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  • TI Thinks Resolved

CD4048B: Kd pin functionality

Prodigy 165 points

Replies: 2

Views: 175

Part Number: CD4048B

Hi,

We are using CD4048B for one of the project. As per datasheet Kd pin is used for 3-state output or logic 1 and 0 output (Page-3-137). But as per page 3-140, Kd = 1 -> Normal inverter Action or Kd= 0 -> High impedance output. 

This IC i am using as a AND gate and tied Kd pin to Vcc. Is it will work as AND or NAND gate ?

  • Hi Sushant,

    The Kd pin is essentially an enable pin. With it being high, the device outputs are active and the function should be AND with how Ka, Kb, and Kc are configured.

    Check out our new AXC family of Voltage Translators! 

    Watch the Introduction to AXC Family to find out more about the family.

  • Hi Sushant,

    things become very simple when you have a look into the logic diagram in figure 2 of datasheet. It tells it all.

    Kai

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