Test: Transistor Transistor Logic (TTL) - Electrical Engineering (EE) MCQ

TTL is called transistor–transistor logic because both the logic gating function and the amplifying function are performed by bipolar junction transistors (BJTs).

The full form of TCTL is transistor-coupled transistor logic.

TTL inputs are the emitters of a multiple-emitter transistor.

Standard TTL circuits operate with a 5-volt power supply.

A TTL gate may operate inadvertently as an analog amplifier if the input is connected to a slowly changing input signal that traverses the unspecified region from 0.7V to 3.3V.

Transistor–transistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors. However, resistors have a small role to play and both logic gating and amplifying functions are performed by the transistors.

TTL was invented in 1961 by James L Buie.

The KENBAK 1, ancestor to the first personal computers.

Like DTL, TTL is a current-sinking logic since a current must be drawn from inputs to bring them to a logic 0 level. Current Sink means it accepts current coming out from a source.

TTL devices consume substantially more power than equivalent CMOS devices at rest. Thus, CMOS devices are faster than TTL devices.