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LMS1487E

Features: ·Meet ANSI standard RS-485 and RS-422·Data rate 2.5 Mbps·Single supply voltage operation, 5V·Wide input and output voltage range·Thermal shutdown protection·Short circuit protection·Low quiescent current 660µA (max)·Allows up to 128 transceivers on the bus·Open circuit fail-safe fo...

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SeekIC No. : 004396778 Detail

LMS1487E: Features: ·Meet ANSI standard RS-485 and RS-422·Data rate 2.5 Mbps·Single supply voltage operation, 5V·Wide input and output voltage range·Thermal shutdown protection·Short circuit protection·Low qu...

LMS1487E Data Sheet

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Part Number:
LMS1487E
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·Meet ANSI standard RS-485 and RS-422
·Data rate 2.5 Mbps
·Single supply voltage operation, 5V
·Wide input and output voltage range
·Thermal shutdown protection
·Short circuit protection
·Low quiescent current 660µA (max)
·Allows up to 128 transceivers on the bus
·Open circuit fail-safe for receiver
·Extended operating temperature range −40°C to 85°C
·Drop-in replacement to MAX1487E
· Available in 8-pin SOIC and 8-pin DIP packages


Application

`Low power RS-485 systems
`Network hubs, bridges, and routers
`Point of sales equipment (ATM, barcode scanners,.)
`Local area networks (LAN)
`Integrated service digital network (ISDN)
`Industrial programmable logic controllers
`High speed parallel and serial applications
`Multipoint applications with noisy environment


Pinout

Connection Diagram


Specifications

Supply Voltage, VCC (Note 2) .................................................................6V
Input Voltage, VIN (DI, DE, or RE) ...............................−0.3V to VCC + 0.3V
Voltage Range at Bus Terminals (AB) ........................................−7V to 12V
Receiver Output ..........................................................−0.3V to VCC + 0.3V
Package Thermal Impedance, JA
SOIC ..............................................................................................125/W
DIP ...................................................................................................92/W
Junction Temperature (Note 3) ...........................................................150
Operating Free-Air Temperature
Range, TA
Commercial .................................................................................0 to 70
Industrial ................................................................................−40 to 85
Storage Temperature Range ................................................−65 to 150
Soldering Information
Infrared or Convection (20 sec.) .........................................................235
Lead Temperature Range .................................................................+260
ESD Rating (Human Body Model)(Note 4)
Bus Pins ...............................................................................................15kV
Other Pins ..............................................................................................2kV
ESD Rating (Machine Model)
All Pins .................................................................................................200V


Description

The LMS1487E is a low power differential bus/line transceiver designed for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines. It meets ANSI Standards TIA/ EIA RS422-B, TIA/EIA RS485-A and ITU recommendation and V.11 and X.27. The driver outputs and receiver inputs have ±15kV ESD protection. The LMS1487E combines a TRI-STATE™ differential line driver and differential input receiver, both of which operate from a single 5.0V power supply.

The driver and receiver have an active high and active low, respectively, that can be externally connected to function as a direction control. The driver outputs and receiver inputs are internally connected to form a differential input/output (I/O) bus port that is designed to offer minimum loading to bus whenever the driver is disabled or when VCC = 0V. These ports feature wide positive and negative common mode voltage ranges, making the device suitable for multipoint applications in noisy environments.

The LMS1487E is available in 8-Pin SOIC and 8-pin DIP packages. It is a drop-in replacement to Maxim's MAX1487E.




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