At 02:29 PM 8/24/1999 -0300, you wrote: > >Hi all, >I am trying to do a Keypad Encoder with PIC 16F84-04 >Has Somebody idea of as to do using a 4 x 3 Matrix Keypad direct with the >PIC and Contact Debouncing? Sure. Have a look at our EDE1144 IC. A datasheet is at http://www.elabinc.com/chips.htm Includes key debouncing & auto-repeat, with serial/parallel outputs. Works with 4x4 or smaller keypad. Best regards, Ê Todd Peterson Ê E-Lab Digital Engineering, Inc. Ê (816) 257-9954 Ê Embedded Control & Integrated Circuit Solutions... http://www.elabinc.com