UM13088S8

The UM13088S8 are high-speed transceivers for RS-485 communication that contain one driver and one receiver. These devices feature 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 UM13088S8 driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The transceivers typically draw 650 μA of supply current when unloaded, or when fully loaded with the drivers disabled. All devices have a 1/8-unit-load receiver input impedance that allows up to 256 transceivers on the bus and are intended for half-duplex communications.

Key features

• RS-485 Transceivers
• Level Translators
• Industrial-Control Local Area Networks
• Telecommunications Security Systems Instrumentation Data Rates up to 10 Mbps
• True Fail-Safe Receiver while Maintaining EIA/TIA-485 Compatibility
• -7V to +12V Common-Mode Input Voltage Range
• Allows up to 256 Transceivers on the Bus
• Thermal Shutdown Current-Limiting for Driver Overload Protection