7406 74LS06 Hex Inverter Buffers and Drivers with Open Collector High Voltage Outputs

Hex inverter integrated circuits (ICs) have six (hex) NOT logic gates in them.

7406 74LS06 Hex inverter buffers and drivers with open collecter high voltage outputs demonstration circuit schematic diagram by the electronzap electronzapdotcom
7406 74LS06 Hex inverter buffers and drivers with open collecter high voltage outputs demonstration circuit schematic diagram by the electronzap electronzapdotcom
  • 74LS06 is a special type of integrated circuit (IC) in that the output can have a much higher voltage applied to the output than what is powering the IC.
  • Open collector output: Internally, the output turns off completely when high, and connects directly to ground when low. A pull up resistor is needed to provide any positive supply voltage/current to any load at the output. That same voltage/current is sunk to ground through the output when it is low.
  • NOT gates: Output low when the input is high and output high when the input is low.
Open collector output discharge terminal illustrated diagram by electronzap electronzapdotcom
Open collector output discharge terminal illustrated diagram by electronzap electronzapdotcom


Kit above contains Low Power Schottky (LS) 7400 series ICs. Including the 74LS06 as of 8/30/2022. It’s an affiliate link as that supports this site.

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