Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!apple!fernwood!decwrl!jumbo!ehs
From: ehs@jumbo.dec.com (Ed Satterthwaite)
Newsgroups: comp.sys.atari.8bit
Subject: Re: Info on the 6507 CPU
Summary: 6507 pinout
Message-ID: <14209@jumbo.dec.com>
Date: 11 Nov 89 17:17:28 GMT
References: <1989Nov10.120237.29060@axion.bt.co.uk>
Organization: DEC Systems Research Center, Palo Alto
Lines: 41

In article <1989Nov10.120237.29060@axion.bt.co.uk>,
iwarner@aero.axion.bt.co.uk (Ivan Warner) writes:
> 	Does anybody have a pin out plus other info on the 6507 CPU. This is

From an old Synertek data book:

  1 RES\            28 PHI2 (out)
  2 Vss (Gnd)       27 PHI0 (in)
  3 RDY             26 R/W\
  4 Vcc (+5)        25 D0
  5 A0              24 D1
  6 A1              23 D2
  7 A2              22 D3
  8 A3              21 D4
  9 A4              20 D5
 10 A5              19 D6
 11 A6              18 D7
 12 A7              17 A12
 13 A8              16 A11
 14 A9              15 A10     

An and Dn are address and data bus lines respectively.

> 	I need to replace the 6507 in the interface unit, but am having no
> luck in finding anywhere to buy one.  Suggestions for UK suppliers also
> welcome, ...

In this country, Jameco Electronics (see most any US PC magazine for ads)
still has the 6507 at a close-out price of $2.95.  Their catalog claims
that they accept foreign orders, but the combination of minimum order and
foreign postage/handling probably makes this uneconomic.

> thought I may be able to wire up a 6502 to do the job; but for this I
> need the pin out.

I believe that the 6502 and 6507 are the same chip internally, with
different signals brought out to the pins, so this ought to work.  Just
tie the unused 6502 inputs high or low as appropriate.

Ed Satterthwaite
ehs@src.DEC.COM  {...}!decwrl!ehs