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Re: Unknown chips
- Subject: Re: Unknown chips
- From: budgeco@ix.netcom.com(John Schreiber )
- Date: 1995/12/09
- Newsgroups: comp.sys.apple2
- Organization: Netcom
- References: <4aah41$k0l@st-james.comp.vuw.ac.nz>
In <4aah41$k0l@st-james.comp.vuw.ac.nz> Rob Thomson
<Rob.Thomson@vuw.ac.nz> writes:
>
>Hello,
>I have 3 chips that I have no idea what they are.
>The first one is a 16-pin chip. It has "MCM4116AC20" printed on it.
>2nd is a 20-pin chip and has a 2 lots of white writing on it, the
first
>lot has "341-0005-01 Apple 1978 P5" 2nd lot is "Singapore 8009X 471
TBP18S22N"
>3rd chip is another 20-pin device and again has 2 lots of printing on
it:
>"641-0010-00 Apple 1978 8P6" and "SINGAPORE 8014X 471 TBP18S22N"
>
>Thanks for any help,
>
>Rob.
>
The first chip is a ram chips commonly used on the Apple II and II+. 8
of them = 16k. The speed is 200 nanoseconds.