>:-) you surely know that a pic need an high voltage on Vpp to read out data... > if is applied on the wrong pin... kabooom! :-) On eeproms, Vpp No kaboom - the chip has diodes on the pins. Try it, Alex. That's how I learned this! Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================