This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • TI Thinks Resolved

SN74LVC1G3157: SN74LVC1G3157

Prodigy 10 points

Replies: 1

Views: 289

Part Number: SN74LVC1G3157

Does the 74LVC1G3157G input/output voltage swing need to equal or lower than Vcc(power pin)?

You could refer to the below circuit, we use this case which Vcc and select pin is 3.3V level, and the IO to control the LED with 5V power.

Is there any risk with this configuration?

Thanks

Allen

  • Allen,

    If there is 5V on the I/O pin (A/B0/B1) of the SN74LVC1G3157 with Vcc =3.3V it will violate the recommended operating conditions of the device.   

    To support I/O voltages greater than Vcc you will need a device with beyond Vcc feature like the TMUX1072  or TMUX1574 device where the max I/O voltage limit is not referenced to Vcc.  

    Thank you, 

    Adam

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.