Figure 8-59(a) shows a 7406 open-collector inverting buffer used to control the ON/OFF status of an LED
Question:
Figure 8-59(a) shows a 7406 open-collector inverting buffer used to control the ON/OFF status of an LED to indicate the state of FF output Q. The LED’s nominal specification is VF = 2.4 V at IF = 20 mA, and IF(max) = 30 mA.
(a) What voltage will appear at the 7406 output when Q = 0?
(b) Choose an appropriate value for the series resistor for proper operation.
Figure 8-59
Transcribed Image Text:
J K 74LS112 Q 10 7406 +5 V Rs O 7406 (b) +12 V Relay coil
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a When the flipflop output Q is 0 the 7406 opencollector inverting buffer will output a high voltage ...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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