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Original question:

TXS02324: Detect SIM Card Plug in or not

TXS02324: Circuit Check

Julian Chen
Expert 2550 points
Part Number: TXS02324

Hi E2E,

Could you kindly review circuit of TXS02324?

Thanks!

  • 0
    TI__Guru 58170 points
    Julian,

    U15 is listed as TXS02324 but the pin out doesnt match the device.
    The U14, I dont see connections where the IOs are going into or coming out of. I just wanted to let know that there are internal pullup/pulldown resistors on the SIM IO pins(20k typical) as listed in page 12.
    I see that the LDO recommendations(page 15) are also followed with the right caps.