Product details

Number of receivers 2 Number of transmitters 2 Duplex Full Supply voltage (Nom) (V) 5 Signaling rate (Max) (Mbps) 10 IEC 61000-4-2 contact (+/- kV) None Fault protection (V) -10 to 15 Common mode range -7 to 12 Number of nodes 32 Isolated No ICC (Max) (mA) 110 Rating Catalog Operating temperature range (C) -20 to 85, 0 to 70
Number of receivers 2 Number of transmitters 2 Duplex Full Supply voltage (Nom) (V) 5 Signaling rate (Max) (Mbps) 10 IEC 61000-4-2 contact (+/- kV) None Fault protection (V) -10 to 15 Common mode range -7 to 12 Number of nodes 32 Isolated No ICC (Max) (mA) 110 Rating Catalog Operating temperature range (C) -20 to 85, 0 to 70
PDIP (N) 16 181 mm² 19.3 x 9.4 SOP (NS) 16 80 mm² 10.2 x 7.8
  • Meet or Exceed the Requirements of ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.10 and V.11
  • Designed for Multipoint Bus Transmission on Long Bus Lines in Noise Environments
  • Driver Positive- and Negative-Current Limiting
  • Thermal Shutdown Protection
  • Driver 3-State Outputs
  • Receiver Common-Mode Input Voltage Range of -12 V to 12 V
  • Receiver Input Sensitivity...±200 mV
  • Receiver Hysteresis...50 mV Typ
  • Receiver Input Impedance...12k Min
  • Receiver 3-State Outputs (SN751177 Only)
  • Operate From Single 5-V Supply
  • Meet or Exceed the Requirements of ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.10 and V.11
  • Designed for Multipoint Bus Transmission on Long Bus Lines in Noise Environments
  • Driver Positive- and Negative-Current Limiting
  • Thermal Shutdown Protection
  • Driver 3-State Outputs
  • Receiver Common-Mode Input Voltage Range of -12 V to 12 V
  • Receiver Input Sensitivity...±200 mV
  • Receiver Hysteresis...50 mV Typ
  • Receiver Input Impedance...12k Min
  • Receiver 3-State Outputs (SN751177 Only)
  • Operate From Single 5-V Supply

The SN751177 and SN751178 dual differential drivers and receivers are monolithic integrated circuits that are designed for balanced multipoint bus transmission at rates up to 10 Mbit/s. They are designed to improve the performance of full-duplex data communications over long bus lines and meet ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.10 and V.11.

The SN751177 and SN751178 driver outputs provide limiting for both positive and negative currents and thermal-shutdown protection from line-fault conditions on the transmission bus line.

The receiver features high input impedance of at least 12k , an input sensitivity of ±200 mV over a common-mode input voltage range of -12 V to 12 V, and typical input hysteresis of 50 mV. Fail-safe design ensures that if the receiver inputs are open, the receiver outputs always will be high.

The SN751177 and SN751178 are characterized for operation from -20°C to 85°C.

The SN751177 and SN751178 dual differential drivers and receivers are monolithic integrated circuits that are designed for balanced multipoint bus transmission at rates up to 10 Mbit/s. They are designed to improve the performance of full-duplex data communications over long bus lines and meet ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.10 and V.11.

The SN751177 and SN751178 driver outputs provide limiting for both positive and negative currents and thermal-shutdown protection from line-fault conditions on the transmission bus line.

The receiver features high input impedance of at least 12k , an input sensitivity of ±200 mV over a common-mode input voltage range of -12 V to 12 V, and typical input hysteresis of 50 mV. Fail-safe design ensures that if the receiver inputs are open, the receiver outputs always will be high.

The SN751177 and SN751178 are characterized for operation from -20°C to 85°C.

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* Data sheet Dual Differential Drivers And Receivers datasheet (Rev. D) 04 May 1999

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