Probably none, since Fairchild inherited that product line from National
Semiconductor.
Regards,
Javier, EA1CRB
El 13/07/2010 21:30, Stanley Reynolds escribió:
Learning about the differences between families now know why a 74F is not a
substitute for 74AC.
But remembering something I read in Brooks Shera, W5OJM GPSDO notes "Take care
about which 4046 chips you use for U1 and U3. The Phillips 74HCT4046 chips
(formerly sold by Radio Shack) are fine. So are CD74HC4046 chips made by Harris
or T.I. Do not use chips made by Fairchild and do not use CD4046 chips; both
have a different design and will not work in this circuit."
Does anyone know about any differences in Fairchild and National Semiconductor
74AC175PC ?
Stanley
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--
------------------------------------------------------------------------
Javier Herrero EMAIL: jherr...@hvsistemas.com
HV Sistemas S.L. PHONE: +34 949 336 806
Los Charcones, 17 FAX: +34 949 336 792
19170 El Casar - Guadalajara - Spain WEB: http://www.hvsistemas.com
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