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The waveforms in Figure 7-36 are applied to a gated S-R latch like the one in Figure 7-6. Show the Q and Q output waveforms. The latch is initially RESET.

The waveforms in Figure 7-36 are applied to a gated S-R latch like the one in Figure 7-6. Show the Q and Q output waveforms. The latch is initially RESET.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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**Text for Educational Website** **Figure 7-36 Explanation:** The waveforms in Figure 7-36 are applied to a gated S-R (Set-Reset) latch similar to the one in Figure 7-6. The task is to determine the Q and \( \overline{Q} \) output waveforms. Initially, the latch is in the RESET state. **Waveform Diagram:** 1. **Signal S (Set):** The waveform for the S input transitions between low and high states. It begins low, goes high, and switches back, following an irregular pattern. 2. **Signal R (Reset):** The waveform for the R input also alternates between low and high states. Its pattern is independent and different from Signal S. 3. **Signal EN (Enable):** The enable signal determines when the latch can change states based on S and R inputs. When the EN signal is high, the latch is responsive to changes in S and R. When EN is low, the latch holds its current state regardless of S and R. **Diagram Explanation:** The graph displays the timing sequences of the S, R, and EN signals. Vertical dashed lines indicate moments of transitions for these signals, which affect the behavior of the latch: - With EN high, if S is also high and R is low, the latch will set (Q goes high, \( \overline{Q} \) goes low). - With EN high, if R is high and S is low, the latch will reset (Q goes low, \( \overline{Q} \) goes high). - If both S and R are low, the latch will hold its state. - If both S and R are high with EN high, it results in an invalid state for a simple S-R latch; typically, this condition is avoided. Understanding these waveforms is crucial for analyzing and designing sequential circuits using gated latches.
Transcribed Image Text:**Text for Educational Website** **Figure 7-36 Explanation:** The waveforms in Figure 7-36 are applied to a gated S-R (Set-Reset) latch similar to the one in Figure 7-6. The task is to determine the Q and \( \overline{Q} \) output waveforms. Initially, the latch is in the RESET state. **Waveform Diagram:** 1. **Signal S (Set):** The waveform for the S input transitions between low and high states. It begins low, goes high, and switches back, following an irregular pattern. 2. **Signal R (Reset):** The waveform for the R input also alternates between low and high states. Its pattern is independent and different from Signal S. 3. **Signal EN (Enable):** The enable signal determines when the latch can change states based on S and R inputs. When the EN signal is high, the latch is responsive to changes in S and R. When EN is low, the latch holds its current state regardless of S and R. **Diagram Explanation:** The graph displays the timing sequences of the S, R, and EN signals. Vertical dashed lines indicate moments of transitions for these signals, which affect the behavior of the latch: - With EN high, if S is also high and R is low, the latch will set (Q goes high, \( \overline{Q} \) goes low). - With EN high, if R is high and S is low, the latch will reset (Q goes low, \( \overline{Q} \) goes high). - If both S and R are low, the latch will hold its state. - If both S and R are high with EN high, it results in an invalid state for a simple S-R latch; typically, this condition is avoided. Understanding these waveforms is crucial for analyzing and designing sequential circuits using gated latches.
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