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| Click on the first letter of the IC manufacturer you're looking for: | ||||||||||||||||||||||||||
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| 0..9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 
 Ubicom
Ubicom
| www.ubicom.com/ | 
 UMC
UMC
| www.umc.com/ | main | 
| www.umc.com.tw/ | old, jumps to the other site | 
 Unitrode
Unitrode
| www.unitrode.com/ | 
| www.el.utwente.nl/mesa/ | Micro Electronics, Materials- and Molecular Engineering, and Sensors and Actuators | 
 USAR
USAR
| www.semtech.com/ | new site | 
| www.usar.com/ | old site | 
 US Digital
US Digital
| support@usdigital.com | 
| sales@usdigital.com | 
| webmaster@usdigital.com | 
| www.usdigital.com/ | General | 
| www.usdigital.com/products/ | Data sheets | 
| HEDS-9x00-x00 | Optical incremental encoder module | 
| LS6511 | PIR Motion Detector | 
| LS7083 | Quadrature encoder to counter interface chip | 
| LS7084 | Quadrature encoder to counter interface chip | 
| LS7166 | Quadrature encoder to microprocessor interface chip | 
| LS7210 | Programmable Digital Delay Timer | 
| LS7211 | Programmable Digital Delay Timers | 
| LS7212 | Programmable Digital Delay Timers | 
| LS7213 | Programmable Digital Delay Timer | 
| LS7232 | Touch Control Lamp Dimmer | 
| LS7262 | Brushless DC Motor Commutator/Controller | 
| LS7266R1 | Dual quadrature encoder with index to microprocessor interface chip | 
| LS7560 | Brushless DC Motor Controller | 
| LS7631 | Touch Control Halogen Lamp Dimmers | 
| LS7632 | Touch Control Halogen Lamp Dimmers | 
| RDD104 | Selectable 4 Decade CMOS Divider | 
| RED3600 | Complementary MOS (CMOS) Divider | 
| www.ultratechnology.com/ | site | 
| local | mailing list | 
 UTMC
UTMC
| www.utron.com.tw/ | 
| local | ASIC designers | 
| www.crhc.uiuc.edu/~dburke/databookshelf.html | Dan Burke's links to IC manufacturers' data sheets | 
| www.boin-gmbh.com/linkpage/indicm.htm | BOIN's Semiconductor Linkpage | 
| www.datasheetlocator.com/ | Datasheet Locator by NetComponents | 
| www.bgs.nu/sdw/ | Semiconductor datasheets on the Web | 
| www.edtmag.com/ | Electronic Distribution Today | 
| www.eenet.com/semi/man.htm | EENet Semiconductor Manuf's WWW sites | 
| www.semiresources.com | List of many semiconductor manufacturers' home pages | 
| www.stengel.net/ic.htm | Another list (from 1998) | 
| pw1.netcom.com/~dwsmith/list_numbers.html | Dana's index | 
| Click on the first letter of the IC manufacturer you're looking for: | ||||||||||||||||||||||||||
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| 0..9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 
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