Josh: Create documentation page for newly hosted Apple II/III family primary source

2026-09-23T04:36:30Z

Create documentation page for newly hosted Apple II/III family primary source

New page

<pdf> File:Apple IIc Technical Reference Manual 1985.pdf </pdf>

The '''Apple IIc Technical Reference Manual''' (Apple Computer, Inc., 1985; published by Addison-Wesley) is Apple's own hardware reference for the [[Apple IIc]].

== What is in it ==
* '''External power supply, Table 11-2''' - line voltage 105 to 129 V AC, 60 Hz; maximum input power 25 W; output '''+15 V DC nominal at 1.2 A nominal'''; connected to the computer by a '''7-pin DIN connector'''.
* '''Internal converter, Table 11-4''' - input '''+9 to 20 V DC'''; maximum power 25 W; supply voltages '''+5 V ±5%, +12 V ±10%, −12 V ±10%'''; maximum currents +5 V 1.0 A, +12 V 0.6 A continuous / 0.9 A intermittent / 1.5 A surge for under 100 ms, −12 V 100 mA, (−5 V 50 mA); maximum case temperature 60 °C. '''−5 V is derived from −12 V on the main logic board''', not produced by the converter.
* '''Environmental, Table 11-1''' - operating temperature 10 to 40 °C, relative humidity 20% to 95%, line voltage 105 to 129 V AC. Apple's note that an overheated IIc can warp or melt a disk in the built-in drive.
* '''Video, Table 5-2''' - low-resolution 40 × 48 in 16 colours; high-resolution 280 × 192 black-and-white or 140 × 192 in six restricted colours; double high-resolution 560 × 192 black-and-white or 140 × 192 in 16 colours with no restrictions. Video is available at both the RCA phono jack and the 15-pin D-type connector.
* The ROM banking soft switch at $C028, used by a 32K IIc to page the second 16K in and out - the original IIc has 16K.
* Full register maps, the mouse and hand-control ports, the serial firmware, and Appendix G for the 50 Hz (international) models.

Download: [[:File:Apple IIc Technical Reference Manual 1985.pdf|Apple IIc Technical Reference Manual 1985.pdf]]

== See also ==
* [[Apple IIc]]
* [[Apple IIc Plus]]
* [[Apple UniDisk 3.5]]

[[Category:Apple Documentation]]
[[Category:Documentation]]
[[Category:Apple Vintage Computers]]

Apple IIc Technical Reference Manual - Revision history

Josh: Create documentation page for newly hosted Apple II/III family primary source