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SP213ECA 参数 Datasheet PDF下载

SP213ECA图片预览
型号: SP213ECA
PDF下载: 下载PDF文件 查看货源
内容描述: + 5V高性能RS232收发器 [+5V High Performance RS232 Transceivers]
分类和应用: 线路驱动器或接收器驱动程序和接口接口集成电路光电二极管
文件页数/大小: 16 页 / 163 K
品牌: SIPEX [ SIPEX CORPORATION ]
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V
= +5V  
CC  
C
+5V  
4
+
+
V
V
Storage Capacitor  
Storage Capacitor  
DD  
+
+
C
C
2
1
SS  
C
–5V  
–5V  
3
Figure 4. Charge Pump — Phase 3  
V
= +5V  
CC  
C
+10V  
4
+
V
V
Storage Capacitor  
Storage Capacitor  
DD  
SS  
+
+
C
C
2
1
+
3
C
Figure 5. Charge Pump — Phase 4  
Receivers  
For complete shutdown to occur and the 10µA  
power drain to be realized, the following  
conditions must be met:  
The receivers convert RS-232 input signals to  
inverted TTL signals. Since the input is usually  
fromatransmissionlinewherelongcablelengths  
and system interference can degrade the signal,  
the inputs have a typical hysteresis margin of  
500mV. This ensures that the receiver is virtu-  
ally immune to noisy transmission lines. Should  
an input be left unconnected, a 5kpulldown  
resistor to ground will commit the output of the  
receiver to a high state.  
SP211E:  
• +5V must be applied to the SD pin  
• ENABLE must be either 0V, +5.0V or not  
connected  
• the transmitter inputs must be either +5.0V  
or not connected  
• VCC must be +5V  
• Receiver inputs must be >0V and <+5V  
SHUTDOWN MODE  
The SP211E, and SP213E all feature a control  
input which will disable the device and reduce  
the power supply current to less than 10µA,  
making the parts ideal for battery–powered  
systems. In the “shutdown” mode the receivers  
and transmitters will both be tri–stated. The V+  
output of the charge pump will discharge to VCC,  
and the Voutput will discharge to ground.  
Products with the Wake-Up function can enable  
or disable the receivers during shutdown.  
SP213E:  
• 0V must be applied to the SD pin  
• ENABLE must be either 0V, +5.0V or not  
connected  
• the transmitter inputs must be either +5.0V  
or not connected  
• VCC must be +5V  
• Receiver inputs must be >0V and <+5V  
SP207EDS/09  
SP207E Series High Performance Transceivers  
© Copyright 2000 Sipex Corporation  
7
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