Atari XL Series

Deutsche Version: Seite 3 und 4!
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
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512 KB SRAM Memory Expansion
“Standard” for all Atari XL, XE and XEGS except the Atari 600XL
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

 !  "#$%&'#()**+,
 -.!//
Attention:
0/.12.!1
"!1./.
.
Hint: This expansion works technically in all Atari XL/XE computers and the Atari
XEGS, but will not fit in the Atari 600XL! For all other machines you may need one or
two machine-head precision sockets to lift up the ANTIC´s socket for more distance.
If you ever want to remove the expansion, DON´T lift the greater part of the PCB to pull
it out of the ANTIC socket! Use a flat screwdriver or similar and leverage the front part
where the ANTIC is placed on the left and right gently until you can easily pull out the
whole expansion.
3.".!../2
4+,01.
5/67☺
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/
% 890"!:"8&%;<=5
:"8%==>5?(+"*:"8&%;<>5:"8%&&<;590("0
,//all90"@
& 390"
."#
- ?**A0"/&B!
:"8;%;%=54?C4+,%&BB4?1:"8;B;B<5
:"%B%;=;54+D(4+D(**A

 )C90"1**A1
$ .90","#%
.9//,.
/90"/!
; #;%;**A!1
.**A;%;!@

Atari XL Series Specifications

General

Type	Home Computer
Processor	MOS Technology 6502C
Graphics	ANTIC and GTIA
Operating System	Atari BASIC (built-in), Atari OS
Storage	Cassette
Ports	Joystick, SIO (Serial I/O), Monitor
Display	Monitor
Manufacturer	Atari
CPU Speed	1.79 MHz

Summary

512 KB SRAM Memory Expansion Installation

Scope of Delivery and Key Warnings

Lists included items and provides critical warnings, compatibility hints, and removal advice.

Step-by-Step Installation Procedure

Detailed, numbered steps for installing the SRAM expansion, including IC handling and socketing.

PCB Wiring and Connection Details

V4.4 PCB Wiring Specifications

Defines the purpose of each wire color (Red, Brown, Black) for connecting the expansion.

Connecting the Black Wire by Model

Guides specific connection points for the black wire based on Atari computer models.

Final Checks and Startup Procedure

Instructions for verifying the installation, powering on, and initial troubleshooting.

Technical Information and Compatibility

Software Compatibility and Limits

Discusses how programs detect the expansion and potential limitations in memory reporting.

GAL Chip Considerations

Information on GAL chips used, including potential heat generation and company origins.