Source of Z80 Processors

garethrichardadams

Hi all,

After seeing the somewhat inflated prices that +2A's and +3's seem to be going for on eBay I'm wondering if trying to fix my 48k+ is a better option...

Can anyone point me towards a source of Z80 chips?

Thanks

gareth

garethrichardadams

Hmmm...I think it'll take a bit of reading to find out what I need!! You'd have thought they'd have a page saying what CPU was compatible with the old Z80A!!

Thanks

gareth

Quazar

Z80's are still manufactured by Zilog.

In the UK, Farnell (www.farnell.com/uk) is a suitable supplier:

Part Number Z84C0008PEG - 40 PIN DIP Z80, Max Speed 8MHz. (Z84C is the code for CMOS Z80 (the old NMOS ones were discontinued in the 90s), 0008 is the speed, PEC is packaging type - 40pin DIP, Lead Free)
Farnell Order Code: 1081890

Ignore some of the crap on the specs page, 256 byte RAM ... they've made a mistake, which is quite common for Farnell! It is the correct part listed and what you would want if replacing the Z80. I have to use the Z84C0008 when repairing SAM Coupés which are clocked at 6MHz.

They don't stock the slower 4 and 6 MHz versions, but don't get confused with clock speed - that is the maximum speed the chip is rated for, it will still run perfectly when clocked at 3.5MHz for a Speccy!

Colin.

Jose_Leandro

Hello

Quazar wrote: »

Z80's are still manufactured by Zilog.

Ignore some of the crap on the specs page, 256 byte RAM ... they've made a mistake, which is quite common for Farnell! It is the correct part listed and what you would want if replacing the Z80. I have to use the Z84C0008 when repairing SAM Coup?s which are clocked at 6MHz.
Colin.

Today, I put this model of z80 in a Spectrum +2A. It works perfectly

Bye

Jos? Leandro

Philip Kendall

Quazar wrote: »

Z80's are still manufactured by Zilog.

In the UK, Farnell (www.farnell.com/uk) is a suitable supplier:

[...]

If anyone cares, I've added this to the Tech Info wiki.

zxbruno

Valuable information. Thanks!

rich_chandler

The Tech Info wiki is fast becoming THE indispensable source of information for anyone doing anything interesting with or for the Spectrum.

Winston

If you're not ordering enough stuff from Farnell (for instance, you only need one Z80) they show up on ebay frequently enough for about a couple of quid.

Winston

aowen wrote: »

www.zilog.com ? I'm not sure if they still do pin compatible ones, but they certainly still make them.

They still make pin compatible ones, in 40 pin DIP packages (i.e. what you want for a Spectrum).

gtsamour

Here's a cheap choice

http://cgi.ebay.co.uk/ZILOG-Z80-PIO-4MHz-Z80A-CMOS-RETRO-COMPUTER-TESTED-OK_W0QQitemZ250204887352QQihZ015QQcategoryZ4663QQrdZ1QQssPageNameZWD1VQQtrksidZp1638.m118.l1247QQcmdZViewItem

Have fun

Alcoholics Anonymous

gtsamour wrote: »

Here's a cheap choice

http://cgi.ebay.co.uk/ZILOG-Z80-PIO-4MHz-Z80A-CMOS-RETRO-COMPUTER-TESTED-OK_W0QQitemZ250204887352QQihZ015QQcategoryZ4663QQrdZ1QQssPageNameZWD1VQQtrksidZp1638.m118.l1247QQcmdZViewItem

Have fun

This guy is confused. His title text mentions Z80A and PIO in one line and says they're CMOS. His description text talks PIO and says they're NMOS. The picture is of two CPUs but mentions the picture is an example only, not of the actual item. A PIO is not a CPU and from this ad who the hell knows what you're getting.

dasteph

You can get lots of 10 Z80C's from RS Components in the UK.
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&Ne=4294958891&Ntt=z80&Nr=AND%28avl%3auk%2csearchDiscon_uk%3aN%29&Ntk=I18NAll&Ntx=mode%2bmatchallpartial&N=4294955193+4294886977&Nty=1&binCount=10&selectAttribute=40DIP#breadCrumb

Oddly you can get them singularly from the Australian RS site..

beanz

At my old job we still bought these new for some of our printers. We bought direct off Zilog and they work fine in the old speccy....as a couple mysteriously ended up in 2 of mine.