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rs232 transceivers

yossi hagag
Prodigy 90 points
Other Parts Discussed in Thread: TRSF3221E, TRS3221E

Hi

I am looking for a rs232 transceiver that is receiver side input is in HIGHZ when the entire transceiver is without any power.

I need it to work in 3v or 3.3v . I need only one driver side and one receiver side (1 tx 1 rx).

my problem is that I have outside equipment that works with rs232 and have power also on it TX line and I need that line in my board to be HIGHZ even when by board has o power

regards

Yossi  

  • 0
    TI__Mastermind 25705 points

    Yossi,

    I understand your request. However as I'm aware of, TI doesn't have RS232 with the high Z RX. Per RS232 standard, all receivers are internally pulled down to ground by a 5kOhm resistor. TRS3221E and TRSF3221E are 1TX/1RX devices working with 3V.

    Regards,

    Hao