want a ckt for interfacing decimal keyboard to 8051

[vichu]

hi ineed a ckt which can interface a decimal key board with 8051
microcontroller

 

[Ken Smith]

hi ineed a ckt which can interface a decimal key board with 8051
microcontroller

It has diodes in it.

What do you mean by "decimal key board"? If you were more specific others
might be too.