My name is Rich and I’m a Freescale developer in my spare time. If you’re anything like me, you probably got really excited the first time you heard about a computer on a chip.

The HEF4028B is a 4-bit BCD to decimal decoder, a 4-bit BCO to octal decoder.

Dr.Heinz Schmidt-Walter made life easy for many switching power supply designers, by making available on his web site a procedure to compute parameters of the most important switching power supplies.

Every thing you need (schematics, libraries, pcb) to built a USB to RS232 converter is available on SparkFun web site.