View source for MOS Technology 6522

{{Monolithic IC
|Manufacturer=MOS Technology
|Model=6522
|Part_nos=156-1539-00
|Description="Versatile Interface Adapter (VIA)"
|Used_in=FG5010;MI5010;SI5010;Keithley 181;Keithley 181A;Keithley 192;Keithley 193A;Keithley 195;Keithley 195A;Keithley 196;Keithley 199;Keithley 220;Keithley 224;Keithley 230;
}} designed and manufactured by [[MOS Technology]] as an I/O port controller for the [[MOS Technology 6502|6502 family of microprocessors]]. 

The 6522 is similar to the [[Motorola 6820]] with two timers and a shift register added.

It was second-sourced by a number of other companies.