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SN74HC541: SN74HC541

Part Number: SN74HC541
Other Parts Discussed in Thread: SN54LS174,

Using an NI Digital DAQ to drive D-type flip flop SN74HC541PW with TTL signals.

I am getting a good signal out of the SN74HC541PW, but when I apply these TTL signals to the 54LS174(Sold as PN JM38510/30106BEA ), I get no outputs.

The SN54LS174 chip is part of an existing design that I must work with as-is. the inputs D1-D6 each have a 0.1 uF capacitor attached, and this capacitor is attached to a 50 ohm resistor to GND.

I cannat figure out how to include a pdf or JPG with this message. ~Hans