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  • TI Thinks Resolved

TXB0108: Some questions for TXB0108

Part Number: TXB0108

Background:

- Application: SPI I/F level shift from VCCA= 1.8V and VCCB= 3.3V

- Signals: SPI_CLK (16.5MHz), /CS, SPI_DI, SPI_DO, /HOLD, /WP

Questions:

1. External pull up

As datasheet request, the external pull up has to be more than 50Kohm if it is required external pull.

For example, the application is not bi-direction. If input is at A side, and B side is output. Is this rule, external pull up over 50Kohm, also applying to input (A) side?

2. Thermal effect

What's kind of electrical parameter that will be easy to affect by thermal?

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