Sequential logic - Wikipedia, the free encyclopedia
In digital circuit theory, sequential logic is a type of logic circuit whose output depends not only on the present input but also on the history of the input. This is in contrast to combinational ...
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Digital logic may be divided into two classes: combinational logic, in which the logical outputs are determined by the logical function being performed and the logical input states at that particular moment; and sequential logic, in which the outputs also depend on the prior states of those outputs.
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· A sequential circuit uses flip flops. Unlike combinational logic, sequential circuits have state, which means basically, sequential circuits have memory. · The main difference between sequential circuits and combinational circuits is that...
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Analysis of sequential logic circuits. D. Pai* and D. Lewinf. In the analysis and simulation of sequential circuits, and in particular asynchronous ...
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This is a very common scenario in a sequential logic circuit. Hence the output of the sequential logic at any qualifying event (i.e. the active edge of the clock for a synchronous sequential logic) will depend on the external input and also on the current output.
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2 as φ, which clocks SRFF 202 and shift register 204 . The divider circuit of FIG. 2 is seen to be a synchronous sequential logic circuit, where there is feedback from some or all of the output ports to the input ports.
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Abstract of EP0445826 A logic circuit part (10), which is composed of a flip-flop group (11) and a combinational circuit (12) and performs a sequential logic operation, is added wi ... 1. A sequential logic circuit device comprising: &numsp &numsp &numsp a logic circuit part (10) composed of a flip-flop group (11) including...
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Like combinational logic circuits, a sequential logic circuit has inputs (labelled with x with subscripts) and outputs (labelled with z with subscripts).
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G. De Micheli, R.K. Brayton and A. Sangiovanni-Vincentelli, Symbolic design of combinational and sequential logic circuits implemented by two-level logic macros, IEEE Transactions on Computer Aided Design 5 (1986), 597--616. ... Symbolic design of combinational and sequential logic circuits implemented bytwo-level macros.
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Step 1: Create a state transition diagram for the desired sequential circuit ... The design of sequential circuits follows a six-step process starting with a state transition diagram and ending with a completed circuit diagram. Except for the ... Step 5: Use simplified functions for D1 and D2 to design sequential circuit...
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