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ISL81485IU-T Datasheet

  • ISL81485IU-T

  • 5V, 30Mbps, RS-485/RS-422 Transceiver

  • 11頁(yè)

  • INTERSIL   INTERSIL

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ISL81485
Data Sheet
December 2003
FN6061
5V, 30Mbps, RS-485/RS-422 Transceiver
The Intersil ISL81485 is a BiCMOS, 5V powered, single
transceiver that meets both the RS-485 and RS-422
standards for balanced communication, and features a
larger output voltage and higher data rate to benefit high
speed applications.
Unlike competitive devices, this Intersil transceiver is
specified for 10% tolerance supplies (4.5V to 5.5V), and it
delivers a much larger worst case differential output voltage
(2.0V compared to the typical 1.5V) over the full supply
range. The increased output voltage translates into longer
reach, or better data integrity, at the 30Mbps data rate.
This device presents a 鈥? unit load鈥?to the RS-485 bus,
which allows up to 32 transceivers on the network.
Receiver (Rx) inputs feature a 鈥渇ail-safe if open鈥?design,
which ensures a logic high Rx output if Rx inputs are
floating.
Driver (Tx) outputs are short circuit protected, even for
voltages exceeding the power supply voltage. Additionally,
on-chip thermal shutdown circuitry disables the Tx outputs to
prevent damage if power dissipation becomes excessive.
Features
鈥?Specified for 10% Tolerance Supplies
鈥?High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 30Mbps
鈥?Large Differential Output Voltage. . . . 2.0V(min.) into 54鈩?/div>
鈥?Drop-In Replacement for the ADM1485
鈥?One Unit Load Allows up to 32 Devices on the Bus
鈥?Low Quiescent Current . . . . . . . . . . . . . . . . . . . . . 800
碌
A
鈥?-7V to +12V Common Mode Input Voltage Range
鈥?Three State Rx and Tx Outputs
鈥?15ns (Max) Propagation Delays, 5ns (Max) Skew
鈥?Operates from a Single +5V Supply (10% Tolerance)
鈥?Current Limiting and Thermal Shutdown for driver
Overload Protection
Applications
鈥?SCSI 鈥淔ast 20鈥?Drivers and Receivers
鈥?Factory Automation
鈥?Field Bus Networks
鈥?Security Networks
鈥?Building Environmental Control Systems
Ordering Information
PART NO.
(BRAND)
ISL81485IB
(81485IB)
ISL81485IB-T
(81485IB)
ISL81485IU
(1485)
ISL81485IU-T
(1485)
TEMP.
RANGE (
o
C)
-40 to 85
-40 to 85
-40 to 85
-40 to 85
PACKAGE
8 Ld SOIC
8 Ld SOIC
(Tape and Reel)
8 Ld MSOP
8 Ld MSOP
(Tape and Reel)
PKG. DWG. #
M8.15
鈥?Industrial/Process Control Networks
Pinout
M8.15
M8.118
RO 1
R
8
7
6
D
5
V
CC
B/Z
A/Y
GND
ISL81485 (SOIC, MSOP)
TOP VIEW
M8.118
RE 2
DE 3
DI 4
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2003. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

ISL81485IU-T 產(chǎn)品屬性

  • 2,500

  • 集成電路 (IC)

  • 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 1/1

  • RS422，RS485

  • 4.5 V ~ 5.5 V

  • 表面貼裝

  • 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）

  • 8-MSOP

  • 帶卷 (TR)

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