4000, 7400, 5400, 7300? series IC's

[Jeff eelcr]

What was 7300 series and where to find info?
Jeff

More info:
Some are newer than that book, PCF7325, and PCF7328 others were listed these are all Phillips/NPX.
I assume the equipment was designed in the early 70's now.

[fzabkar]

National Semiconductor had a DM9300 TTL series ...

[Benta]

Never heard of 7300.

[amyk]

Do you have more info on where you heard about "7300 series"?

My usual sources of information on old logic IC families yields no results.

[ArdWar]

Acording to 70s databook 5300s and 7300s are "Modified DTL" (in lieu of 5400 and 7400 being TTL?)

The sequence aren't interchangeable. 7300 for example is a JKFF

[fzabkar]

https://mirrorservice.org/sites/www.bitsavers.org/components/ti/_dataBooks/1967-68_TI_Integrated_Circuits.pdf

[Jeff eelcr]

Thanks, now that I had a chance to look at my list instead of my memory 1 item was listed the 7331 no others so still looking for:NPX IC's datasheets PCF7317, 7319, 7325, 7328, and 7333 maybe replacements SN53xx
Jeff

[amyk]

I suspect you're looking at the wrong thing unless those ICs you refer to are from the late 60s. Philips/NXP PCF73xx are much newer proprietary ICs (seems mostly automotive-security related) and not simple logic blocks unlike the 7300 series that we did manage to find in this thread.

[fzabkar]

This datasheet suggests that the PCF73xx chips are the ROM versions of the PCF79xx E-ROM chips:

https://media.digikey.com/pdf/Data%20Sheets/NXP%20PDFs/PCF7x41ATJ.pdf