Is there a chip that does this?

I have a question for an integrated circuit boffin sort of person. I know that there are all kinds logic gate chips that can take two inputs and generate a single output.

Is there, on the other hand, a chip out there that will take one input and generate two outputs. I basically need a chip that for an input A and outputs B & C has the following truth table.

If A = 0 Then
B = 0
C = 1
Else
B = 1
C = 0
Endif

I know that I can build that up with a few logic gates, but I was wondering if there is a single chip that will do that of perhaps a single chip that contains several of these functions.

What I am trying to do is cut down on the number of i/o pins on my PIC that I need to control directional control on the SN 754410 when I am running a bipolar stepper on it.

Thanks

Okay, nophead says that I need an inverter chip. That seems to solve the problem.

Best bet is a hex inverter (6 inverters on a chip). Connect A to the input of one inverter. Connect C to the output of that. Chain that to the input of a second inverter and connect B to the output of that. You'll be able to get 3 of these from a single IC.

Part numbers for hex inverters, depending on your needs:
74LS04
74HC04
MC14069

Yup, Nop suggested the 74HC04. Thanks, Steve.

Ah, he beat me to it. I type too slow.

You missed it by about 5 minutes, no more.

No need to chain the inverters. The input load from an HC chip is so small that all the drive capability of the PIC will still be available for your un-inverted signal.

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[www.hydraraptor.blogspot.com]

You might even get away with something this silly, use any NPN-small signal transistor.


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