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LMS1487ECMX/NOPB PDF预览

LMS1487ECMX/NOPB

更新时间： 2024-09-17 14:52:43
品牌 Logo 应用领域
德州仪器 - TI 驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
13页 249K
描述
LINE TRANSCEIVER, PDSO8

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中文翻译

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LMS1487ECMX/NOPB 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：SOP, SOP8,.25Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.23差分输出：YES
驱动器位数：1输入特性：SCHMITT TRIGGER
接口集成电路类型：LINE TRANSCEIVER接口标准：EIA-422-B; TIA-422-B; EIA-485-A; TIA-485-A; V.11; X.27
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.902 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：70 °C最低工作温度：
最小输出摆幅：1.5 V最大输出低电流：0.004 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
最大接收延迟：200 ns接收器位数：1
座面最大高度：1.753 mm子类别：Line Driver or Receivers
最大压摆率：0.66 mA最大供电电压：5.25 V
最小供电电压：4.75 V标称供电电压：5 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED最大传输延迟：80 ns
宽度：3.899 mmBase Number Matches：1

LMS1487ECMX/NOPB 数据手册

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November 2003  
LMS1487E  
Low Power RS-485 / RS-422 Differential Bus Transceiver  
General Description  
Features  
n Meet ANSI standard RS-485 and RS-422  
n Data rate 2.5 Mbps  
The LMS1487E is a low power differential bus/line trans-  
ceiver designed for high speed bidirectional data communi-  
cation 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  
n Single supply voltage operation, 5V  
n Wide input and output voltage range  
n Thermal shutdown protection  
n Short circuit protection  
n Low quiescent current 660µA (max)  
n Allows up to 128 transceivers on the bus  
n Open circuit fail-safe for receiver  
n Extended operating temperature range −40˚C to 85˚C  
n Drop-in replacement to MAX1487E  
n Available in 8-pin SOIC and 8-pin DIP packages  
™
TRI-STATE differential line driver and differential input re-  
ceiver, 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 re-  
ceiver 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 com-  
mon 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 pack-  
ages. It is a drop-in replacement to Maxim’s MAX1487E.  
Applications  
n Low power RS-485 systems  
n Network hubs, bridges, and routers  
n Point of sales equipment (ATM, barcode scanners,…)  
n Local area networks (LAN)  
n Integrated service digital network (ISDN)  
n Industrial programmable logic controllers  
n High speed parallel and serial applications  
n Multipoint applications with noisy environment  
Typical Application  
20085601  
A typical multipoint application is shown in the above figure. Terminating resistor, RT are typically required but only located at the two ends of the cable.  
Pull-up and pull-down resistors maybe required at the end of the bus to provide fail-safe biasing. The biasing resistors provide a bias to the cable when all  
drivers are in TRI-STATE, See National Application Note, AN-847 for further information.  
© 2003 National Semiconductor Corporation  
DS200856  
www.national.com  
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LMS1487ECMX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LMS1487EIM/NOPB TI

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DS481TM/NOPB NSC

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 IC LINE TRANSCEIVER, PDSO8, PLASTIC, SOP-8, Line Driver or Receiver
LMS1487ECM/NOPB TI

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 LINE TRANSCEIVER, PDSO8, SOIC-8

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