TTL substitute for DTL

Chuck Guzis cclist at sydex.com
Thu Feb 10 23:50:35 CST 2022


I've got a piece of gear here with a bad MC858P used as a bus
driver--terminated in 220/330 ohms at the far end.

Given that old DTL is a hit-or-miss proposition, I'm proposing to
substitute a 7438 OC buffer.  Pinout's the same, as is Vcc.

Before I get out the soldering iron, any "don't do it" thoughts?

--Chuck


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