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Protection against noise in TTL (Transistor-Transistor Logic) circuits is essential because noise can lead to false triggering of logic levels, causing erroneous outputs and unreliable performance. TTL circuits operate with specific voltage thresholds, and any voltage fluctuations due to noise can disrupt signal integrity. Implementing noise protection, such as proper grounding, decoupling capacitors, and shielding, helps maintain stable operation and ensures accurate data processing in digital systems.
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What is the noise margin for standard TTL gates?
The low state dc noise margin for TTL dates is 0.3v and the high state noise margin is 0.7v
What is the TTL high noise range?
TTL (Transistor-Transistor Logic) high noise range refers to the voltage levels that are considered acceptable for a logic high state in TTL circuits. Typically, for standard TTL, a voltage above 2.0 volts is interpreted as a logical high, while voltages below this may be seen as low. The high noise margin is the difference between the minimum high input voltage (2.0V) and the maximum output low voltage (0.8V), resulting in a noise margin that ensures reliable operation despite voltage fluctuations. This margin helps prevent false triggering in digital circuits.
Why an open ttl gate behaves as a logic high input?
because TTL have a bias input setup to eliminate noise therefore the output will follow the logic one input if left open
What should be done with the unused inputs of a TTL integrated circuit?
Unused ttl inputs would normally default to logic 1 if left floating. but these inputs could act as antennas under certain conditions and they could pick up noise which can cause the circuit to malfunction. it is better to tie unused inputs to Vcc through a 1k resistor (74LS, 74XX etc) or simply return the inputs to ground. for most other ttl families, the 1k resistor might not be required.- Stan (Nigeria)
Interfacing of ttl with cmos and cmos with ttl?
whis is Endurance mors or ttl
Why do TTl integrated circuits assume unconnected inputs to be at logic?
Unused ttl inputs would normally default to logic 1 if left floating. but these inputs could act as antennas under certain conditions and they could pick up noise which can cause the circuit to malfunction.
Which has a shorter propagation delay TTL or CMOS?
TTL
What is the full form of TTL?
TTL stands for Time To Live
What is the value of ttl set to in Tunnel mode for IPSec?
TTL is set to 40
TTL logic is preferred to DRL logic?
TTL is faster and does not lose amplitude
What it the fullform of TTL in ping utility?
The full form of TTL is Time To Live
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.
