155-0119-00: Difference between revisions

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[[File:155-0119.jpg | thumb|350px|right|155-0119-00 BCD Counter in [[DC508A]]]]
[[File:155-0119.jpg | thumb|350px|right|155-0119-00 BCD Counter in [[DC508A]]]]
The '''Tektronix 155-0119-00''' (M123A) is a Tek-made 5-digit BCD counter and multiplexer chip in a 40-pin CERDIP, desigend by [[Dave Allstot]].
{{Monolithic IC
|Manufacturer=Tektronix
|Model=M123A
|Part_nos=155-0119-00
|Description=5-digit BCD counter and multiplexer  
|Used_in=DC508A;
|Designers=Dave Allstot
}} in a 40-pin CERDIP, desigend by [[Dave Allstot]].


It provides a multiplexed BCD output with decoded digit lines from its five internal counter stages plus four latched 4-bit BCD inputs (for the most significant digits i.e. higher frequency divider stages).  Maximum clock frequency is 5 MHz.
It provides a multiplexed BCD output with decoded digit lines from its five internal counter stages plus four latched 4-bit BCD inputs (for the most significant digits i.e. higher frequency divider stages).  Maximum clock frequency is 5 MHz.


==Used in==
==Used in==
* [[DC508A]] (A1U1330)
* [[DC508A]] (A1U1330)


==Datasheet==
==Datasheet==
* [[Media:Tek 155-0119-00.pdf|Tektronix 155-0119-00 Datasheet (PDF)]]
* [[Media:Tek 155-0119-00.pdf|Tektronix 155-0119-00 Datasheet]]


<gallery>
<gallery>


</gallery>
</gallery>
{{Part usage}}


[[Category:Tektronix-made monolithic integrated circuits]]
[[Category:Tektronix-made monolithic integrated circuits]]

Latest revision as of 07:04, 27 July 2023

155-0119-00 BCD Counter in DC508A

The Tektronix M123A  (P/N 155-0119-00) is a 5-digit BCD counter and multiplexer monolithic integrated circuit in a 40-pin CERDIP, desigend by Dave Allstot.

It provides a multiplexed BCD output with decoded digit lines from its five internal counter stages plus four latched 4-bit BCD inputs (for the most significant digits i.e. higher frequency divider stages). Maximum clock frequency is 5 MHz.

Used in

Datasheet

Some instruments using part 155-0119-00

Instrument Manufacturer Class Model Description Introduced
DC508A Tektronix Plug-in DC508A 1.3 GHz counter 1980