P6406: Difference between revisions
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The '''Tektronix P6406''' is a 16-channel word recognizer probe for the [[308]] logic analyzer. | The '''Tektronix P6406''' is a 16-channel word recognizer probe for the [[308]] logic analyzer. | ||
Input lead sets (same as for the [[P6451]]): | |||
* [[012-0747-00]] - standard 10-wire 25 cm with pluggable probe tips | |||
* 012-0655-01 - ten individual 40 cm leads | |||
* 012-0655-02 - ten individual 8 cm leads | |||
* 012-0670-00 - ten individual 16 cm leads | |||
* 012-0800-00 - 10-wire 10 cm | |||
The probe-side input connector is a standard .65 mm pin header on a 0.2" (5.08 mm) pitch so it is also possible to use standard jumper wires with pins, sockets or clips on the other end for connecting inputs. | The probe-side input connector is a standard .65 mm square pin header on a 0.2" (5.08 mm) pitch so it is also possible to use standard jumper wires with pins, sockets or clips on the other end for connecting inputs. | ||
==Internals== | ==Internals== | ||
Revision as of 10:15, 5 June 2017
The Tektronix P6406 is a 16-channel word recognizer probe for the 308 logic analyzer.
Input lead sets (same as for the P6451):
- 012-0747-00 - standard 10-wire 25 cm with pluggable probe tips
- 012-0655-01 - ten individual 40 cm leads
- 012-0655-02 - ten individual 8 cm leads
- 012-0670-00 - ten individual 16 cm leads
- 012-0800-00 - 10-wire 10 cm
The probe-side input connector is a standard .65 mm square pin header on a 0.2" (5.08 mm) pitch so it is also possible to use standard jumper wires with pins, sockets or clips on the other end for connecting inputs.
Internals
The 16 inputs connect (via 330 Ω resistors) to inputs of four 74LS266 quad exclusive-NOR gates that receive bit-inversion masks from two of three 74LS164 serial-in, parallel-out shift registers. The third shift register provides don't care masks (one per group of four inputs). After the logic circuits, a 74S140 cable driver sends the trigger signal to the 308.
Links
Pictures
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P6406 probe
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P6406 case close-up
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P6406 PCB front
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P6406 PCB back
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Using P6406/P6451 probes with jumper wires
