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Reply-To: "Geraldo Sazias"
From: "Geraldo Sazias"
Subject: Discrete NAND vs. MCU NAND?
Date: Tue, 12 Nov 2002 16:17:54 +0100
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NNTP-Posting-Date: 12 Nov 2002 15:18:51 GMT
My circuit needs a NAND port for some logic signals and I've currently
implemented it using a single IC which takes up considerable space on the
PCB and besides, I'm wasting 3 of the 4 NAND ports anyway.
So I was thinking wouldn't it be better to implement a NAND port using
discrete components? I was thinking about simply hooking a resistor up to
the +5V at the top (of my imaginary schematic), the output at the bottom
part of the resistor, and below that two FETs directly driven by the logic
On the other hand, I could implement a NAND using the ports of my MCU (which
is also part of the schematic) using software which would save me even more.
Has anyone ever tried one of these methods?
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