型号: 75176B
厂商: Texas Instruments Texas Instruments
描述: differential bus transceivers
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SN65176B, SN75176B  
DIFFERENTIAL BUS TRANSCEIVERS  
SLLS101D – JULY 1985 – REVISED APRIL 2003  
SN65176B . . . D OR P PACKAGE  
SN75176B . . . D, P, OR PS PACKAGE  
(TOP VIEW)  
Bidirectional Transceivers  
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  
R
RE  
DE  
D
V
B
A
1
2
3
4
8
7
6
5
CC  
Designed for Multipoint Transmission on  
Long Bus Lines in Noisy Environments  
GND  
3-State Driver and Receiver Outputs  
Individual Driver and Receiver Enables  
Wide Positive and Negative Input/Output  
Bus Voltage Ranges  
Driver Output Capability . . . ±60 mA Max  
Thermal Shutdown Protection  
Driver Positive and Negative Current  
Limiting  
Receiver Input Impedance . . . 12 kMin  
Receiver Input Sensitivity . . . ±200 mV  
Receiver Input Hysteresis . . . 50 mV Typ  
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  
= 0.  
CC  
These ports feature wide positive and negative common-mode voltage ranges, making the device suitable for  
party-line applications.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
PACKAGE  
T
A
PDIP (P)  
SOIC (D)  
Tube of 50  
Tube of 75  
Reel of 2500  
Reel of 2000  
Tube of 50  
Tube of 75  
Reel of 2500  
SN75176BP  
SN75176BP  
SN75176BD  
SN75176BDR  
SN75176BPSR  
SN65176BP  
SN65176BD  
SN65176BDR  
0°C to 70°C  
75176B  
SOP (PS)  
PDIP (P)  
A176B  
SN65176BP  
–40°C to 105°C  
SOIC (D)  
65176B  
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are  
available at www.ti.com/sc/package.  
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.  
Copyright 2003, Texas Instruments Incorporated  
On products compliant to MIL-PRF-38535, all parameters are tested  
unless otherwise noted. On all other products, production  
processing does not necessarily include testing of all parameters.  
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.  
1
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