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TRS3122E: Looking for RS232 Transceiver with Hi-Z Input

Part Number: TRS3122E
Other Parts Discussed in Thread: SN75C189, DS14C89A, MC1489A

Hi Team,

My customer is looking for an RS232 transceiver without the internal 5k pulldown on the receiver input (or with the option of enabling/disabling it). My understanding is that this is defined by the standard so I assume all of our devices have it. Can you please confirm if we have anything with a high impedance input?

Thanks,

Antonio