[time-nuts] 74AC logic differences between manufactures

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

Re: [time-nuts] 74AC logic differences between manufactures

] 74AC logic differences between manufactures 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

Re: [time-nuts] 74AC logic differences between manufactures

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