iwarner@aero.axion.bt.co.uk (Ivan Warner) (11/10/89)
Does anybody have a pin out plus other info on the 6507 CPU. This is used in the Atari interface (850?) and the old 810 disc drive (not sure about the 1050). It is a 28 pin version of the 6502 (that's about all I know about it). 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, though companies like Farnell & RS don't have them. I thought I may be able to wire up a 6502 to do the job; but for this I need the pin out. Thanks in advance Ivan Warner.
ehs@jumbo.dec.com (Ed Satterthwaite) (11/12/89)
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
Ordania-DM@cup.portal.com (Charles K Hughes) (11/13/89)
RE: 6507 pinout Sorry, I don't happen to have the pinout but you can try your local library. Look for SAM's PHOTOFACTS and find the set for the 810, 850, or even the 2600. One of them should be available, and they would all have the pinouts. Ordania-DM @cup.portal.com
clutx.clarkson.edu (Pixel,,,) (11/14/89)
From article <1989Nov10.120237.29060@axion.bt.co.uk>, by iwarner@aero.axion.bt.co.uk (Ivan Warner): > Does anybody have a pin out plus other info on the 6507 CPU. This is > used in the Atari interface (850?) and the old 810 disc drive (not sure about > the 1050). It is a 28 pin version of the 6502 (that's about all I know about > it). > 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, > though companies like Farnell & RS don't have them. > I thought I may be able to wire up a 6502 to do the job; but for this > I need the pin out. > Uhmm....try looking in mail orders...._Antic_ magazine I know has one advertiser that sells a bunch of different chips and schematics.... Pixel cooleyra@clutx .clarkson.edu | .bitnet PS: I think I like this group; I thought that I was the only Atari enthusiast left--glad to see I was wrong:) :)