PCA9306-Q1: Vref1 1.8V Vref2 3.7V Compadibility

David Shumate

Expert 5535 points

Part Number: PCA9306-Q1
Other Parts Discussed in Thread: PCA9306

Hi Team,

Can you confirm that the PCA9306 is compatible using a VREF1 of 1.8V and a VREF2 of 3.7V?

I'm assuming yes, based on the statement here:

But the following made me second guess:

Best,

David

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 242930 points

All voltages between the minimum and maximum are supported. The list on p. 1 contains just common examples.

+1 Jack Guan over 1 year ago

TI__Genius 15920 points

Hey David,

Yes you are correct- the device can be used in the configuration (VREF1- 1.8V and VREF2- 3.7V). Voltage translation will be performed as long as VREF1 is at least 1.2V, and VREF2 is at least 0.6V greater than VREF1. The second screenshot you referenced are just some of the common translation nodes.

Regards,

Jack

Interface

Interface forum

PCA9306-Q1: Vref1 1.8V Vref2 3.7V Compadibility