参数资料
型号: MAX3140EEI+
厂商: Maxim Integrated Products
文件页数: 21/36页
文件大小: 0K
描述: IC UART W/RS485 28-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
特点: 收发器
FIFO's: 8 字节
规程: RS232,RS485
电源电压: 4.75 V ~ 5.25 V
带IrDA 编码器/解码器:
带故障启动位检测功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 28-QSOP
供应商设备封装: 28-QSOP
包装: 管件
MAX3140
SPI/MICROWIRE-Compatible UART with Integrated
True Fail-Safe RS-485/RS-422 Transceivers
28
______________________________________________________________________________________
120
Ω
120
Ω
DATA IN
DATA OUT
R
D
RO
RE
DE
DI
A
B
Z
Y
MAX3140
(FULL DUPLEX)
Figure 20. Line Repeater in Full-Duplex Mode
5
μs/div
VA - VB
DI
RO
1V/div
5V/div
Figure 21. System Differential Voltage at 50kHz Driving 4000
Feet of Cable with SRL = Unconnected
2
μs/div
VA - VB
DI
RO
1V/div
5V/div
Figure 22. System Differential Voltage at 100kHz Driving 4000
Feet of Cable with SRL = VCC
1
μs/div
VA - VB
DI
RO
1V/div
5V/div
Figure 23. System Differential Voltage at 200kHz Driving 4000
Feet of Cable with SRL = GND
Typical Applications
The MAX3140 is designed for bidirectional data com-
munications on multipoint bus transmission lines. The
RS-485 transceiver can be used in any RS-485 applica-
tion due to its numerous features and its programmabili-
ty. A typical half-duplex circuit for the MAX3140 is
shown in Figure 24, and a corresponding half-duplex
network is shown in Figure 25. A typical full-duplex cir-
cuit for the MAX3140 is shown in Figure 26, and a corre-
sponding full-duplex network is shown in Figure 27.
Since the MAX3140’s internal UART has IrDA capability,
a standard IR transceiver (e.g., the MAX3120) can be
used to provide IrDA communication (Figure 28).
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相关代理商/技术参数
参数描述
MAX3140EEI+ 功能描述:UART 接口集成电路 SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
MAX3140EEI+T 功能描述:UART 接口集成电路 SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
MAX3140EEI-T 功能描述:UART 接口集成电路 RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
MAX3147NC SPL 制造商:Toshiba America Electronic Components 功能描述:NORTEL HDD - Bulk
MAX314C/D 功能描述:模拟开关 IC 10Ohm Quad SPST CMOS Analog Switches RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻(最大值):0.1 Ohms 切换电压(最大): 开启时间(最大值): 关闭时间(最大值): 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16