A NAND gate has inputs A and B and output C. If the output was zero, what are the inputs?
- A=1 B=1.
- A=0 B=0.
- A=1 B=0.
Explanation from PART66Online
A NAND gate is an inverted AND, so its output goes to 0 only when the underlying AND condition is met, that is when both inputs are 1. Therefore an output of 0 means A = 1 and B = 1. Any combination containing a 0 keeps the NAND output at 1.
S
Sokeros asked · 25 May 2020
EXPLAIN PLS
Community Comments (2)
J
Jordi
28 May 2020
Because if the inputs are 1 and 1 the output will be (because the gate is NAND) 1*1=1 but it will be inversed because it is NAND as i mentioned before so the inversed of 1 is 0.
S
Sokeros
28 May 2020
indeed. Thx!
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