UM3488EESA全双工RS422收发器

Product Description

The UM3488EESA is a ±15kV electrostatic discharge (ESD)-protected, high-speed transceiver for RS-422 communication that contains one driver and one receiver. The device features fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The UM3488EESA allows transmit speeds up to 10Mbps. The device features enhanced ESD protection. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model.

These transceivers typically draw 180μA of supply current when unloaded, or when fully loaded with the drivers disabled.

The device has a 1/8-unit-load receiver input impedance that allows up to 256 transceivers on the bus. The UM3488EESA is intended for full-duplex communications.

Features

- ESD Protection for RS-422 I/O Pins

 ±15kV, Human Body Model

- True Fail-Safe Receiver while Maintaining EIA/TIA-422 Compatibility

- Maximum Data Rate up to 10Mbps

- Error-Free Data Transmission

- Allow Up to 256 Transceivers on the Bus

Applications

- RS-422 Communications

- Level Translators

- Transceivers for EMI-Sensitive Applications

- Industrial-Control Local Area Networks