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DS1485TN

更新时间： 2024-11-12 20:12:55
品牌 Logo 应用领域
美国国家半导体 - NSC 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
8页 201K
描述
IC LINE TRANSCEIVER, PDIP8, 0.300 INCH, PLASTIC, DIP-8, Line Driver or Receiver

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DS1485TN 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：DIP, DIP8,.3Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.91差分输出：YES
驱动器位数：1高电平输入电流最大值：0.000001 A
输入特性：DIFFERENTIAL SCHMITT TRIGGER接口集成电路类型：LINE TRANSCEIVER
接口标准：EIA-422; EIA-485JESD-30 代码：R-PDIP-T8
JESD-609代码：e0长度：9.817 mm
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
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：DIP
封装等效代码：DIP8,.3封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：5 V认证状态：Not Qualified
最大接收延迟：12 ns接收器位数：1
座面最大高度：5.08 mm子类别：Line Driver or Receivers
最大压摆率：5 mA最大供电电压：5.5 V
最小供电电压：4.5 V标称供电电压：5 V
表面贴装：NO技术：CMOS
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：THROUGH-HOLE端子节距：2.54 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：10 ns宽度：7.62 mm
Base Number Matches：1

DS1485TN 数据手册

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September 1997  
DS1485  
High-Speed RS-485/RS-422 Multipoint Transceiver  
General Description  
Features  
n Meets TIA/EIA RS-485 Multipoint Standard  
n Supports 40 Mbps operation  
n Guaranteed Full Load Output Voltage (V  
The DS1485 is a high-speed low power transceiver for RS-  
485 and RS-422 communication. The device contains one  
driver and one receiver. The driver’s output transition time  
supports operation up to 40 Mbps while minimizing power  
consumption.  
)
OD3  
n Low Quiesent Current 5mA typ  
n −7V to +12V Common−Mode Input Voltage Range  
n TRI-STATE Outputs on Driver and Receiver  
n AC Performance:  
The transceiver draws 5mA of supply current when unloaded  
or fully loaded with the driver disabled and operates from a  
single +5V supply.  
− Driver Transition Time 3ns typ  
The driver is short-circuited current limited and is protected  
against excessive power dissipation by thermal shutdown  
circuitry that places the driver outputs into TRI-STATE®  
(High Impedance state) under faut conditions. The driver  
guarantees a minimum of 1.5V differential output voltage  
with maximum loading across the common mode range  
(VOD3).  
− Driver Propagation Delay 7ns typ  
− Driver Skew 0.2ns typ  
− Receiver Propagation Delay 3ns typ  
− Receiver Skew 0.3ns typ  
n Half−Duplex Flow Through Pinout  
n Operates from a single 5V supply  
n Allows up to 32 Transceivers on the Bus  
n Current−Limiting and Thermal Shutdown for Driver  
Overload Protection  
n Industrial temperature range: −40˚C to +85˚C  
10kV ESD (human body model) Protection on Bus  
Pins  
The receiver incorporates a fail safe circuit which guarantees  
a logic high output state when the inputs are left open. (Note  
1)  
The DS1485 is available in surface mount and DIP packages  
and is characterized for Industrial (−40˚C to +85˚C) and  
Commercial temperature range operation.  
±
n
n Pin and Functional Compatibility with ADM1485,  
MAX485, LTC1485, SN75LBC176 and SN75ALS176B  
Connection and Logic Diagram  
Truth Table  
DRIVER SECTION  
*
*
RE*  
X
DE  
H
DI  
H
L
DO/RI  
DO /RI  
H
L
L
H
Z
X
H
X
L
X
Z
RECEIVER SECTION  
*
RE*  
L
DE  
L
RI−RI  
RO  
H
DS100079-1  
≥ +0.2V  
≤ −0.2V  
X
Order Number DS1485TM, DS1485TN,  
DS1485M, DS1485N  
See NS Package Number M08A or N08E  
L
L
L
H
L
Z
L
L
OPEN (Note 1)  
H
Note 1: Non-terminated, open input only  
TRI-STATE® is a registered trademark of National Semiconductor Corporation.  
© 1999 National Semiconductor Corporation  
DS100079  
www.national.com  
Powered by ICminer.com Electronic-Library Service CopyRight 2003  
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