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155-0090-00: Difference between revisions
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The '''155-0090-00''' is a Tek-made custom four-decade counter IC. | The '''155-0090-00''' is a Tek-made custom four-decade counter IC. The die is the M059 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 | ||
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* [[7D15]] | * [[7D15]] | ||
* [[7B85]] (U686 before SN B06000), later models use [[155-0171-00]]/[[155-0185-00]] | * [[7B85]] (U686 before SN B06000), later models use [[155-0171-00]]/[[155-0185-00]] | ||
* [[7J20]] | |||
==Data== | |||
<gallery> | |||
Tek m059 p1.jpg | |||
Tek m059 p2.jpg | |||
</gallery> | |||
[[Category:Tektronix-made monolithic integrated circuits]] | [[Category:Tektronix-made monolithic integrated circuits]] | ||