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TTL stands for Transistor-Transistor-Logic. N-MOS is a type of a metal oxide semiconductor technology. TTL is faster, but generally uses more power. MOS based devices are slower, they and they use less power. Speed is an issue when dealing with high speed data processing.
Wiki User
∙ 17y ago
Wiki User
∙ 11y agoThe major advantage of CMOS over previous digital logic families (NMOS, TTL, RTL etc.) is that CMOS has almost no static current.
Since CMOS only draws power during a transition,
low-power devices -- such as wristwatches -- typically use CMOS at low transition rates (lower losses).
Even devices that run at very high speeds often have lower power consumption with CMOS than other digital logic families, because typically only a few gates make a transition at a time -- the vast majority of gates that don't transition save more than enough energy to make up for the few gates that transition and briefly consume more energy than TTL gates.
Wiki User
∙ 8y agoCMOS uses no power when it is doing nothing, while TTL always uses the same amount of power.
However for a very long time CMOS was much slower than TTL (they are now of similar speed).
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Which has a shorter propagation delay TTL or CMOS?
TTL
What is the most used ic among ttl and cmos?
ic 8284
Can a ttl chip drive a cmos chip without modification?
A TTL chip can drive a CMOS chip without modification if the CMOS chip is designed to do so. Many large scale CMOS chips, such as microprocessors, have LS (or equivalent) TTL IO pins, so you can drive them directly. In the absence of that, you can use a pull up resistor, but you need to look carefully at fan-in, fan-out, rise time, fall time, and power requirements, in order to assure proper operation. It is best to use chips that are designed for the application, such as TTL to CMOS buffers.
What is a cmos gate?
A CMOS gate is a logical switch used in electronics. CMOS stands for Complimentary Metal Oxide Silicon. These types of semiconductors have a very high input impedance, are very sensitive use low current and work over a larger range of voltage. The alternative is TTL(Transistor to Transistor Logic) which work at 5volts only and draw higher currents. A gate, is a switch that changes state (on/off) depending on the logic voltage levels applied to it's inputs.
What is the delay of 4 bit ripple carry adder?
That depends on the technology (e.g. TTL, CMOS, ECL) used in the adder. Look on the data sheet tables for the exact device you are using. There will be several different delays listed, depending on which inputs and outputs are involved. Also minimum and/or maximum delays may be given instead of typical.
Interfacing of ttl with cmos and cmos with ttl?
whis is Endurance mors or ttl
The main advantage of ECL over TTL?
The main advantage of ECL over TTL is speed.
Which has a shorter propagation delay TTL or CMOS?
TTL
Which logic family has the least propagation delay?
Here are the propagation delays for these gatesa) ECL = 2nsb) TTL = 1.5-33ns depending on the type of TTL. Conventional TTL is 9ns, Advanced Schottky TTL is 1.5nsc) RTL = 25nsd) CMOS = 5-20ns depending on if it is conventional CMOS, TTL pin compatible CMOS, high speed TPC CMOS or TTL compatible CMOSSo the fastest would be the Advanced Schottky TTL (74ASxx) at 1.5ns but the choice simply said TTL which I would interpret as Conventional TTL (74xx/54xx) which would have a propagation delay at 9ns.So the winner is ... (a) ECL which has a propagation delay at 2ns.
Can a TTL chip drive a CMOS chip?
yes
Compare ttl bi-cmos cmos?
small battery located on the motherboard or computer case.
What is the most used ic among ttl and cmos?
ic 8284
Can a ttl chip drive a cmos chip without modification?
A TTL chip can drive a CMOS chip without modification if the CMOS chip is designed to do so. Many large scale CMOS chips, such as microprocessors, have LS (or equivalent) TTL IO pins, so you can drive them directly. In the absence of that, you can use a pull up resistor, but you need to look carefully at fan-in, fan-out, rise time, fall time, and power requirements, in order to assure proper operation. It is best to use chips that are designed for the application, such as TTL to CMOS buffers.
Full form of vcc and vdd in TTL and CMOS?
vcc-voltage collector to collector vdd- voltage deran to deran ttl- transister transister logic cmos - complementary metal oxide same conductor
What is the difference in the switching speed of TTL and CMOS?
we know the answer.. but you are all not that much capable to understand that answer
Why is a TTL logic gate faster than a CMOS logic gate?
The switching time (on and off) of the TTL logic gate is very fast in comparison with CMOS logic gate. However, they could not tolerate higher range of power supply.
What is the differences among TTL and CMOS logic families?
{| ! CMOS ! TTL | CMOS has good packing density. TTL takes up more space CMOS has better noise immmunity. TTL has a smaller noise immunity range CMOS has a large fan out. TTL can power less inputs CMOS consume less power. TTL use more power CMOS are highly static sensitive. TTL IC's tend to be less susceptible to static electricity CMOS uses FETS (Field-Effect Transistors) TTL uses BJTs (Bipolar junction Transistors CMOS can run with a range of supply voltages. TTL IC's run with a 5V supply. CMOS uses Vdd and Vss for it's power connections TTL uses BJTs (Bipolar junction Transistors CMOS takes a lot less power and is therefore suitable for battery applications, but generally speaking can't run as fast. TTL devices can drive more power into a load. CMOS chips can be damaged by static electricity: even a static jolt that you or I can't feel might destroy a CMOS chip! |}
