zilog z0860008psc

[deames]

I have a zilog z0860008psc chip. Anyone know what it is and happen to have a pinout for it ?

[Crazy Ape]

Read the line after that number, the one that says "Z80 CPU", it should give you a clue as to what it is. 


The 8 at the end of the number you posted designates speed (8MHz)

Info:
www.happytrees.org/chips?page=chip&manufacturer=Zilog&part=Z0840008PSC
http://www.cpu-world.com/CPUs/Z80/Zilog-Z0840008PSC.html
http://www.cpu-world.com/info/Pinouts/Z80.html


Ignore all that, I missed the 6, it's a Z8 CPU.

[amyk]

The Z084 is a lot more common... what's the datecode on this one?

[Crazy Ape]

The Z084 is a lot more common... what's the datecode on this one?

Yeah, I missed the 6 in the part number, it's a Z8 CPU, not a Z80...  OOoops!

[deames]

Two other sets of numbers on chip.  73979-1 and 9237. Most definitely not a z80, way too small, only 28 pins.
Had a feeling it might be  a z8, but can't find any info on it anywhere.

[Crazy Ape]

Not much info on the net about it (but now it's all in one place  )

Here's some brief specifications:
http://www.datasheetarchive.com/shortform-datasheet/Z08600-08PEC.html

It seems it was also known as the "Z8 MP/3/7088 MODEL 7000 R255"
http://pdf.datasheetarchive.com/indexerfiles/Datasheets-XX1/DSAXX0078.pdf
http://cpufpu.ic.cz/zilog/z8.html

The 2K ROM makes it pretty much useless as far as reprogramming goes.

Pinout (Reconstructed from Kicad file)
https://github.com/GaroaHC/PenseBem/blob/master/kicad/lib/z0860008psc.lib

Pin       Function
--------------------
1          +5V
2          XTAL2
3          XTAL1
4          /RESET
5          /DS
6          Port3.5
7          GND
8          Port0.0
9          Port0.1
10        Port0.2
11        Port0.3
12        Port0.4
13        Port0.5
14        Port1.0
15        Port1.1
16        Port1.2
17        Port1.3
18        Port1.4
19        Port1.5
20        Port1.6
21        Port1.7
22        Port2.1
23        Port2.2
24        Port2.3
25        Port2.4
26        Port2.5
27        Port3.1
28        Port3.6

[deames]

Thanks Crazy Ape, now I can toss it with a clear conscience. Hate to throw away usable parts.

[amyk]

Unlike the mask-ROM 8051s which could still be used with external ROM by disabling the internal one.