The keypad is connected to a 74373 octal transparent latch as shown in Figure 10-50. The output
Question:
The keypad is connected to a 74373 octal transparent latch as shown in Figure 10-50. The output is correct as long as a key is held. However, it is unable to latch data between key presses. Why will this circuit not work correctly?
Figure 10-50
Transcribed Image Text:
Keypad C D E F CO 9 5 0 1 A B 6 2 7 3 Encoder DAV adãå Latch En 8888 Outputs
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The circuit in Figure 1050 will not work correctly because the data from the keypad is not latched before the DAV Data Available signal goes low This ...View the full answer
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Related Book For
Digital Systems Principles And Application
ISBN: 9780134220130
12th Edition
Authors: Ronald Tocci, Neal Widmer, Gregory Moss
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