Integrated-Circuit Logic Families - Technical MCQs

Q1:

Which of the following logic families has the highest maximum clock frequency?

A S-TTL

B AS-TTL

C HS-TTL

D HCMOS

ANS:B - AS-TTL

AS-TTL (Advanced Schottky) has max that is 105Mhz.

S-TTL (Schottky High Speed TTL) has 100Mhz.

Found nothing as HS-TTL. There is H and S separate TTL.

HCMOS has 50Mhz.