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ISL41387IRZ PDF预览

ISL41387IRZ

更新时间: 2024-11-20 04:22:51
品牌 Logo 应用领域
英特矽尔 - INTERSIL 驱动器接口集成电路信息通信管理
页数 文件大小 规格书
27页 999K
描述
【15kV ESD Protected, 5V, Dual Protocol (RS-232/RS-485) Transceivers

ISL41387IRZ 数据手册

 浏览型号ISL41387IRZ的Datasheet PDF文件第2页浏览型号ISL41387IRZ的Datasheet PDF文件第3页浏览型号ISL41387IRZ的Datasheet PDF文件第4页浏览型号ISL41387IRZ的Datasheet PDF文件第5页浏览型号ISL41387IRZ的Datasheet PDF文件第6页浏览型号ISL41387IRZ的Datasheet PDF文件第7页 
ISL81387, ISL41387  
®
Data Sheet  
November 21, 2007  
FN6201.3  
±15kV ESD Protected, 5V, Dual Protocol  
Features  
(RS-232/RS-485) Transceivers  
• 5V Powered, User Selectable RS-232 or RS-485, RS-422  
Interface Port (Two RS-232 Transceivers or One RS-485,  
RS-422 Transceiver)  
These devices are BiCMOS interface ICs that are user  
configured as either a single RS-422, RS-485 differential  
transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver.  
• ±15kV (HBM) ESD Protected Bus Pins (RS-232 or  
RS-485)  
In RS-232 mode, the on-board charge pump generates  
RS-232 compliant ±5V Tx output levels, from a supply as low  
as 4.5V. Four small 0.1µF capacitors are required for the  
charge pump. The transceivers are RS-232 compliant, with  
the Rx inputs handling up to ±25V, and the Tx outputs  
handling ±12V.  
• Flow-Through Pinouts Simplify Board Layouts  
• Pb-Free (RoHS Compliant)  
• Large (2.7V) Differential V  
OUT  
for Improved Noise  
Immunity in RS-485, RS-422 Networks  
• Full Failsafe (Open/Short) Rx in RS-485, RS-422 Mode  
• Loopback Mode Facilitates Board Self Test Functions  
In RS-485 mode, the transceivers support both the RS-485  
and RS-422 differential communication standards. The  
RS-485 receiver features "full failsafe" operation, so the Rx  
output remains in a high state if the inputs are open or  
shorted together. The RS-485 transmitter supports up to  
three data rates, two of which are slew rate limited for  
problem free communications. The charge pump disables in  
RS-485 mode, thereby saving power, minimizing noise, and  
eliminating the charge pump capacitors.  
• User Selectable RS-485 Data Rates . . . . . . . . . . 20Mbps  
- Slew Rate Limited. . . . . . . . . . . . . . . . . . . . . . . 460kbps  
- Slew Rate Limited (ISL41387 Only) . . . . . . . . . 115kbps  
• Fast RS-232 Data Rate . . . . . . . . . . . . . . . Up to 650kbps  
• Low Current Shutdown Mode. . . . . . . . . . . . . . . . . . .35µA  
• QFN Package Saves Board Space (ISL41387 Only)  
Both RS-232, RS-485 modes feature loopback and  
shutdown functions. The loopback mode internally connects  
the Tx outputs to the corresponding Rx input, which  
facilitates the implementation of board level self test  
functions. The outputs remain connected to the loads during  
loopback, so connection problems (e.g., shorted connectors  
or cables) can be detected. The shutdown mode disables  
the Tx and Rx outputs, disables the charge pump if in  
RS-232 mode, and places the IC in a low current (20µA)  
mode.  
• Logic Supply Pin (V ) Eases Operation in Mixed Supply  
L
Systems (ISL41387 Only)  
Applications  
• Gaming Applications (e.g., Slot machines)  
• Single Board Computers  
• Factory Automation  
• Security Networks  
The ISL41387 is a QFN packaged device that offers  
additional functionality, including a lower speed and edge  
rate option (115kbps) for EMI sensitive designs, or to allow  
longer bus lengths. It also features a logic supply voltage pin  
• Industrial/Process Control Networks  
• Level Translators (e.g., RS-232 to RS-422)  
• Point of Sale Equipment  
(V ) that sets the V  
level of logic outputs, and the  
L
OH  
switching points of logic inputs, to be compatible with  
another supply voltage in mixed voltage systems. The QFN's  
choice of active high or low Rx enable pins increases design  
flexibility, allowing Tx/Rx direction control via a single signal  
by connecting DEN and RXEN together.  
For a dual port version of these devices, please see the  
ISL81334, ISL41334 data sheet.  
TABLE 1. SUMMARY OF FEATURES  
PART  
NUMBER  
NO. OF  
PORTS  
RS-485 DATA  
RATE (bps)  
RS-232 DATA  
RATE (kbps)  
ACTIVE H or L  
Rx ENABLE?  
LOW POWER  
SHUTDOWN?  
PACKAGE OPTIONS  
V PIN?  
L
ISL81387  
ISL41387  
1
1
20 Ld SOIC, 20 Ld SSOP  
20M, 460k  
650  
650  
NO  
H
YES  
YES  
40 Ld QFN (6mmx6mm) 20M, 460k, 115k  
YES  
BOTH  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2005, 2007. All Rights Reserved.  
1
All other trademarks mentioned are the property of their respective owners.  

ISL41387IRZ 替代型号

型号 品牌 替代类型 描述 数据表
ISL41387IRZ-T INTERSIL

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