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  • SN75C3221: Can the V- be controlled

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    Part Number: SN75C3221 Hi, I've got a circuit that needs a negative voltage reference, basically no current draw. Is there a way to control the V- pin on the SN75C3221? We basically have two modes of operation in our circuit; 1 requires the RS-232…
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  • RE: MAX3221: Same die as MAX3221E?

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    The TRS3221 is the same. I doubt that better ESD protection is possible with the same die. You can also consider TRSF3221(E) and SN65C3221(E)/SN75C3221(E) with higher speeds.
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  • 3221 RS-232 driver/receiver auto-powerdown mode

    Resolved
    Other Parts Discussed in Thread: SN75C3221 , SN65C3221 Hello - In the SN65C3221/SN75C3221 datasheet, the "auto-powerdown" (low power/sleep) mode is described like this: "During this mode of operation, if the devices do not sense a valid RS-232…
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