TXU0204-Q1: VT+/VT-/⊿VT spec during VCC=3.3V

Hello Kuramochi-san,

Unfortunately, we don't have values at Vcc=3.3V. Logic and level translator devices always operate approximately 10% below the nominal supply since MOSFET resistances increase at lower voltages.

Is there a reason why customer can't use 3V condition? The differences between 3V and 3.3V will be very minor.

Regards,

Josh  

Hello Joshua-san,

They will use this device under Vcc=3.3V condition, so they are asking about spec at 3.3V.

Also, Their system has possibility that input signal for TXS0204-Q1 may be middle supply condition.

So they are considering to use resistor divider for changing middle voltage to the outside of High threshold of this device.
Therefore, they need correct value during Vcc=3.3V.

Could we use following method to estimate spec during 3.3V?
[FAQ] What method is best used for estimating specification values between those given in the datasheet? 

Best regards,
Kazuki Kuramochi

Hi Kuramochi-san,

Yes the FAQ can be used to estimate spec values between two different test conditions. 

There isn't an TXS0204-Q1 in our portfolio. Did customer mean to say TXU0204-Q1? If so, middle supply condition input signals will result in unreliable inputs further leading to unreliable logic outputs. It is important that their input logic signals can meet our VIH/ VIL, and in this case, the Vt+ and Vt- thresholds. 

Regards,

Jack

Hi Jack-san,

Sorry for making confusion.
Yes, the question is for TXU0204-Q1.

I suppose that internal Schmitt trigger can avoid the risk from middle supply.

I'll share actual waveform by mail and let's discuss offline.

Best regards,
Kazuki Kuramochi

Hello Jack-san,

Sorry for rushing you but could you please confirm following subject mail from me?

TXU0204-Q1: VT+/VT-/⊿VT spec during VCC=3.3V

Best regards,
Kazuki Kuramochi