Motorola 6820: Difference between revisions

Revision as of 04:24, 30 May 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

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@@ Line 4: / Line 4: @@
 |Part_nos=156-0427-00
 |Description="Peripheral Interface Adapter (PIA)"
-|Used_in=021-0206-00;7A16P;7B81P;7B90P;Keithley 175A;Keithley 485;
+|Used_in=021-0206-00;7A16P;7B81P;7B90P;Keithley 175A;Keithley 197;Keithley 485;
 }} is an I/O port controller for the [[Motorola 6800]] family of microprocessors.