Why is a pull-up resistor needed when connecting TTL logic to CMOS logic?

Related MCQs

• he problem of the VOH(min) of a TTL IC being too low to drive a CMOS circuit and meet the CMOS requirement of VIH(min) is usually easily overcome by:
• One advantage TTL has over CMOS is that TTL is
• The problem of different current requirements when CMOS logic circuits are driving TTL logic circuits can usually be overcome by the addition of:
• How does the 4000 series of CMOS logic compare in terms of speed and power dissipation to the standard family of TTL logic?
• Which logic family combines the advantages of CMOS and TTL?
• A major advantage of ECL logic over TTL and CMOS is
• Why is a pull-up resistor needed for an open collector gate?
• A pull-up resistor is a resistor used to keep a given point in a circuit HIGH when in the active state.
• Why is a decoupling capacitor needed for TTL ICs and where should it be connected
• The nominal value of the dc supply voltage for TTL and CMOS is