This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TCA9539-Q1: P2P Replacement

Part Number: TCA9539-Q1
Other Parts Discussed in Thread: TCAL9539-Q1, TCA9539A-Q1

Hi team,

My customer asked:

1.Are TCA9539QPWRQ1 and TCA9539AQPWRQ1 Pin to Pin and software competiale?

2. Does TCAL9539-Q1 has Pin to Pin OPN to replace TCA9539QPWRQ1? And are TCAL9539-Q1 and TCA9539QPWRQ1 software competiale?

Best Regards,

Xiaowei Zhang

  • Hi Xiaowei, 

    1.Are TCA9539QPWRQ1 and TCA9539AQPWRQ1 Pin to Pin and software competiale?

    They are p2p and software compatible down to the registers and to the device address. 

    TCA9539BQPWRQ1 is the other device that is also p2p, but has a different device address. This makes it so you can have 4 x TCA9539A-Q1's and 4 x TCA9539B-Q1's on the same I2C bus. 

    2. Does TCAL9539-Q1 has Pin to Pin OPN to replace TCA9539QPWRQ1? And are TCAL9539-Q1 and TCA9539QPWRQ1 software competiale?

    So it is not p2p purely because TCAL9539-Q1 is only offered in WQFN. 

    TCAL9539-Q1 is software compatible and adds additional agile I/O registers for extended feature sets. 

    Regards,

    Tyler