TJ3485 Datasheet | HTC KOREA

DESCRIPTION The TJ3485 is a low-power half-duplex transceiver that meets the specifications of RS-485 and RS-422. IC contains one driver and one receiver. The driver slew rates is not limited, allowing them to transmit up to 5Mbps. These transceivers draw between 120u A and 500u A of supply current when unloaded or fully loaded with disabled drivers. All parts operate from a single 3.3V 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 highimpedance states. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit. The ESD tolerance is more than ±8k V for both Human Body Model and ±15k V for IEC61000-4-2 Air Discharge Method on this device. FEATURES - Single 3.3V Supply - Low Quiescent Current: 300u A - -7V to +12V mon-Mode Input Voltage Range - Three-state Outputs - Half-Duplex Versions Available - Allows up to 32 Transceivers on the Bus - Data rate: 5 Mbps - Current-Limiting and Thermal Shutdown for Driver Overload Protection - ESD Specifications - ±15k V IEC61000-4-2 Air Discharge - ±8k V Human Body Model ' APPLICATIONS - Low Power RS-485 Systems - DTE-DCE Interface - Packet Switching - Local Area Networks - Data Concentration - Data Multiplexers - Integrated Services Digital Network (ISDN) SOP-8 TRUTH TABLE Transmission Inputs Receiver Inputs A-B ≥...