hello
well, the memory use different localities in which you can write A-0 means the first bit, A-1 de second bit successively you can do different combinations and you can write in these
for example
la location 000000000000
0000000000001
0000000000010
successively
if you want especifications you send me other e-mail
no problem
good BYE



From: Fred Townsend <[EMAIL PROTECTED]>
Reply-To: [email protected]
To: Multiple recipients of list CHIPDIR-L <[email protected]>
Subject: Re: Very dumb question about adress line A-1 (!)
Date: Fri, 06 May 2005 09:20:33 -0800

Are you asking if this information is accurate or why did they do it that way?

I can only guess. It may be that this facilitates some interleaved addressing mode. I once saw where Apple swapped pins so their EROMs would not be interchangeable with the standard product.

Fred Townsend

Alexandre Souza wrote:

   Well, this is a very dumb question. Sorry for that.

I'm creating a circuit using the 27C160 EPROM memory in BYTE mode. The pin
Q15/A-1 has the function A-1 in the BYTE mode. I'm so sorry, but it means that
the memory is adressed A-1, A0, A1, A2 instead of A0, A1, A2...A-1????


   Thanks
   Alexandre Souza

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