there is a reasonable spread over types and brands.

Other than the NS DM7400 there are no types with an extensive failure rate.

The list talks for itself.

 

-Rik

 


Type

HP Number 1820-

Quantity

Brand

CER

Date

						

7495AN

	1

Siemens

	7417


8H08/74H08

	1

??

	PCF7427


93L00PC

	1

		7302


9N03/7403

	1

Fairchild

	7328


DM7400N

	14

National Semiconductor

	352,422,424,401,351,435,315,215


DM7403N

	4

National Semiconductor

	315


DM7404N

	5

National Semiconductor

	317,315


DM7408N

	2

National Semiconductor

	307


DM7410N

	2

National Semiconductor

	308,217


DM74121N

	6

National Semiconductor

	313,315,314


DM74195N

	1

National Semiconductor

	241


DM7420N

	1

National Semiconductor

	211


DM7432N

	2

National Semiconductor

	314,413


DM7474N

	5

National Semiconductor

	435,349


DM7493N

	1

Texas Instruments

	7252


DM7495N

	2

National Semiconductor

	242,241


DM74H00N

	1

National Semiconductor

	334


DM74H08N

	1

National Semiconductor

	229


DM74L00N

	1

National Semiconductor

	337


DM74L04N

	3

National Semiconductor

	313,351


DM74L10N

	1

National Semiconductor

	423


DM74L74N

	1

National Semiconductor

	316


DM74L86N

	1

National Semiconductor

	317


DM74LS373N

	1

National Semiconductor

	8005


N8885A

	1

Signetics

	7402


N8T20N

1048

1

Signetics

	7915


SN7400J

	1

Texas Instruments

	7313


SN7400N

	2

Texas Instruments

	7405,7335


SN7402N

	1

Texas Instruments

	AS7419


SN7404N

	3

Texas Instruments

	7344,7402,AS7406


SN7406N

0471

1

Texas Instruments

	8044S


SN7407N

0668

2

Texas Instruments

	H7845,AS7414


SN74107N

	2

Texas Instruments

	7945B,7414


SN74121J

	1

Texas Instruments

X

7326


SN74123N

0579

4

Texas Instruments

	7406,8014


SN74155N

	2

Texas Instruments

	7222


SN7416N

	1

Texas Instruments

	AHA741


SN74191N

	1

Texas Instruments

	M7628


SN74193N

	3

Texas Instruments

	FF7606,FF7536


SN74193N

	1

Texas Instruments

	7516


SN7451N

	1

Texas Instruments

	7427


SN7474N

	1

Texas Instruments

	7339


SN7475N

	1

Texas Instruments

	7349


SN7493AN

	1

Texas Instruments

	7235


SN7493AN

	1

Texas Instruments

	AS7344


SN7495AN

	4

Texas Instruments

	BS7402,7227,7244


SN7495N

	1

Texas Instruments

	7401


SN7496N

	1

Texas Instruments

	M7331


SN74H00N

	1

Texas Instruments

	7135


SN74H01N

	1

Texas Instruments

	BS7423


SN74H01N

	1

Texas Instruments

	7252


SN74H04N

	2

Texas Instruments

	7527,AS7406


SN74H101N

	2

Texas Instruments

	7217,7336


SN74H108N

	1

Texas Instruments

	7205


SN74H40N

	1

Texas Instruments

	7510


SN74H74N

0512

1

Texas Instruments

	7419


SN74L04N

	2

National Semiconductor

	218,313


SN74L42N

	1

Texas Instruments

	7312A


SN74LS00N

	1

Texas Instruments

	M7523


SN74LS03N

	3

Texas Instruments

	7945


SN74LS08N

1201

1

Texas Instruments

	7801


SN74LS244N

	1

Texas Instruments

	8432B


SN74LS257AN

1438

1

Texas Instruments

	7927B


SN74S04N

	1

Texas Instruments

	UK7949


SN74S374N

	2

Texas Instruments

	M7919X,F9022X


7400

0054

1

Motorola

	7315


7410

0068

2

Motorola

	7245,7443


7473

0075

1

National Semiconductor

	217


7474

0077

2

National Semiconductor

	212


74H08

0141

6

National Semiconductor

	228,217,604,229,228


MC3001

0141

1

Motorola

	7326


7404

0174

1

National Semiconductor

	543


7405

0175

1

National Semiconductor

	037M


7405

0175

1

National Semiconductor

	947


MC3003 /  74H32

0205

1

Motorola

	7513


74121

0261

1

Texas Instruments

	7410


74121

0261

1

National Semiconductor

	425


7403

0269

4

National Semiconductor

	345,428


CA3028A

0306

1

National Semiconductor

	413


7402

0328

2

National Semiconductor

	527,532


7402

0328

1

Motorola

	7248


74H00

0370

1

Motorola

	7413


74H00

0370

1

Fairchild

	7237


74H40

0376

1

Motorola

	7334


74H04

0424

1

National Semiconductor

	231


7408

0511

6

Fairchild

	F7421,F7407,F7409,F7428


7413

0537

1

National Semiconductor

	533


74L00

0583

1

National Semiconductor

	521


74L02

0584

3

National Semiconductor

	222,231


74L10

0587

1

National Semiconductor

	514


74L30

0589

1

National Semiconductor

	232


74L54

0591

1

National Semiconductor

	521


74L74

0596

1

Fairchild

X

SL3459


74L86

0598

3

National Semiconductor

	405


9322PC

0616

1

Fairchild

	352


9322PC

0616

1

Fairchild

X

7221


9324PC

0706

1

Fairchild

	7735


9328PC

0741

2

Fairchild

X

7240,7309


74C175

1562

2

Signetics

	L147,B104


74C175

1562

1

National Semiconductor

	011

 

 


-----Oorspronkelijk bericht-----
Van: "Kyle Owen" < <mailto:kylevowen at gmail.com> kylevowen at gmail.com>
Verzonden: ‎11-‎2-‎2015 23:57
Aan: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Onderwerp: Failed ICs and components


I am writing my master's thesis on accelerated life testing and would like
to get a collection of parts to decap and experiment on. What prompted my
study is a failed 7474 dual flip-flop in a PDP-8/E. As I later read (on
here, I believe) was that the 7474s seem to fail in higher number than
other 7400-series ICs. Is this because of a design flaw? I'm not sure
(yet), but would like to find out.

More recently, I saw a 680k 2W carbon resistor that read 1.3 meg out of
circuit. As it turns out, it was in a high voltage portion of the circuit,
and I suspect that electromigration caused its failure over time. Many of
you are probably already aware that carbon resistors tend to increase in
value as they age, though there are a few explanations too for that
behavior, as I understand it.

I would like to tie all of this together by researching older accelerated
life testing schemes, examine how those parts actually fared, and see how
current day models might be improved.

If anyone has a collection of dead ICs (preferably those that have died
inexplicably, and not by extreme overvoltage, for instance), I would like
to talk to you about getting a few. If they are 7474s from Texas
Instruments, ca. early 1970s, even better!

Thanks in advance,

Kyle

 



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