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ISL8483EIP PDF预览

ISL8483EIP

更新时间: 2024-11-05 22:55:35
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
14页 415K
描述
ESD Protected to 【15kV, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers

ISL8483EIP 数据手册

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ISL8483E, ISL8485E  
®
Data Sheet  
December 2003  
FN6048.3  
ESD Protected to ±15kV, 5V, Low Power,  
High Speed or Slew Rate Limited,  
RS-485/RS-422 Trans ceivers  
Features  
• RS-485 I/O Pin ESD Protection . . . . . . . . . . . . . ±15kV HBM  
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM  
• Specified for 10% Tolerance Supplies  
These Intersil RS-485/RS-422 devices are ESD protected,  
BiCMOS 5V powered, single transceivers that meet both the  
RS-485 and RS-422 standards for balanced communication.  
Each driver output/receiver input is protected against ±15kV  
ESD strikes, without latch-up. Unlike competitive devices,  
this Intersil family is specified for 10% tolerance supplies  
(4.5V to 5.5V).  
• High Data Rate Version (ISL8485E) . . . . . . up to 5Mbps  
• Slew Rate Limited Version for Error Free Data  
Transmission (ISL8483E) . . . . . . . . . . . . . .up to 250kbps  
• Single Unit Load Allows up to 32 Devices on the Bus  
• 1nA Low Current Shutdown Mode (ISL8483E)  
The ISL8483E utilizes slew rate limited drivers which reduce  
EMI, and minimize reflections from improperly terminated  
transmission lines, or unterminated stubs in multidrop and  
multipoint applications.  
• Low Quiescent Current:  
- 160µA (ISL8483E)  
- 340µA (ISL8485E)  
• -7V to +12V Common Mode Input Voltage Range  
• Three State Rx and Tx Outputs  
Data rates up to 5Mbps are achievable by using the  
ISL8485E which features higher slew rates.  
Both devices present a “single unit load” to the RS-485 bus,  
which allows up to 32 transceivers on the network.  
• 30ns Propagation Delays, 5ns Skew (ISL8485E)  
• Operate from a Single +5V Supply (10% Tolerance)  
Receiver (Rx) inputs feature a “fail-safe if open” design,  
which ensures a logic high Rx output, if Rx inputs are  
floating.  
• Current Limiting and Thermal Shutdown for driver  
Overload Protection  
Applications  
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.  
• Factory Automation  
• Security Networks  
• Building Environmental Control Systems  
• Industrial/Process Control Networks  
• Level Translators (e.g., RS-232 to RS-422)  
• RS-232 “Extension Cords”  
These half duplex configurations multiplex the Rx inputs and  
Tx outputs to allow transceivers with Rx and Tx disable  
functions in 8 lead packages.  
TABLE 1. SUMMARY OF FEATURES  
HALF/FULL NO. OF DEVICES DATARATE SLEW-RATE RECEIVER/DRIVER QUIESCENT LOW POWER  
PART  
NUMBER  
PIN  
SHUTDOWN? COUNT  
DUPLEX  
ALLOWED ON BUS  
(Mbps)  
0.25  
5
LIMITED?  
ENABLE?  
I
(µA)  
CC  
160  
340  
ISL8483E  
ISL8485E  
Half  
32  
32  
Yes  
Yes  
Yes  
No  
8
8
Half  
No  
Yes  
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 © Intersil Americas Inc. 2003. All R ights Reserved.  
1
All other trademarks mentioned are the property of their respective owners.  

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