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Help me connect 89c51 with 4x3 keypad/ 16x2 LCD/ DTMF encoder/ EPROM

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syed intisar haider

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can nay one give the full pin descrption of folowong components with the 89c51

1. keypad (4x3)
2. LCD(16x2)
3. DTMF encoder(8088)
4. parallel EPROM

plz help me how rto connect them with the 89c51

take care all
have a nice day
regards
haider
 

Re: scemetics

Go to:
**broken link removed**
It is 8051-base single board computer with a lot of peripherials including EPROM, LCD display, ......
Regards,
IanP
 

Re: scemetics

Principale schema of keyboard 4*3
and pinout of LDC.
(Next 2 pins 15-16 are defined for LED light)
 

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