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Integrated-Circuit Logic Families
Whenever a totem-pole TTL output goes from LOW to HIGH, a high-amplitude current spike is drawn from the Vcc supply. How is this effect corrected to a digital circuit?
By connecting a radio-frequency capacitor from Vcc to ground.
By using a switching power supply
By connecting a capacitor from Vout to ground
By connecting a large resistor from Vcc to Vout
Correct Answer:
By connecting a radio-frequency capacitor from Vcc to ground.
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