Atari 520ST

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APPENDIX E
ATARI
520ST
SPECIFICATIONS
Processor:
MC68000,
32-bit internal, 16-bit
external ar-
chitecture.
8
MHz clock
frequency
Memory:
524,288 bytes
of RAM, 16,384
bytes of ROM
Floppy
Disk
Capacity: 360
Kilobytes
per formatted
disk surface, 3.5
inch
media
Graphics
Resolution
(selectable):
640
x 400 monochrome
320 x 200
x 1
6
colors
640
x 200 x 4 colors
Color:
Palette
—
51 2
Colors
Interfaces:
Midi In
and
Midi Out
Ports
Monitor Port (RGB
Analog; high-resolution
monochrome and audio)
Parallel
Interface Printer Port (IBM®-style
plug,
Centronics®
signal
specifications)
RS232C Serial
Modem
Port
Floppy Disk
Port (includes
controller)
Hard Disk Port
(10
megabits per second DMA
transfer rate)
ROM Cartridge Port
(1
28 Kilobytes capacity)
Mouse/Joystick
and Joystick Ports
Sound
Generator: 3
voices from 30 Hz to
above
audible range
Keyboard:
94-key intelligent keyboard using a
6301
microprocessor
Power
Supply: +
5V ±
5%
@
2A
+
12V
±10%
@
30MA
-
12V
±10%
@
30MA
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