TXS0108E-Q1: About input / output pin

Koji Hayashi92

Mastermind 7030 points

Part Number: TXS0108E-Q1

Hi All,

The current configuration is VCCA = 3.3 V, VCCB = 5.0V (MCU).

Is there a situation where a through current flows to the input / output terminal when OE = Hi ?

Example, when the MCU: H, the level shifter: L, will a large current occur ?

Best Regards,

Koji Hayashi

over 6 years ago

0 ShreyasRao over 6 years ago

TI__Guru 62180 points

Hi Koji san,

When OE is high, the device is enabled and once the input is driven low, the output follows the input to be at low level.
This device acts as a switch; passing the low level from input to output and when the input is high, the output is pulled to high level using the internal pull up resistors.
The current consumption is through the power supply and pullup resistors connected to the channels.
You can read about the TXS devices here:
www.ti.com/.../scea044.pdf

0 Koji Hayashi92 over 6 years ago in reply to ShreyasRao

Mastermind 7030 points

Hi Shreyas-san

Thank you for response.
I understand.

Best Regards,
Koji Hayshi

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TXS0108E-Q1: About input / output pin