Logic circuit implementation

Cheok Loon Lee

Intellectual 610 points

Other Parts Discussed in Thread: SN74LVC1G99

Hi,

Does anyone know what sort of logic ICs can do the job as described in attached diagram?

over 13 years ago

0 Avi Chami1 over 13 years ago

Mastermind 7395 points

I don't know of a single one from TI to do that, if you are willing to use two or maybe three devices, I think I can offer a solution.

0 Cheok Loon Lee over 13 years ago in reply to Avi Chami1

Intellectual 610 points

Hi Albert,

Thanks for the advice. Would be glad if you can give me some recommendations. I think at this moment, I need 4 chips. It would be great if I can reduce the count.

Lee

0 Avi Chami1 over 13 years ago in reply to Cheok Loon Lee

Mastermind 7395 points

The most "complicated" parts of the logic are the XOR and the XNOR followed by an AND and the enable logic.

You could do the XOR and the AND using a SN74LVC1G99 where the OE depends on the NTN_EN pin. The XNOR and its AND are done with another SN74LVC1G99 gate. The rest is simple.

Hope this helps

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Logic circuit implementation