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TCA9539-Q1: P2P Replacement

Xiaowei Zhang
Expert 5015 points
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

  • 0
    TI__Guru 53788 points

    Hi Xiaowei, 

    Xiaowei Zhang said:
    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. 

    Xiaowei Zhang said:
    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