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Quad Tri-state Buffer IC - 74HC125

Quad Tri-state Buffer IC - 74HC125-Robocraze

Quad Tri-state Buffer IC - 74HC125

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  • Four Independent Non-Inverting Buffer Gates
  • Enabled Mode
  • Fast Switching Times
  • Operating Temperature up to 70°C
  • Standard TTL Switching Voltages

Quad Tri-state Buffer IC - 74HC125

The 74HC Series 74HC125 Quad Tri-state Buffer IC contains four independent gates each of which performs a non-inverting buffer function. The outputs have the 3-STATE feature. When enabled, the outputs exhibit the low impedance characteristics of a standard LS output with additional drive capability to permit the driving of bus lines without external resistors.

When disabled, both the output transistors are turned off presenting a high-impedance state to the bus line. Thus the output will act neither as a significant load nor as a driver. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the disable time is shorter than the enable time of the outputs. 


Pinout of 74HC125 IC

Package Includes:

  • 1 x IC - 74HC125


Supply Voltage (VCC) 7 V
Input Voltage (VI) 7 V
Operating free-air temperature range 0°C to +70°C 
Storage temperature range –65°C to +150°C


1.What is the function of the 74HC125 IC?

  • The 74HC125 is a quad buffer gate with three output states. It is frequently used in digital circuits to isolate and amplify signals, and it enables multiple devices to share the same data bus.

2.Can the 74HC125 IC be used for level-shifting applications? 

  • Yes, because it can operate at different voltage levels on the input and output sides, the 74HC125 IC can be used for level-shifting applications. When multiple devices must share the same bus, this prevents signal conflicts.