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Logic Families and Their Characteristics
A pulse is not perfectly square; it takes time for the digital level to rise from 0 up to 1 and to fall from 1 down to 0.
True
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Logic Families and Their Characteristics
In TTL the noise margin is between 0.8 V and 0.4 V.
PMOS and NMOS are commonly used for small memories and microprocessors.
In ECL, the HIGH and LOW levels are determined by which transistor in a differential amplifier is conducting more.
The basic part numbers of ICs are the same regardless of the manufacturer because digital logic ICs have been standardized.
Schottky logic overcomes the saturation and stored charge problem by placing a Schottky diode across the base-to-collector junction.
A typical fan-out for most TTL is 9.
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