The number of TTL inputs that can be sinked by the port 0 when a logic 0 is sent to a port line as an output port is
A. 2
B. 4
C. 6
D. 8
Answer:A
The number of TTL inputs that can be sinked by the port 0 when a logic 0 is sent to a port line as an output port is
A. 2 B. 4 C. 6 D. 8
Explanation: When a logic 0 is sent to a port line as an output port, it can sink 8 LS TTL inputs. Port 0 is used as data bus during external interfacing whenever required.