Tri-State Buffer
Digital
·
Generic
·
Curated by CircuitSim
Details
Manufacturer
Generic
Part number
—
Pins
3
Used in
No circuits
Added
Sep 2026
About this component
Non-inverting digital buffer with active-high EN. OUT follows IN while enabled and becomes high impedance while EN is low; ROUT and ROFF model drive strength and disabled leakage.
Parameters
Basic settings
4 parameters
VHIGH
High output voltage
Voltage driven for a logic-high output.
5 V
VTH
Input threshold
Voltage above which IN or EN is interpreted as logic high.
2.5 V
ROUT
Enabled output resistance
Series resistance of the enabled push-pull output.
20 Ω
ROFF
Disabled resistance
Residual output resistance while disabled; models high-impedance leakage.
1000000000000 Ω
Pins
Pins
3 pins
1
IN
Active-high logic data input.
2
EN
Active-high output enable; low selects high impedance.
3
OUT
Three-state logic output.
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