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AN782

Title:
TC7660 Powers RS232 Data Loop (TC7660, TC7660H, TC7660S)
Name:
AN782
Date:
11/12/2002
Author:
Wes Freeman
Description:
For reliable operation the optoisolator should be biased to saturation, so: IOPTO = + = 2k The introduction of single-voltage EPROMS and dynamic RAMs has permitted designers to produce complete digital systems powered by a single 5V supply. One area which has not yielded to single-supply operation, however, is the RS-232 interface. If a system must communicate with an RS-232 serial device, such as a printer or another computer, a separate power supply is required.
Keywords:
TC7660, RS-232, Data Loop, Low Cost Adapter, AN8
 
Application Notes & Source Code
 Last Updated
Size
 
  AN782
  03/14/2004
  181KB
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