The problem of the V OH(min) of a TTL IC being too low to drive a CMOS circuit and meet the CMOS requirement of V IH(min) is usually easily overcome by:

adding a fixed voltage-divider bias resistive network at the output of the TTL device

avoiding this condition and only using TTL to drive TTL

adding an external pull-down resistor to ground

adding an external pull-up resistor to V CC

The problem of the V OH(min) of a TTL IC being too low to drive a CMOS

1.	The problem of the V OH(min) of a TTL IC being too low to drive a CMOS circuit and meet the CMOS requirement of V IH(min) is usually easily overcome by:
A.	adding a fixed voltage-divider bias resistive network at the output of the TTL device
B.	avoiding this condition and only using TTL to drive TTL
C.	adding an external pull-down resistor to ground
D.	adding an external pull-up resistor to V CC
Answer» E.