WT3485/WT485 is a 3.3V/5V power supply, half-duplex, low power, low slew rate RS485 Transceiver. They Fully meets the TIA/EIA-485 standard. WT3485/WT485 includes a driver and a receiver, both of which can be independently enabled and disabled. When both are disabled, the driver and receiver outputs are high-impedance state. WT3485/WT485 has a 1/8-unit-load receiver input impedance, that allows up to 256 transceivers on the bus. The WT3485/WT485 features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 12/1Mbps.
|Part No||Supply Voltage(V)||Differential Driver Output (R=54Ω)(V)||Driver Common-mode Output (R=54Ω)(V)||Receiver Positive-going input threshold voltagee(mV)||Receiver Negative-going input threshold voltagee(mV)||ESD（HBM）A/B (KV)||ESD（HBM）(OTHER PINS) (KV)||True Fail-Safe Receiver||Nodes||Data transmission (Mbps)||Transmission Mode||Package||Data sheet|
|WT3485||3.3||1.5~VCC||3 (MAX)||200 (MAX)||-200 (MIN)||±4||±4||YES||256||12||Half-duplex||SOP8, MSOP8, DIP8|
|WT485||5.0||1.5~VCC||3 (MAX)||-50 (MAX)||-200 (MIN)||±16||±6||YES||256||1.0||Half-duplex||SOP8, DIP8|