MM5232AE by National Semi

[c a l a n d e]

Can someone please identify this 24-pin chip?

Datasheet link if possible.

TIA

 

[Matthieu Benoit]

as this site http://www.searchdatasheets.com/search.asp?q=MM5232-1&t=

you may have a description of the chip
MM5232J
Manufacturer - National Semiconductor Corp - x4 or x8 ROM (Mask
Programmable)
Datasheet - MM5316 nation..., MM5316N, MM53200, MM5368N Nation...,
more..
CrossReference - MM5450 Nation... = MM5450 Micrel..., MM5450 Micrel... =
MM5450 Nation..., more..
Pcn - MM5452V nation... Alternate Assembly Site...., MM5452V nation...
Qualification of Alternative A..., more..

MB
--
http://matthieu.benoit.free.fr/


c a l a n d e wrote:

Can someone please identify this 24-pin chip?

Datasheet link if possible.

TIA

 

[Mark Zenier]

c a l a n d e <r86calande@earthlink.net> wrote in message news:<hZEfc.11959$k05.9515@newsread2.news.pas.earthlink.net>...

Can someone please identify this 24-pin chip?

Datasheet link if possible.

TIA
It's an antique 512x8/1024x4 bit factory programmed PMOS ROM.

I scanned it and will load it to
ftp://ftp.eskimo.com/u/m/mzenier/MM5232.pdf

It's not a very informative datasheet, (also those old newsprint
databooks don't scan well), but it should be enough for you
to figure it out. There's the not very well documented Mode
pin, and the two chip enables are configurable to use either
logic level.

If you want the information in National's 1977 Memory
Applications Handbook that tell you how to format the data onto
punched cards to send to the factory, I can scan that, too. ;-)

Mark Zenier mzenier@eskimo.com Washington State resident

 

[c a l a n d e]

Mark Zenier wrote:

c a l a n d e <r86calande@earthlink.net> wrote in message news:<hZEfc.11959$k05.9515@newsread2.news.pas.earthlink.net>...

Can someone please identify this 24-pin chip?

Datasheet link if possible.

TIA

It's an antique 512x8/1024x4 bit factory programmed PMOS ROM.

I scanned it and will load it to
ftp://ftp.eskimo.com/u/m/mzenier/MM5232.pdf

It's not a very informative datasheet, (also those old newsprint
databooks don't scan well), but it should be enough for you
to figure it out. There's the not very well documented Mode
pin, and the two chip enables are configurable to use either
logic level.

If you want the information in National's 1977 Memory
Applications Handbook that tell you how to format the data onto
punched cards to send to the factory, I can scan that, too. ;-)

Mark Zenier mzenier@eskimo.com Washington State resident

Thanks Mark, the datasheet will be more very helpfull.