155-0090-00: Difference between revisions

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The '''155-0090-00''' is a Tek-made custom four-decade counter IC.  The die is the M059 designed by [[Mike Metcalf]] in 1974.
{{Monolithic IC
|Manufacturer=Tektronix
|Model=M059
|Part_nos=155-0099-00
|Description=four-decade counter
|Used_in=7D01;7D12;7D15;7B85;7J20
|Designers=Mike Metcalf
}} designed by [[Mike Metcalf]] in 1974.


It contains four 4-bit BCD counters, four 4-bit latches and four BCD-to-analog converters  
It contains four 4-bit BCD counters, four 4-bit latches and four BCD-to-analog converters