TMDS181 VIL and VIH Parameter for SCL_SRC and SDA_SRC

Sadanori Kato

Hi,

The VIL and VIH parameter for SCL_SRC and SDA_SRC is mentioned on page 7 and page 11 of the data sheet.
However, these references are different. as below.
Could you please tell us which is correct ?

Page 7 :
VIH = 1.8V ~ 5.5V
VIL = -0.3V ~ 0.3 x VCC

Page 11 :
VIH = 0.7 x VCC ~ VCC + 0.5V
VIL = 0.3 x VCC(Max)

Best regards,
Kato

over 9 years ago

0 Moises Garcia over 9 years ago

TI__Mastermind 23815 points

Hi Kato,

This datasheet needs to be updated.
Use these parameters:

For all I2C pins
Vil= 0.3V to 0.V

For I2C source and sink
Vih=2.8V to 5.5V
For control I2C
Vih=1.8V to 5.5V

Regards

0 Sadanori Kato over 9 years ago in reply to Moises Garcia

Guru 36540 points

Hi Moises-san,

Thank you for your response.

the following specification is typo, is "VIL=0V to 0.3V" correct as below ?
Or is "VIL=-0.3V to 0.3V" correct ?
Could you please confirm it ?

> For all I2C pins
> Vil= 0.3V to 0.V

Best regards,
Kato

0 Moises Garcia over 9 years ago in reply to Sadanori Kato

TI__Mastermind 23815 points

Hi Kato,

Sorry my bad, I had a couple typos, in red are the fixes.

> For all I2C pins
> Vil= -0.3V to 0.8V

Regards

0 Sadanori Kato over 9 years ago in reply to Moises Garcia

Guru 36540 points

Hi Moises-san,

Thank you for confirming.
I understood.

Best regards,
Kato

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TMDS181 VIL and VIH Parameter for SCL_SRC and SDA_SRC