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SN65176B, SN75176B DIFFERENTIAL BUS TRANSCEIVERS SLLS101D – JULY 1985 – REVISED APRIL 2003 1 POST OFFICE BOX 655303 DALLAS, TEXAS 75265 D Bidirectional Transceivers D Meet or Exceed the Requirements of ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.11 and X.27 D Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments D 3-State Driver and Receiver Outputs D Individual Driver and Receiver Enables D Wide Positive and Negative Input/Output Bus Voltage Ranges D Driver Output Capability . . . ± 60 mA Max D Thermal Shutdown Protection D Driver Positive and Negative Current Limiting D Receiver Input Impedance . . . 12 k Min D Receiver Input Sensitivity . . . ± 200 mV D Receiver Input Hysteresis . . . 50 mV Typ D Operate From Single 5-V Supply description/ordering information The SN65176B and SN75176B differential bus transceivers are integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.11 and X.27. The SN65176B and SN75176B combine a 3-state differential line driver and a differential input line receiver, both of which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, that can be connected together externally to function as a direction control. The driver differential outputs and the receiver differential inputs are connected internally to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus when the driver is disabled or V CC = 0. These ports feature wide positive and negative common-mode voltage ranges, making the device suitable for party-line applications. ORDERING INFORMATION T A PACKAGE ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP (P) Tube of 50 SN75176BP SN75176BP 0 ° Cto70 ° C SOIC (D) Tube of 75 SN75176BD 75176B C to 70 Reel of 2500 SN75176BDR SOP (PS) Reel of 2000 SN75176BPSR A176B PDIP (P) Tube of 50 SN65176BP SN65176BP –40 ° C to 105 ° C SOIC (D) Tube of 75 SN65176BD 65176B Reel of 2500 SN65176BDR Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at Copyright 2003, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 8 7 6 5 R RE DE D V CC B A GND SN65176B.
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This note was uploaded on 08/12/2009 for the course IQ 23123 taught by Professor Varios during the Spring '09 term at Universidade de Brasília.

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