UM3090 Datasheet - Union Semiconductor

UM3090 True RS-485 Transceivers

The UM3090EESA is ±15kV ESD-protected, high-speed transceiver for RS-485 communication that contains one internal low-dropout regulator, one driver and one receiver. The internal LDO allows the device to operate from an unregulated power supply of up to 30V. The internal LDO generates a 5V±5% power.

UM3090 Features

* fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open, shorted or idle. This means that the receiver output will be logic high if all transmitters on a terminated bus are disabled (high impedance). The UM3090EESA features reduced slew-rate driver that

UM3090 Datasheet (265.51 KB)