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A Pair of DIP CIAs
A surface mounted square CIA
The Amiga contains two CIA's, known as CIA-A and CIA-B although they are both the same chip. The CIA's are responsible for, or take part in various I/O functions such as the serial, parallel, joystick & mouse ports.

Chip Number Part Number Used In
8520A-1 318029-03 A2000
8520A-1 A1000
8520PL 391078-01 A600
8520A-1 391078-02
8520R2 A1000 NTSC
Page contributors: Mirko Alexander Stuffe, RiWa & Friends, Takahasi Kasiko
Updated: 2/17/2006 . Added: 12/23/2004