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Commodore 264 - Technical Details

Data Sheet

  CPU         : 7501 / 8501 @ 1.76 MHz [1]
  RAM         : 64kB DRAM (Plus/4)
              : 16kB DRAM (C16 / C116)
  ROM         : 48kB ROM total (Plus/4)
              : 32kB ROM total (C16 / C116)
  Graphics    : TED
  Sound       : TED
  Int. drives : -
  Interfaces  : user port (Plus/4 only)
                expansion port,
                serial IEC,
		TV,
		audio/video,
		2 x control port,
		cassette port
  Keyboard    : 67 keys (Plus/4)
                66 keys (C16)
                64 keys C116)
  Power supply: external transformer (9VAC + 5V DC) (Plus/4)
                external transformer (9V DC) (C16), probably C116, too
  Extras      : -

PCB History - Components - Documentation

The different PCB versions

1. Plus/4

[Picture of Plus/4 board, 55k GIF]

Schematics
Known revisions: ?

My Plus/4 board has the PCB ASSY #310163. And the keyboard cable is directly soldered onto the board :-(



2. C116

[Picture of C116 board, 58k GIF]

[ Help! Schematics wanted! ]

Known revisions: 5

This board bears the PCB NO #251244 and the ASSY NO 250413 REV 5 (at least that's what I deciphered).



3. C16

[Picture of C16 board, 108k GIF]

[ Help! Schematics wanted! ]

Known revisions: REV.A

This board bears the PCB NO 251789-01, ASSY NO 250443


Component Locations

(Click here for ASCII version)

Plus/4 C116 C16
6529 U5 & U27 ? U13
555 U8 ? U10
7406 U7 ? U9
74LS04 U6 ? ?
74LS08 U4 ? ?
ACIA U3 ? -
CPU U2 ? U2
DRAM U11-U18 ? U5-U6(?)
ROM 251641-02 U19 ? U16
ROM 317053-01 U25 ? ?
ROM 317054-01 U26 ? ?
ROM 318004-05 U24 ? U4
ROM 318006-01 U13 ? U3
TED U1 ? U1

Note: Locations have been verified with MY board revisions. If your board differs in component location, please mail me!

[ Help! Can you fill out the rest? Please VERIFY locations on your board first! ]


Documentation


[1] 64'er 2/85, p.18, Auf einen Blick


Updated: September 9th, 1998
Created: February 21st, 1998
Status : NOT VERIFIED!

Site copyright © 1997 by Marc-Jano Knopp
This document is part of MJK's Commodore 64 & LCD Page
Brought back to life by Peter Schepers, Dec 10, 2005 because I really liked this site!