MAX485 Transceiver IC DIP-8 Package

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The MAX485 is a low-power transceiver that supports RS-485 and RS422 communication. The integrated circuit has one driver and one receiver. The MAX485 driver slew rates are not limited, allowing them to transmit up to 2.5Mbps. When empty or fully loaded with deactivated drivers, these transceivers demand between 120A and 500A of supply current. All components are powered by a single 5V supply. Drivers are short-circuited current restricted and protected from excessive power dissipation by thermal shutdown circuitry that puts the driver outputs in a high-impedance condition. If the receiver input is an open circuit, a fail-safe mechanism ensures a logic-high output. The MAX485 is intended for use in half-duplex applications.


  • Low Quiescent Current: 300µA 
  • -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: 2.5Mbps
  • Current-Limiting and Thermal Shutdown for Driver Overload Protection 
  • The transmitter outputs and receiver inputs are protected to ±15kV Air ESD


Part Number MAX485
Half/Full Duplex Half
Input Current -0.8 ~ 1.0mA
Data Rate (Mbps) 2.5
Slew-Rate Limited No
Low-power Shutdown No
Receiver/ Driver Enable Yes
Number Of Receivers On Bus 32
Pin Count 8
Operating Temperature Range 0°C to 70°C
Dimensions  9.5mm x 8.4mm x 7.4mm
Country of Origin China

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