Identificación de Fabricantes de Circuitos Integrados
Para localizar hojas de datos (datasheet) de un circuito integrado en Internet o en manuales, puede ser de gran utilidad conocer el fabricante del mismo. Esta lista, indica los posibles fabricantes de circuitos integrados por medio de los primeros caracteres (prefijo) de la identificación del componente. Si bien no esta completa y puede contener errores, pues algunas identificaciones son usadas por diversos fabricantes, y además de que, constantemente surgen nuevos integrados con nuevos códigos; esta lista puede ser de mucha utilidad, como una referencia a la hora de tratar de identificar el origen del componente y/o localizar sus datos.
Se tratará, en la medida de lo posible, de mantener actualizada esta lista, y corregir los posibles errores o cambios en los datos y enlaces.
| Letras o Numeros | Nombre Fabricante | Página Web | 
| 13 - xxxx | Sears | |
| 221-xxxx | Zenith | www.zenith.com | 
| 37-xxxx | Atari | |
| 442-xxxx | Zenith | www.zenith.com | 
| 51 xxxx | Quasar | |
| 56A xxxx | Admiral | |
| 612 XX xxxx | Magnavox | www.magnavox.com | 
| 905 xxxx | Zenith | www.zenith.com | 
| AD xxxx | Analog Devices | www.analog.com | 
| AM xxxx | Advanced Micro. Devices (AMD) | www.amd.com | 
| AM xxxx | Datel Systems | www.datel.com | 
| AN xxxx | Matsushita | www.maco.panasonic.co.jp | 
| AY xxxx | General Instrumens | www.gi.com | 
| BA xxxx | Rohm | www.rohm.com | 
| CA xxxx | RCA (Harris Semiconductors) | www.semi.harris.com | 
| CS xxxx | Cherry Semiconductors | www.cherrysemiconductor.com | 
| CXA xxxx | Sony | www.sel.sony.com/semi | 
| CXD xxxx | Sony | www.sel.sony.com/semi | 
| DBL xxxx | Daewoo | www.daewoosemicon.co.kr | 
| DM xxxx | Delco | www.delco.com | 
| EA xxxx | Electronics Arrays | |
| ECG xxxx | PHILIPS - Silvanya | www.ecgproducts.com | 
| EF xxxx | SGS-Thomson | www.st.com | 
| EFB xxxx | SGS-Thomson | www.st.com | 
| GE xxxx | General Electric | www.ge.com | 
| GL xxxx | GoldStar | lge.expo.co.kr/lge | 
| H xxxx | Harris | ww.semi.harris.com | 
| H xxxx | Hughes Aircraft | |
| HA xxxx | Hitachi | www.halsp.hitachi.com | 
| HD xxxx | Hitachi | www.halsp.hitachi.com | 
| IC xxxx | Philco | |
| ICL xxxx | Intersil | www.intersil.com | 
| IR xxxx | International Rectifier | www.irf.com | 
| IX xxxx | Sharp | www.sharpmeg.com | 
| KA xxxx | Samsung | www.sec.samsung.com | 
| KDA xxxx | Samsung | www.sec.samsung.com | 
| KIA xxxx | KEC - Korea Electronics Co. | www.kec.co.kr www.keccorp.com | 
| KM xxxx | Samsung | www.sec.samsung.com | 
| KS xxxx | Samsung | www.sec.samsung.com | 
| KT xxxx | KEC - Korea Electronics Co. | www.kec.co.kr www.keccorp.com | 
| LA xxxx | Sanyo | www.semic.sanyo.co.jp | 
| LB xxxx | Sanyo | www.semic.sanyo.co.jp | 
| LC xxxx | Sanyo | www.semic.sanyo.co.jp | 
| Lm A xxxx | Lambda | www.lambdaaa.com | 
| LM xxxx | Intersil | www.intersil.com | 
| LM xxxx | National Semiconductor | www.national.com | 
| LM xxxx | Raytheon Semiconductors | www.raytheonsemi.com | 
| LM xxxx | Signetics (Philips) | www.semiconductors.com | 
| LM xxxx | Siliconix | www.siliconix.com | 
| LS xxxx | SGS-Thomson | www.st.com | 
| M xxxx | Mitsubishi | www.coris.com | 
| MA xxxx | Fairchild | www.fairchildsemi.com | 
| MA xxxx | Motorola | sps.motorola.com | 
| MB xxxx | Fujitsu | www.fujielectric.co.jp | 
| MC xxxx | Motorola | sps.motorola.com | 
| MK xxxx | Mostek | |
