Hi Vinod,

PCD8544 reminded me of NOKIA 3310 cell phone LCD's. Are you refering to NOKIA 3310 lcd when you said PCF8544. This issue has been discussed earlier try using the search button on left. One advice, you never know how long you will get these NOKIA LCD's better use some standard LCD such as 64X64 or 64X128 etc.

Regards,
Prahlad Purohit