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[[File:p6406-1.jpg |thumb|350px|right|P6406 Word Recognizer Probe for [[380|Sony/Tektronix 308 Logic Analyzer]]]] | |||
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. | ||
It uses the [[012-0747-00]] cable harness to connect to the data source, like the [[P6451]]. | It uses the [[012-0747-00]] cable harness to connect to the data source, like the [[P6451]]. | ||
The 16 inputs connect to four 74LS266 exclusive-NOR gates that receive bit-inversion masks from two of | 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. | ||
three 74LS164 serial-in, parallel-out shift registers. The third 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. | ==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== | ==Links== | ||
* [http://www.barrytech.com/tektronix/probes/tekp6406.html | * [http://www.barrytech.com/tektronix/probes/tekp6406.html P6406 @ barrytech.com] | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
p6406-1.jpg | p6406-1.jpg | P6406 probe | ||
p6406-2.jpg | p6406-2.jpg | P6406 case close-up | ||
p6406-3.jpg | p6406-3.jpg | P6406 PCB front | ||
p6406-4.jpg | p6406-4.jpg | P6406 PCB back | ||
P64xx-jumper.jpg | Using P6406/[[P6451]] probes with jumper wires | |||
</gallery> | </gallery> | ||
[[Category:Logic analyzer probes]] | [[Category:Logic analyzer probes]] | ||