| ML xxxx | Mitel Semiconductors | www.mitelsemi.com | 
| MMI xxxx | Monolityc Memories | |
| MN xxxx | Micro Network | www.mnc.com | 
| MP xxxx | Micro Power Systems | |
| MPS xxxx | MOS-Technology | |
| MSM xxxx | OKI | www.okisemi.com | 
| NC xxxx | Nitron | |
| NJM xxx | New Japan Radio Co., Ltd. | www.njr.com | 
| NJU xxx | New Japan Radio Co., Ltd. | www.njr.com | 
| NTE xxxx | NTE | www.nteinc.com | 
| PA xxxx | Pioneer | www.pioneer.co.jp | 
| PM xxxx | Precision Monolithic | www.analog.com | 
| PTC xxx | Malloty | www.nacc-mallory.com | 
| R xxxx | Rockwell | www.nb.rockwell.com | 
| RC xxxx | Raytheon Semiconductors | www.raytheonsemi.com | 
| RH-IXxxxx | Sharp | www.sharpmeg.com | 
| RM xxxx | Raytheon Semiconductors | www.raytheonsemi.com | 
| S xxxx | American Microsystems (AMI) | www.amis.com | 
| SAA xxxx | Philips | www.semiconductors.com | 
| SAA xxxx | ITT | www.itt-sc.de | 
| SE xxxx | Signetics (Phipips) | www.semiconductors.com | 
| SG xxxx | Silicon General | www.microsemi.com | 
| SK xxxx | Thomson | www.st.com | 
| SK xxxx | RCA (Harris Semiconductors) | www.semi.harris.com | 
| SKB xxxx | Siemens | www.siemens.de | 
| SL xxxx | Plessey Semiconductors | www.gpsemi.com | 
| SMC xxxx | Standard Microsystems | www.smsc.com | 
| SN xxxx | Texas Instruments | www.ti.com | 
| SP xxxx | Plessey Semiconductors | www.gpsemi.com | 
| SSM xxxx | Analog Devices | www.analog.com | 
| SSS xxxx | Precision Monolithic | www.analog.com | 
| SSS xxxx | Solid State Scientific | |
| ST xxxx | SGS-Thomson | www.st.com | 
| STK xxxx | Sanyo | www.semic.sanyo.co.jp | 
| STR xxxx | Sanken | www.sanken-ele.co.jp | 
| SY xxxx | Synertek | |
| TA xxxx | Toshiba | www.semicon.toshiba.co.jp | 
| TAA xxxx | Plessey | www.gpsemi.com | 
| TAA xxxx | ITT | www.itt-sc.de | 
| TAA xxxx | Philips | www.semiconductors.com | 
| TAA xxxx | SGS-ATES Semiconductors | www.st.com | 
| TAA xxxx | Siemens | www.smi.siemens.com | 
| TAA xxxx | Telefunken | www.temic.com | 
| TB xxxx | Toshiba | www.semicon.toshiba.co.jp | 
| TBA xxxx | Plessey | www.gpsemi.com | 
| TBA xxxx | ITT | www.itt-sc.de | 
| TBA xxxx | National Semiconductor | www.national.com | 
| TBA xxxx | Philips | www.semiconductors.com | 
| TBA xxxx | SGS-ATES Semiconductors | www.st.com/ | 
| TBA xxxx | Siemens | www.smi.siemens.com | 
| TBA xxxx | Telefunken | www.temic.com | 
| TCA xxxx | Plessey | www.gpsemi.com | 
| TCA xxxx | ITT | www.itt-sc.de | 
| TCA xxxx | Philips | www.semiconductors.com | 
| TCA xxxx | SGS-ATES Semiconductors | www.st.com | 
| TCA xxxx | Siemens | www.smi.siemens.com | 
| TCA xxxx | Telefunken | www.temic.com | 
| TDA xxxx | Plessey | www.gpsemi.com | 
| TDA xxxx | ITT | www.itt-sc.de | 
| TDA xxxx | Philips | www.semiconductors.com | 
| TDA xxxx | SGS-ATES Semiconductors | www.st.com | 
| TDA xxxx | Siemens | www.smi.siemens.com | 
| TDA xxxx | Telefunken | www.temic.com | 
| TM xxxx | Thordarson | www.electrobase.com/tm | 
| UC xxxx | Solitron | www.solitrondevices.com | 
| ULN xxxx | Sprague | vishay.com/vishay/sprague | 
| uPC xxxx | NEC | www.ic.nec.co.jp | 
| uPD xxx | NEC | www.ic.nec.co.jp | 
| VP xxxx | Sanyo | www.semic.sanyo.co.jp | 
| VPA xxxx | Sanyo | www.semic.sanyo.co.jp | 
| WEP-xxxx | Workman | |
| XC xxxx | Motorola | www.motorola.com | 
| XR xxxx | EXAR Integrated Systems | www.exar.com | 
| Z xxxx | Zilog | www.zilog.com | 
| ZN xxxx | Ferranti GmbH | www.comunidadelectronicos.com |