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  Topic: use PIC18F4550 USB DEMO amend application routine
bavrpic

Replies: 0
Views: 10376

PostForum: Electronic Resources   Posted: Sat May 03, 2008 8:48 pm   Subject: use PIC18F4550 USB DEMO amend application routine
/**********************USB data manage*****************/
void ProcessIO(void)
{
//BlinkUSBStatus();
// User Application USB tasks
if((usb_device_state < CONFIGURED_STATE)||(UCON ...
  Topic: Interfacing TTL to CMOS with unequal supplies
bavrpic

Replies: 2
Views: 16997

PostForum: Electronic Resources   Posted: Fri Apr 25, 2008 9:47 pm   Subject: Interfacing TTL to CMOS with unequal supplies
http://www.dzsc.com/data/uploadfile/2008426113623925.jpg

This circuit shows how to interface TTL to CMOS with unequal supply voltages. ([url=http://www.chinaicmart.com/suppliers/255/2N2222.html]2N2 ...
 
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