155-0090-00

The Tektronix M059  (P/N 155-0090-00, 155-0090-01, 155-0090-02) is a four-decade counter, latch and D/A converter monolithic integrated circuit designed by Mike Metcalf in 1974.

It contains four 4-bit BCD counters, four 4-bit latches and four BCD-to-analog converters producing a 10-level output current to interface directly with the 7000 series readout system.

Used in

• 7D01 (U1338 before SN B052815, later models use 155-0171-00)
• 7D12 (U500)
• 7D15
• 7B85 (U686 before SN B06000), later models use 155-0171-00/155-0185-00
• 7J20

Some instruments using part 155-0090-00

Instrument	Manufacturer	Class	Model	Description	Introduced
7B85	Tektronix	Plug-in	7B85	400 MHz delaying timebase	1976
7D01	Tektronix	Plug-in	7D01	16-ch Logic Analyzer	1976
7D12	Tektronix	Plug-in	7D12	digital meter plugin	1974
7D15	Tektronix	Plug-in	7D15	225 MHz frequency counter	1972
7J20	Tektronix	Plug-in	7J20	Optical Spectrometer	1975

Data

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Documents

• Tek 155-0090-00 specification
• Tek M059 rejects memo
• Tek M059 4-decade counter and memory
• Tek M059 155-0090-00 description
• Tek 155-0090-00 spec revision
• Tek M59D schematic and pads
• Tek m59 pads
• Tek M59 circuitry proposal
• Tek m59d dac
• Tek 7D12 counter memory with m059