What is TTL in logic family?
Transistor–transistor logic (TTL) is a logic family built from bipolar junction transistors. Its name signifies that transistors perform both the logic function (the first “transistor”) and the amplifying function (the second “transistor”), as opposed to resistor–transistor logic (RTL) or diode–transistor logic (DTL).
How does TTL logic work?
Transistor-transistor logic (TTL) is a digital logic design in which bipolar transistor s act on direct-current pulses. Many TTL logic gate s are typically fabricated onto a single integrated circuit (IC). A TTL device employs transistor s with multiple emitters in gates having more than one input.
Which TTL family is the fastest?
Emitter-coupled-logic (ECL) is a BJT logic family that is generally considered the fastest logic available.
What is the difference between TTL and CMOS logic families?
TTL circuits utilize BJTs while CMOS circuits utilize FETs. 2. CMOS allows a much higher density of logic functions in a single chip compared to TTL. TTL circuits consumes more power compared to CMOS circuits at rest.
What is TTL trigger?
A TTL trigger mode obviates the need for any LEVEL setting and thus results in a proper display in most cases. TTL triggering makes the oscilloscope partially immune to noise or ringing present in the trigger signal.
What is 5V TTL?
TTL is an acronym for Transistor-Transistor Logic. Below is an example for standard 5V TTL levels: VOH — Minimum OUTPUT Voltage level a TTL device will provide for a HIGH signal. VIH — Minimum INPUT Voltage level to be considered a HIGH. VOL — Maximum OUTPUT Voltage level a device will provide for a LOW signal.
What are the 3 basic logic gates?
All digital systems can be constructed by only three basic logic gates. These basic gates are called the AND gate, the OR gate, and the NOT gate. Some textbooks also include the NAND gate, the NOR gate and the EOR gate as the members of the family of basic logic gates.
What is a TTL value?
Time-to-live (TTL) is a value for the period of time that a packet, or data, should exist on a computer or network before being discarded. For example, TTL is a value in an Internet Protocol (IP) packet that tells a network router when the packet has been in the network too long and should be discarded.
Which logic family is fastest logic family?
Emitter-coupled logic (ECL) is a BJT-based logic family which is generally considered as the fastest logic available.
What does a Dmux do?
A demultiplexer (often abbreviated as a demuxer or dmux) is a software or hardware tool that creates two or more streams of data from a single-stream input.
Why is TTL faster than CMOS?
The advantage of the CMOS over the TTL chips is that the CMOS has a higher density of logic gates within the same material. TTL chips consume more power as compared to the power consumed by the CMOS chips even at rest. A very minute amount of static electricity could cause damage to the CMOS chips.
What is the difference between bipolar and TTL logic families?
These logic families have the advantages of high speed and lower power consumption than Bipolar families. These are classified as: TTL – Transistor-Transistor Logic: Standard logic family; used for the longest time. ECL – Emitter Coupled Logic: Suitable for systems requiring high-speed operations.
What are the types of logic families?
Unipolar Logic Families: It mainly uses Unipolar devices like MOSFETs in addition to passive elements like resistors and capacitors. These logic families have the advantages of high speed and lower power consumption than Bipolar families. These are classified as: PMOS or P-Channel MOS Logic Family
What is the unipolar logic family?
Unipolar logic family consists of Metal Oxide Semiconductor (MOS) logic families. They are: Logic families are mainly classified as Bipolar Logic Families and Unipolar Logic Families. Bipolar Logic Families: It mainly uses bipolar devices like diodes, transistors in addition to passive elements like resistors and capacitors.
What is the difference between TTL and ECL logic?
TTL – Transistor-Transistor Logic: Standard logic family; used for the longest time. ECL – Emitter Coupled Logic: Suitable for systems requiring high-speed operations.