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参数资料
| 型号： | MAX481CUA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485/RS422 5V 8-MSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422，RS485 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 带卷 (TR) |
Line Length vs. Data Rate
The RS-485/RS-422 standard covers line lengths up to
4000 feet. For line lengths greater than 4000 feet, see
Figure 23.
Figures 19 and 20 show the system differential voltage
for the parts driving 4000 feet of 26AWG twisted-pair
wire at 110kHz into 120
Ω loads.
Typical Applications
The MAX481, MAX483, MAX485, MAX487–MAX491, and
MAX1487 transceivers are designed for bidirectional data
communications on multipoint bus transmission lines.
Figures 21 and 22 show typical network applications
circuits. These parts can also be used as line
repeaters, with cable lengths longer than 4000 feet, as
shown in Figure 23.
To minimize reflections, the line should be terminated at
both ends in its characteristic impedance, and stub
lengths off the main line should be kept as short as possi-
ble. The slew-rate-limited MAX483 and MAX487–MAX489
are more tolerant of imperfect termination.
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
DI
VY-VZ
RO
5V
0V
1V
0V
-1V
5V
0V
2
μs/div
DI
VY-VZ
RO
5V
0V
1V
0V
-1V
5V
0V
2
μs/div
DI
RO
DE
RE
A
B
RE
RO
DI
DE
D
R
BB
B
A
120
Ω
120
Ω
D
R
MAX481
MAX483
MAX485
MAX487
MAX1487
Figure 19. MAX481/MAX485/MAX490/MAX491/MAX1487 System
Differential Voltage at 110kHz Driving 4000ft of Cable
Figure 20. MAX483, MAX487–MAX489 System Differential
Voltage at 110kHz Driving 4000ft of Cable
Figure 21. MAX481/MAX483/MAX485/MAX487/MAX1487 Typical Half-Duplex RS-485 Network
MAX481/MAX483/MAX485
MAX487–MAX491/MAX1487
Maxim Integrated
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX481ECPA | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX481ECPA+ | 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX481ECSA | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX481ECSA+ | 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX481ECSA+T | 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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