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Atari 520STM

Atari ST · 1985

The 520ST with the RF modulator fitted, so it works on a television rather than needing Atari's monitor. A small change that matters enormously for what the machine could be sold as at home. Otherwise the launch ST: 512K, external floppy, and the same MIDI ports.

As catalogued

Maker
Atari
CPU
Motorola 68000-8
Memory
512K, 1MiB
Styles
520STM, 260ST
Regions
PAL, NTSC
Chassis
wedge, external floppy drive
OS
TOS 1.02 / GEM

Chips

6
CPU
Motorola MC68000-8, Signetics SCC68000
Shifter
C025912, C300589 (STE)
GLUE
C025913, combined in the STE's GST MCU
MMU
C025912-002, combined in the STE's GST MCU
Sound
Yamaha YM2149F
TOS ROM
TOS 1.00, TOS 1.02, TOS 1.04, TOS 1.06, TOS 1.62, TOS 2.06

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