• Cadenti
  logic family
  medium scale integration
  metal oxide semiconductor
  ac register
  accumulator logic
  adder circuit
  basic computer design
  branch unconditionally
  flowchart
  input and output communication
  input output instruction
  input register
  interrupt cycle
  logic adder circuits
  logic gates
  output register
  register and memory
  binary code
  binary number
  clock pulse
  data types
  decimal numbers
  

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State Table

The behavior of a sequential circuit is determined from the inputs, the outputs, and the state of its flip-flops. Both the outputs and the next state are a function of the inputs and the present state. A sequential circuit is specified by a state table that relates outputs and next states as a function of inputs and present states. In clocked sequential circuits, the transition from present state to next state is activated by the presence of a clock signal.

Table 1-4

The state table for the circuit of Fig. 1-25 is shown in Table 1-4. The table consists of four sections, labeled present state, input, next state, and output.

Figure 1-25

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