Consider the basic TTL logic gate in Figure with a fanout of 5.
Assume transistor parameters of βF = 50 and βR= 0.5 (for each input emitter).
Calculate the base and collector currents in each transistor for:
(a) vX = vY = vZ = 0.1 V, and
(b) vX = vY = vZ = 5 V.