LMS75LBC176M ,Differential Bus Transceiversapplications with noisy environmentTypical Application20047901A typical multipoint application is s ..
LMS8117ADT-1.8 ,1A Low-Dropout Linear RegulatorLMS8117A 1A Low-Dropout Linear RegulatorJuly 2001LMS8117A1A Low-Dropout Linear Regulator
LMS8117ADT-3.3 ,1A Low-Dropout Linear RegulatorFeaturesn Available in 1.8V, 3.3V, and Adjustable VersionsThe LMS8117A is a series of low dropout v ..
LMS8117ADT-ADJ ,1A Low-Dropout Linear RegulatorFeaturesn Available in 1.8V, 3.3V, and Adjustable VersionsThe LMS8117A is a series of low dropout v ..
LMS8117ADTX-1.8 ,1A Low-Dropout Linear RegulatorFeaturesn Available in 1.8V, 3.3V, and Adjustable VersionsThe LMS8117A is a series of low dropout v ..
LMS8117ADTX-1.8 ,1A Low-Dropout Linear RegulatorApplicationsIts circuit includes a zener trimmed bandgap reference ton Post Regulator for Switching ..
LQH4N470K04 , CHIP COIL
LQH55DN100M03L , Chip Inductor (Chip Coil) Power Inductor (Wire Wound Type for Choke)
LQH55DN100M03L , Chip Inductor (Chip Coil) Power Inductor (Wire Wound Type for Choke)
LQH55DN222M03L , Chip Coils for Choke Large Current Type
LQH55DN2R2M03L , Chip Coils for Choke Large Current Type
LQH55DN330M03K , Chip Coils for Choke Large Current Type
LMS75LBC176M
Differential Bus Transceivers
LMS75LBC176
Differential Bus Transceivers
General DescriptionThe LMS75LBC176isa differential bus/line transceiver de-
signedfor bidirectional data communicationon multipoint
bus transmission lines.Itis designedfor balanced transmis-
sion lines.It meets TIA/EIA RS485 and ISO 8482:1987(E).
The LMS75LBC176 combinesa TRI-STATE™ differential
line driver and differential input receiver, bothof which oper-
ate froma single 5.0V power supply. The driver and receiver
havean active high and active low enable, respectively, that
canbe externally connectedto functionasa direction con-
trol. The driver and receiver differential inputs are internally
connectedto form differential input/output (I/O) bus ports
thatare designedto offer minimum loadingto bus whenever
the driveris disabledor when VCC=0V. These ports feature
wide positive and negative common mode voltage ranges,
making the device suitable for multipoint applicationsin
noisy environments. The LMS75LBC176is availableina
8-Pin SOIC package.Itisa drop-in socket replacementto
TI’s SN75LBC176.
Features Bidirectional transceiver Meet ANSI standard RS-485 Low skew, 6ns Low supply current, 8mA (max) Wide input and output voltage range High output drive capacity ±60mA Thermal shutdown protection Open circuit fail-safefor receiver Receiver input sensitivity ±200mV Receiver input hysteresis 10mV (min.) Single supply voltage operation,5V Glitch free power-up and power-down operation Pin and functional compatible with TI’s SN75LBC176 8-Pin SOIC
Applications Network hubs, bridges, and routers Pointof sales equipment (ATM, barcode readers,…) Industrial programmable logic controllers High speed parallel and serial applications Multipoint applications with noisy environment
Typical Application20047901 typical multipoint applicationis showninthe above figure. Terminating resistors,RT,are typically requiredbut only locatedatthetwo endsofthe cable.
Pullupandpull down resistors maybe requiredattheendofthebusto provide failsafe biasing.The biasing resistors provideabiastothe cable whenall
driversarein TRI-STATE,See National Application Note, AN-847for further information.
April 2003
LMS75LBC176
Differential
Bus
ransceivers
