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參數(shù)資料
| 型號： | MAX3140 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | SPI/MICROWIRE-Compatible UART with Integrated True Fail-Safe RS-485/RS-422 Transceivers |
| 中文描述： | SPI/MICROWIRE兼容的UART，集成真正失效保護(hù)的RS-485/RS-422收發(fā)器 |
| 文件頁數(shù)： | 28/36頁 |
| 文件大?。?/td> | 468K |
| 代理商： | MAX3140 |
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M
SPI/MICROWIRE-Compatible UART with Integrated
True Fail-Safe RS-485/RS-422 Transceivers
28
______________________________________________________________________________________
120
120
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
μ
s/div
V
A
- V
B
DI
RO
1V/div
5V/div
5V/div
Figure 21. System Differential Voltage at 50kHz Driving 4000
Feet of Cable with SRL = Unconnected
5
μ
s/div
V
A
- V
B
DI
RO
1V/div
5V/div
5V/div
Figure 22. System Differential Voltage at 100kHz Driving 4000
Feet of Cable with SRL = V
CC
2
μ
s/div
V
A
- V
B
DI
RO
1V/div
5V/div
5V/div
Figure 23. System Differential Voltage at 200kHz Driving 4000
Feet of Cable with SRL = GND
T ypic al Applic ations
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3140CEI | 功能描述:UART 接口集成電路 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| MAX3140CEI+ | 功能描述:UART 接口集成電路 SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| MAX3140CEI+T | 功能描述:UART 接口集成電路 SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| MAX3140CEI-T | 功能描述:UART 接口集成電路 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| MAX3140EEI | 功能描述:UART 接口集成電路 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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