In the Wiki, I saw a lot of list describing each number with its function. But do anyone know where to download the whole datasheets and might inside packed cabinets?
Hi, yes and no. Depends. You can find datasheets online,
but they're also being roughly described in printed semiconductor handbooks of the 1960s to 2000s.
For details, people had to buy them back in the day. Request them from the manufacturers.
Some did send a photocopy via snail mail or via telefax.
Anyway, the basic difference between 74xxx and 4000 series is type.
74 series used to be TTL, 4000 used to be CMOS.
This was before 74xxx getting CMOS types, too.
CMOS of the 4000 series was in its infancy back then.
Not in terms of features, maybe, but for vulnerability. ESD killed them easily.
That being said, there's a free semiconductor database for MS-DOS that I know of. IC-Database.
The free version has some advertisement, I think. Please read description.
https://www.youtube.com/watch?v=cMZK64LaUn0
"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel
//My video channel//
Jo22 wrote on 2025-04-24, 21:41:Hi, yes and no. Depends. You can find datasheets online, but they're also being roughly described in printed semiconductor handb […]
Hi, yes and no. Depends. You can find datasheets online,
but they're also being roughly described in printed semiconductor handbooks of the 1960s to 2000s.For details, people had to buy them back in the day. Request them from the manufacturers.
Some did send a photocopy via snail mail or via telefax.Anyway, the basic difference between 74xxx and 4000 series is type.
74 series used to be TTL, 4000 used to be CMOS.This was before 74xxx getting CMOS types, too.
CMOS of the 4000 series was in its infancy back then.
Not in terms of features, maybe, but for vulnerability. ESD killed them easily.That being said, there's a free semiconductor database for MS-DOS that I know of. IC-Database.
The free version has some advertisement, I think. Please read description.
https://www.youtube.com/watch?v=cMZK64LaUn0
What is ESD?
Source code?
Qwseyvnd wrote on 2025-04-25, 17:15:What is ESD?
Source code?
Hi, it is Electro-Static Discharge.
That electric charge that builds up when walking on a carpet.
It damages older CMOS chips easily. 4000 series, dynamic RAM (DRAM) used in old PCs with 8088 processor.
That's because the early CMOS chips had no internal protection yet.
CMOS chips made in the 1990 and later do have a little protection build in.
Here, electostatic charge gets shorted internally. There are tiny lightning rods built-in, so to say.
Little gaps in which charges jump over and short.
There are also protective-diodes built-in, sometimes. Speaking under correction, though. I'm just a layman here.
"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel
//My video channel//
If you are willing to buy some books, "TTL Cookbook" and "CMOS Cookbook" by Don Lancaster are both great reference guides.
Both books also have a section with datasheets and pinouts.
OK. Thank for information.
here's a "pocket" data book from ti for quick reference that you might find usefull, it's only about 800 pages long. The stuff you are probably interested in starts around page 166.
https://drive.google.com/file/d/1Z21SV6cut6bK … iew?usp=sharing
I tried attaching it to this post but it exceeds the file size limit. If there is a better/easier way to share the file let me know.
grjr wrote on 2025-05-03, 00:32:here's a "pocket" data book from ti for quick reference that you might find usefull, it's only about 800 pages long. The stuff you are probably interested in starts around page 166.
https://drive.google.com/file/d/1Z21SV6cut6bK … iew?usp=sharing
I tried attaching it to this post but it exceeds the file size limit. If there is a better/easier way to share the file let me know.
That is a good quick reference. Suggest looking at Bitsavers TI section. http://www.bitsavers.org/components/ti/_dataBooks/
The 1975 Cmos and 1976 TTL are what I first learned from when in college 1978...
http://www.bitsavers.org/components/ti/_dataB … _Data_Book_2ed/
http://www.bitsavers.org/components/ti/_dataB … gineers_3ed.pdf
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
Horun wrote on 2025-05-03, 00:57:That is a good quick reference. Suggest looking at Bitsavers TI section. http://www.bitsavers.org/components/ti/_dataBooks/ The […]
grjr wrote on 2025-05-03, 00:32:here's a "pocket" data book from ti for quick reference that you might find usefull, it's only about 800 pages long. The stuff you are probably interested in starts around page 166.
https://drive.google.com/file/d/1Z21SV6cut6bK … iew?usp=sharing
I tried attaching it to this post but it exceeds the file size limit. If there is a better/easier way to share the file let me know.
That is a good quick reference. Suggest looking at Bitsavers TI section. http://www.bitsavers.org/components/ti/_dataBooks/
The 1975 Cmos and 1976 TTL are what I first learned from when in college 1978...
http://www.bitsavers.org/components/ti/_dataB … _Data_Book_2ed/
http://www.bitsavers.org/components/ti/_dataB … gineers_3ed.pdf
Okay, I have already download those files till a external hard drive.
