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Solution: Characteristics of CMOS logic: 1. Dissipates low power: The power dissipation is dependent on the power supply voltage, frequency, output load, and input rise time. At 1 MHz and 50 pF load, the power dissipation is typically 10 nW per gate. 2. Short propagation delays: Depending on the power supply, the propagation delays are usually around 25 nS to 50 nS. 3. Rise and fall times are controlled: The rise and falls are usually ramps instead of step functions, and they are 20 - 40% longer than the propagation delays. 4. Noise immunity approaches 50% or 45% of the full logic swing. 5. Logic levels in a CMOS system will be essentially equal to the power supplies since the input impedance is so high.
Characteristics of TTL logic: 1. Power dissipation is usually 10 mW per gate. 2. Propagation delays are 10 nS when driving a 15 pF/400 ohm load. 3. Logic levels vary from 0 to 5 volts
Solution: Characteristics of CMOS logic: 1. Dissipates low power: The power dissipation is dependent on the power supply voltage, frequency, output load, and input rise time. At 1 MHz and 50 pF load, the power dissipation is typically 10 nW per gate. 2. Short propagation delays: Depending on the power supply, the propagation delays are usually around 25 nS to 50 nS. 3. Rise and fall times are controlled: The rise and falls are usually ramps instead of step functions, and they are 20 - 40% longer than the propagation delays. 4. Noise immunity approaches 50% or 45% of the full logic swing. 5. Logic levels in a CMOS system will be essentially equal to the power supplies since the input impedance is so high.
Characteristics of TTL logic: 1. Power dissipation is usually 10 mW per gate. 2. Propagation delays are 10 nS when driving a 15 pF/400 ohm load. 3. Logic levels vary from 0 to 5 volts
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What is the most used ic among ttl and cmos?
ic 8284
What does prefix 74 and 54 on a ttl of cmos ic indicate?
The 74 indicates a general use IC, the 54 indicates a military specification device with a greater operating temperature range. These two prefixes were originally assigned in the 1960s by Texas Instruments for their TTL logic family, but have since become de facto industry standards. They were also adopted for CMOS in the 1980s when it was decided that having common package pinouts would make it easier for both logic designers and circuit board layout software.
Difrance between ic and ttl?
ic refers to integrated circuits and ttl refers to transistor transistor logic. ttl is a family which provides the basic or former structure of logic gates for example different logic gates such as NAND,NOR etc can be made out with the help of transistors connected in a specific manner. integerated circuits are the combination of logic gates presented on a base with equal number of input pins . for example IC-7408 contains 14 pins
What is digital ic tester?
This Easy to build PIC based IC tester is very easy to make and highly reliable.This IC tester can successfully check the most of the IC's we are using in our normal project constructions such as TTL,74,74F,CMOS 4000 series.This could be very useful for the professionals as well as hobbyist.
What is 7432 ic?
The 7432 is a quad two input OR gate with TTL levels.
What is the most used ic among ttl and cmos?
ic 8284
What is the Ic number of 8 input x-or gate?
TTL 74 86 series or CMOS 4030
Which ttl ic is equivalent to lm 4017 ic decade counter?
The 4017 is a 5-stage divide-by-10 "Johnson counter" with 10 decoded outputs and a carry out bit. The 4000 series are CMOS devices. In TTL, the 74142 is also designed as a decade counter, which makes it functionally equivalent to the primary mission of the 4017. But it can't be called "equivalent" in any other respect, because of the usual wide array of differences in power requirements and input and output impedances between CMOS and TTL technology.
Why ttl voltage level converting to rs232 level?
Whwn an IC is connected to a PC, then the voltage levels of these two should be synchronized. For this purpose, the TTL voltage level is converted to RS 232 level. RS 232 is the interface between a PC and an IC.
What does prefix 74 and 54 on a ttl of cmos ic indicate?
The 74 indicates a general use IC, the 54 indicates a military specification device with a greater operating temperature range. These two prefixes were originally assigned in the 1960s by Texas Instruments for their TTL logic family, but have since become de facto industry standards. They were also adopted for CMOS in the 1980s when it was decided that having common package pinouts would make it easier for both logic designers and circuit board layout software.
Why use ic 7404?
you need some TTL inverter gates.
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! |}
Difrance between ic and ttl?
ic refers to integrated circuits and ttl refers to transistor transistor logic. ttl is a family which provides the basic or former structure of logic gates for example different logic gates such as NAND,NOR etc can be made out with the help of transistors connected in a specific manner. integerated circuits are the combination of logic gates presented on a base with equal number of input pins . for example IC-7408 contains 14 pins
What is digital ic tester?
This Easy to build PIC based IC tester is very easy to make and highly reliable.This IC tester can successfully check the most of the IC's we are using in our normal project constructions such as TTL,74,74F,CMOS 4000 series.This could be very useful for the professionals as well as hobbyist.
What is 7432 ic?
The 7432 is a quad two input OR gate with TTL levels.
Ic number of or gate?
Ttl: 7432, 744075cmos: 4071
What is the function of a ic 74HCT4020?
This is a faster version of the CMOS 4020.
