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=7B81P;
|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}}


==Links==
==Links==
* [[wikipedia:Peripheral Interface Adapter|Peripheral Interface Adapter]] @ Wikipedia
* [[wikipedia:Peripheral Interface Adapter|Peripheral Interface Adapter]] @ Wikipedia
 
* [[Media:Component_news_259.pdf|Tek Component News No.259 May 1978 – Page 13 - 6820 replaced with 6821]]


{{MissingPics}}
{{MissingPics}}


[[Category:Microprocessors]]
[[Category:Microprocessor peripherals]]
[[Category:Introduced in 1974]]
[[Category:Introduced in 1974]]

Latest revision as of 04:22, 5 June 2024

The Motorola 6820  (P/N 156-0427-00) is a "Peripheral Interface Adapter (PIA)" monolithic integrated circuit is an I/O port controller for the Motorola 6800 family of microprocessors.

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

Some instruments using part Motorola 6820

Instrument Manufacturer Class Model Description Introduced
021-0206-00 Tektronix Interface 021-0206-00 GPIB Interface for P7001 (?)
7A16P Tektronix Plug-in 7A16P 150/200 MHz vertical amplifier 1978
7B81P Tektronix Plug-in 7B81P programmable timebase (?)
7B90P Tektronix Plug-in 7B90P 400 MHz programmable timebase 1978
Keithley 175A Keithley Multimeter 175A 4½-digit TRMS digital multimeter (?)
Keithley 197 Keithley Multimeter 197 5½-digit digital multimeter (?)
Keithley 485 Keithley Multimeter 485 Digital picoamperemeter (?)
Keithley 580 Keithley Multimeter 580 5½-digit microohmmeter 1985

Links

Pictures

  • please add