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Motorola 6820: Difference between revisions
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|Part_nos=156-0427-00 | |Part_nos=156-0427-00 | ||
|Description="Peripheral Interface Adapter (PIA)" | |Description="Peripheral Interface Adapter (PIA)" | ||
|Used_in=021-0206-00;7A16P;7B81P;7B90P; | |Used_in=021-0206-00;7A16P;7B81P;7B90P;Keithley 175A;Keithley 197;Keithley 485;Keithley 580; | ||
}} 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. | ||
The [[Motorola 6821]] is an updated version with slightly different specs. | The [[Motorola 6821]] is an updated version with slightly different electrical specs. | ||
Other manufacturer's versions with various electrical differences are | |||
* WDC – W65C21S | |||
* CMD/GTE – G65SC21 | |||
* Hitachi – HD6821, HD6321 (CMOS) | |||
* MOS Technology – 6521 | |||
* Rockwell – R6520, R6521, R65C21 | |||
* ST Micro – EF6821 | |||
==Used in== | ==Used in== | ||
{{Part usage}} | {{Part usage}} | ||
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{{MissingPics}} | {{MissingPics}} | ||
[[Category: | [[Category:Microprocessor peripherals]] | ||
[[Category:Introduced in 1974]] | [[Category:Introduced in 1974]] | ||