Joke Collection Website - Talk about mood - Tell me what this symbol is, wait! That's right. Get high marks! ! !
Tell me what this symbol is, wait! That's right. Get high marks! ! !
It's a three-input AND gate, y? =? ABC .
When the control terminal of the three-state gate is invalid, the output is in high impedance state, which is equal to an open circuit; The input of XOR gate is different, and the output is 1, which is the opposite of XOR gate. Flip-flops, counters and other devices are represented by rectangles in the same way. A small circle at the input and output terminals indicates that the level is low; An upward arrow indicates that the rising edge is valid; A down arrow indicates that the falling edge is valid.
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