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Motorola 6821: Difference between revisions
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|Manufacturer=Motorola | |Manufacturer=Motorola | ||
|Model=6821 | |Model=6821 | ||
|Part_nos=156-0427-03 | |Part_nos=156-0427-03,156-1205-00 | ||
|Description="Peripheral Interface Adapter (PIA)" | |Description="Peripheral Interface Adapter (PIA)" | ||
|Used_in=067-1137-99; | |Used_in=067-1137-99;7A16P;7A29P;7B90P; | ||
}} is an I/O port controller for the [[Motorola 6800]] family of microprocessors. | }} is an I/O port controller for the [[Motorola 6800]] family of microprocessors. | ||
It is an updated version of the [[Motorola 6820]] with slightly different specs. | It is an updated version of the [[Motorola 6820]] with slightly different specs. | ||
It was second-sourced by several other companies. | It was second-sourced by several other companies. The '''68B21''' (156-1205-00) is a 2 MHz version. | ||
==Used in== | ==Used in== | ||
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{{MissingPics}} | {{MissingPics}} | ||
[[Category: | [[Category:Microprocessor peripherals]] | ||
[[Category:Introduced in 1977]] | [[Category:Introduced in 1977]] | ||