155-0119-00: Difference between revisions
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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]]. | 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]]. | ||
It provides a multiplexed BCD output with decoded digit lines from four 4-bit BCD inputs (for the most significant digits i.e. higher frequency divider stages) | 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== | ||
Revision as of 10:53, 25 November 2019
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.
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
- DC508A (A1U1330)