(Hong Kong)
Product Summary
The MAX487CSA+ is low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The driver slew rates of the MAX487CSA+ is not limited, allowing them to transmit up to 2.5Mbps. These transceivers draw between 120μA and 500μA of supply current when unloaded or fully loaded with disabled drivers. All parts operate from a single 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 MAX1487ESA+ feature quarter-unit-load receiver input impedance, allowing up to 128 MAX487/MAX1487 transceivers on the bus. Full-duplex communications are obtained using the MAX488–MAX491, while the MAX1487 is designed for half-duplex applications.
Parametrics
Absolute Maximum Ratings: (1)Supply Voltage (VCC): 12V; (2)Control Input Voltage (RE, DE): -0.5V to (VCC + 0.5V); (3)Driver Input Voltage (DI): -0.5V to (VCC + 0.5V); (4)Driver Output Voltage (A, B): -8V to +12.5V; (5)Receiver Input Voltage (A, B): -8V to +12.5V; (6)Receiver Output Voltage (RO): -0.5V to (VCC +0.5V); (7)8-Pin Plastic DIP (derate 9.09mW/°C above +70°C): 727mW; (8)8-Pin SO (derate 5.88mW/°C above +70°C): 471mW; (9)8-Pin μMAX (derate 4.1mW/°C above +70°C): 830mW; (10)8-Pin CERDIP (derate 8.00mW/°C above +70°C): 640mW; (11)Operating Temperature Ranges of MAX487CSA: 0°C to +70°C; (12)Storage Temperature Range: -65°C to +160°C; (13)Lead Temperature (soldering, 10sec): +300°C.
Features
Next Generation Device Features: (1)For Fault-Tolerant Applications; (2)For Space-Constrained Applications; (3)For Multiple Transceiver Applications; (4)For Fail-Safe Applications; (5)For Low-Voltage Applications.
Diagrams
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 MAX487CSA+ |
Maxim Integrated Products |
RS-422/RS-485 Interface IC RS-485/RS-422 Transceiver |
Data Sheet |
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MAX487CSA+T |
Maxim Integrated Products |
RS-422/RS-485 Interface IC RS-485/RS-422 Transceiver |
Data Sheet |
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