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What is the part number for a 2 gate 74xx125 - used with Dallas 8051s

dxpwny

Jul 9, 2011
30
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Jul 9, 2011
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30
I am building a small foot print board using the Dallas DS89C450. I want to use a 74HC125 (or 74AC125) in the serial programming circuit, but don't want to use a 14 pin DIP. I'd like to use surface mount version - and I believe one exists with just one or two gates to it.

Does anyone know what I'm referring to and know a part number ??
 

Solidus

Jun 19, 2011
349
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Jun 19, 2011
Messages
349
If you're looking for the dual-gate bus buffer, try the 74LVC2G125.

It's available in a number of different uber-small packages. Here's the datasheet. Let me know if that's what you're looking for.

EDIT: It is available in both a modified (2mm wide) TSSOP-8 and other micro packages. You'll want a good deal of precision mounting these - place then under-heat them before mounting the rest of the parts.
 
Last edited:

dxpwny

Jul 9, 2011
30
Joined
Jul 9, 2011
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I think the 74LVC2G125 would work fine ... except I'd greatly prefer something in a little bigger package. I need 2 74AC125 / 74HC125 type buffers (non inverting, active low enable) that'll work in an all 5 V system.
 
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