Digital Electronics - Digital Design - Discussion
Discussion Forum : Digital Design - General Questions (Q.No. 18)
18.
The output of a standard TTL NAND gate is used to pull an LED indicator LOW. The LED is in series with a 470-
resistor. What is the current in the circuit when the LED is on?
resistor. What is the current in the circuit when the LED is on?Discussion:
1 comments Page 1 of 1.
Bahke said:
4 years ago
Forward voltage of an LED is between 1.8 and 3.3 volts.
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