


High Reliability Isolated Half- Duplex RS-485 Transceivers
CMT83089 is a high reliability isolated half duplex RS-485 transceiver based on CMOSTEK digital isolation technology.
It is safety certified by UL1577 support 5kVrms insulation withstand voltages, while providing high electromagnetic immunity and low emissions at low power consumption.
The Bus pin of CMT83089 is protected from ±12kV system level ESD to GND2 on Bus side. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. The devices have a 1/8-unit-load receiver input impedance that allows up to 256 transceivers on the bus.
The data rate of CMT83089 is 12Mbps. The device is slew limited to reduce EMI and reflections with improperly terminated transmission line.
The CMT83089 is available in wide-body (WB) 16-pin SOIC packages.
Transmission Speed:
12MbpsIsolation Voltage:
5KVrmsCMTI:
±200 kV/usSurge Class:
10kVpkESD Rating:
8KvOperating Voltage:
2.5-5.5VOperating Mode:
full-duplexTemperature Range:
-40℃~125℃Package:
SOW16