Correct Answer: It is a tristate inverter. When the ENABLE input is HIGH, the output is effectively an open circuit?it is neither LOW nor HIGH.
5. What is unique about TTL devices such as the 74S00?
Options
A. The gate transistors are silicon (S), and the gates therefore have lower values of leakage current.
B. The S denotes the fact that a single gate is present in the IC rather than the usual package of 2?6 gates.
C. The S denotes a slow version of the device, which is a consequence of its higher power rating.
D. The devices use Schottky transistors and diodes to prevent them from going into saturation; this results in faster turn on and turn off times, which translates into higher frequency operation.
Correct Answer: The devices use Schottky transistors and diodes to prevent them from going into saturation; this results in faster turn on and turn off times, which translates into higher frequency operation.
6. List three basic blocks in the digital clock project.