shows a BCD counter that produces a four-bit output representing the BCD code for the number of pulses that have been applied to the counter input. For example, after four pulses have occurred, the counter outputs are DCBA = 01002 = 410. The counter resets to 0000 on the tenth pulse and starts counting over again. In other words, the DCBA outputs will never represent a number greater than 10012 = 910. (a) Design the logic circuit that produces a HIGH output whenever the count is 2, 3, or 9. Use K mapping and take advantage of the don’t-care conditions. (b) Repeat for x = 1 when DCBA = 3, 4, 5, 8.
shows a BCD counter that produces a four-bit output representing the BCD code for the number of pulses that have been applied to the counter input. For example, after four pulses have occurred, the counter outputs are DCBA = 01002 = 410. The counter resets to 0000 on the tenth pulse and starts counting over again. In other words, the DCBA outputs will never represent a number greater than 10012 = 910. (a) Design the logic circuit that produces a HIGH output whenever the count is 2, 3, or 9. Use K mapping and take advantage of the don’t-care conditions. (b) Repeat for x = 1 when DCBA = 3, 4, 5, 8.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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shows a BCD counter that produces a four-bit output representing the BCD code for the number of
pulses that have been applied to the counter input. For example, after four pulses have occurred, the
counter outputs are DCBA = 01002 = 410. The counter resets to 0000 on the tenth pulse and starts
counting over again. In other words, the DCBA outputs will never represent a number greater than
10012 = 910.
(a) Design the logic circuit that produces a HIGH output whenever the count is 2, 3, or 9. Use K
mapping and take advantage of the don’t-care conditions.
(b) Repeat for x = 1 when DCBA = 3, 4, 5, 8.
pulses that have been applied to the counter input. For example, after four pulses have occurred, the
counter outputs are DCBA = 01002 = 410. The counter resets to 0000 on the tenth pulse and starts
counting over again. In other words, the DCBA outputs will never represent a number greater than
10012 = 910.
(a) Design the logic circuit that produces a HIGH output whenever the count is 2, 3, or 9. Use K
mapping and take advantage of the don’t-care conditions.
(b) Repeat for x = 1 when DCBA = 3, 4, 5, 8.
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