8-8A3 C
When comparing TTL and CMOS logic families, which of the following is true:
A. CMOS logic requires a supply voltage of 5 volts +/- 20%, whereas TTL logic requires 5 volts +/- 5%.
B. Unused inputs should be tied high or low as necessary especially in the CMOS family.
C. At higher operating frequencies, CMOS circuits consume almost as much power as TTL circuits.
D. When a CMOS input is held low, it sources current into whatever it drives.
