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MAX3469CSA+

产品描述RS-422/RS-485 Interface IC 5V Fail-Safe 40Mbps Profibus Tcvr
产品类别模拟混合信号IC    驱动程序和接口   
文件大小202KB,共13页
制造商Maxim(美信半导体)
官网地址https://www.maximintegrated.com/en.html
标准
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MAX3469CSA+概述

RS-422/RS-485 Interface IC 5V Fail-Safe 40Mbps Profibus Tcvr

MAX3469CSA+规格参数

参数名称属性值
是否无铅不含铅
是否Rohs认证符合
厂商名称Maxim(美信半导体)
零件包装代码SOIC
包装说明SOP, SOP8,.25
针数8
Reach Compliance Codecompliant
ECCN代码EAR99
Factory Lead Time6 weeks
差分输出YES
驱动器位数1
输入特性DIFFERENTIAL
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-G8
JESD-609代码e3
长度4.9 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2.1 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20 ns
接收器位数1
座面最大高度1.75 mm
最大压摆率4 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
技术BICMOS
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15 ns
宽度3.9 mm

文档预览

下载PDF文档
19-3038; Rev 3; 5/12
+5V, Fail-Safe, 40Mbps, Profibus RS-485/
RS-422 Transceivers
General Description
The MAX3465–MAX3469 are high-speed differential
bus transceivers for RS-485 and RS-422 communica-
tions. They are designed to meet TIA/EIA-422-B,
TIA/EIA-485-A, V.11, and X.27 standards. The trans-
ceiver complies with the Profibus specification provid-
ing +2.1V minimum output level with a 54Ω load,
40Mbps data rate, and output skew less than 2ns. Each
part contains one three-state differential line driver and
one differential input line receiver. The devices operate
from a +5V supply and feature true fail-safe circuitry,
which guarantees a logic-high receiver output when the
receiver inputs are open or shorted. This enables all
receiver outputs on a terminated bus to output logic
highs when all transmitters are disabled.
All devices feature a 1/4-standard-unit load receiver
input impedance that allows 128 transceivers on the
bus. Driver and receiver propagation delays are guar-
anteed under 20ns for multidrop, clock distribution
applications. Drivers are short-circuit current limited
and are protected against excessive power dissipation
by thermal-shutdown circuitry. The driver and receiver
feature active-high and active-low enables, respective-
ly, that can be connected together externally to serve
as a direction control.
Up to 40Mbps Data Rate
15ns Transmitter Propagation Delay
20ns Receiver Propagation Delay
2ns Transmitter and Receiver Skew
High Differential Driver Output Level (2.1V on 54Ω)
Hot-Swap Versions
1µA Shutdown Supply Current
Low Supply Current Requirements (2.5mA, typ)
Allow Up to 128 Transceivers on the Bus
True Fail-Safe Receiver while Maintaining EIA/TIA-
485 Compatibility
Designed for Multipoint Transmissions on Long
or Noisy Bus Lines
Full-Duplex and Half-Duplex Versions Available
Phase Controls to Correct for Twisted-Pair
Reversal for 14-Pin Versions
Current-Limiting and Thermal Shutdown for
Driver Overload Protection
Features
Recommended for Profibus Applications
MAX3465–MAX3469
Ordering Information
Applications
High-Speed RS-485 Communications
High-Speed RS-422 Communications
Level Translators
Industrial-Control Local Area Networks
Profibus Applications
PART
MAX3465CSD
MAX3465CPD
MAX3465ESD
MAX3465EPD
TEMP RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
Ordering Information continued at end of data sheet.
Devices are also available in a lead(Pb)-free/RoHS-compliant
package. Specify lead-free by adding “+” to the part number
when ordering.
Pin Configurations appear at end of data sheet.
Selector Guide
PART
NUMBER
MAX3465
MAX3466
MAX3467
MAX3468
MAX3469
HALF/FULL
DUPLEX
Full
Full
Full
Half
Half
RECEIVER/
DRIVER
ENABLE
Yes
Yes
No
Yes
Yes
LOW-
POWER
SHUTDOWN
Yes
Yes
No
Yes
Yes
HOT SWAP
Yes
No
No
Yes
No
RECEIVER/
DRIVER PHASE
SELECT
Yes
Yes
No
No
No
INDEPENDENT
SHDN PIN
Yes
Yes
No
No
No
PIN COUNT
14
14
8
8
8
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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