ALTERA

http://www.altera.com/

AMD

http://www.amd.com/

DALLAS SEMIC.

http://www.dalsemi.com/

NATIONAL SEMICONDUCTORES

http://www.nsc.com/

TEXAS INSTRUMENTS

http://www.ti.com/

HITACHI

http://www.hitachi.com/

INTEL

 http://www.intel.com/

MOTOROLA

http://motorola.com/

BURR BROWN

 http://www.burr-brown.com/

MICROLINEAR

http://www.microlinear.com/

HEWLETT PACKARD

http://www.hp.com/

AMI

http://www.amis.com/

NATIONAL INSTRUMENTS

http://www.ni.com/

XILINX

http://www.xilinx.com/

MAXIM

http://www.maxim-ic.com/

FAIRCHILD

http://www.fairchildsemi.com/

MICROCHIP

http://www.microchip.com/

ANALOG DEVICES

http://www.analog.com

LINEAR TECHNOLOGY

http://www.linear-tech.com

ATMEL

 http://www.atmel.com

PHILIPS

http://www.philips.com

FOX

http://www.fox.com

MICREL

http://www.micrel.com

ACTEL

http://www.actel.com

ON SEMI (ex Motorola)

http://www.on-semi.com