Johnson Counter 4-Bit
Digital
·
Generic
·
Curated by CircuitSim
Details
Manufacturer
Generic
Part number
—
Pins
7
Used in
No circuits
Added
Sep 2026
About this component
Four-bit Johnson (twisted-ring) counter. RESET synchronously clears to 0000; enabled rising edges shift the inverted Q3 state into Q0 for an eight-state sequence.
Parameters
Logic levels
2 parameters
VTH
Input threshold
Voltage at or above which an input is interpreted as logic high.
2.5 V
VHIGH
High output voltage
Voltage driven for a defined logic-high output.
5 V
Timing and state
2 parameters
TPD
Propagation delay
Clock-to-output propagation delay.
1n s
INITIAL_STATE
Initial state
Initial unsigned state represented by Q3..Q0.
0
Pins
Pins
7 pins
1
ENABLE
Active-high count enable; low holds state.
2
CLK
Rising-edge clock input.
3
RESET
Active-high synchronous reset; highest-priority control.
4
Q0
Counter state bit 0 (least significant).
5
Q1
Counter state bit 1.
6
Q2
Counter state bit 2.
7
Q3
Counter state bit 3 (most significant).
Public circuits using this component
No public circuits are using this component yet.
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