SLLS059E February   1990  – February 2024 SN751177 , SN751178

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Thermal Information
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Driver Sections
      1. 5.4.1 Electrical Characteristics
      2. 5.4.2 Switching Characteristics
      3. 5.4.3 Symbol Equivalents
    5. 5.5 Receiver Sections
      1. 5.5.1 Electrical Characteristics
      2. 5.5.2 Switching Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Device Functional Modes
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • NS|16
  • N|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

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 Mbits. The devices 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 12kΩ, an input sensitivity of ±200mV over a common-mode input voltage range of −12V to 12V, and typical input hysteresis of 50mV. Fail-safe design makes sure the receiver inputs are open, the receiver outputs are always high.

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

Package Information
PART NUMBERPACKAGE(1)PACKAGE SIZE(2)
SN751177
SN751178		PDIP (N, 16)19.3mm × 9.4mm
SO (NS, 16)10.2mm × 7.8mm
(1) For more information, see Section 10.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
GUID-0E1C0824-CF0E-4437-940B-252856455D94-low.pngLogic Symbols(1)
GUID-93A141EE-9699-4A97-A99B-9C8C6E4979E7-low.pngLogic Diagrams (Positive Logic)
†. These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.