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RS-485/RS-422 Trasceiver
FEATURES
  - Low Quiescent Current: 300uA
- -7V to +12V Common-Mode Input Voltage Range
- Three-State Outputs
- 30ns Propagation Delays, 5ns Skew
- Operate from a Single 5V Supply
- Allows up to 32 Transceivers on the Bus
- Data Rate: 2.5 Mbps
- Current-Limiting and Thermal Shutdown for Driver Overload Protection
DESCRIPTION
  TJ485 is low-power transceiver for RS-485 and RS-422 communication. The IC contains one driver and one receiver. The driver slew rates of the TJ485 is not limited, allowing them to transmit up to 2.5 Mbps. These transceivers draw between 120 uA and 500 uA of supply current when unloaded or fully loaded with disables drivers. All parts operate from a single 5V supply. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit. The TJ485 is designed for half-duplex applications.
TJ485
SOP8
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