CBM3485AS中文资料RS-485/RS-422收发器数据手册COREBAI规格书

描述 Description

The CBM3485 is low-power transceivers for RS-485 and RS- 422 communication. IC contains one driver and one receiver. The driver slew rates of the CBM3485 is not limited, allowing them to transmit up to 5Mbps.  

These transceivers draw between 120µA and 500µA 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 high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.  

特性 Features

• Low Quiescent Current: 300µA
• -7V to +12V Common-Mode Input Voltage Range
• Three-State Outputs
• 80ns Propagation Delays, 5ns Skew
• Half-Duplex Versions Available
• Operate from a Single 3.3V Supply
• Allows up to 32 Transceivers on the Bus
• Data rate: 5 Mbps
• Current-Limiting and Thermal Shutdown for Driver Overload Protection
• Enhanced ESD Specifications:
• ±15kV IEC61000-4-2 Air Discharge
• ±8kV IEC61000-4-2 Contact Discharge