If the package is unlabeled or does not have a logo, the vendor ID database may be helpful in identifying an unknown device.

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By tag

Tag	Quantity
collection anon	2
vendor ms	1
type unknown	4375
year unknown	4727
foundry unknown	4918
tech unknown	535
vendor ncr	8
type cpu	1
type cpu 6502	1
year 1989	4
collection anonymous	8
vendor bandai	10
vendor generalplus	33
vendor ricoh	13
collection	46
collection antifuse	3
vendor motorola	230
collection azonenberg	25
vendor 1g10	1
vendor 2f8	1
collection az	103
vendor actel	4
vendor microsemi	1
year 2007	5
type logic	73
type logic programmable	45
type logic programmable fpga	29
foundry infineon	1
tech 130nm	2
vendor altera	9
type logic programmable cpld	15
year 2000	17
foundry tsmc	16
tech 350nm	21
vendor ad	22
year 2002	9
type analog	10
type analog audio	4
year 1992	8
type sensor	5
type sensor temperature	1
vendor analog-devices	36
vendor atmel	109
type memory	52
type memory flash	17
type memory flash nor	10
type processor	45
type processor microcontroller	37
type processor microcontroller avr	5
year 2003	6
year 2008	7
vendor butterflylabs	1
vendor chronicletech	1
vendor css	1
type asic	9
type crypto	7
type crypto bitcoin	1
year 2012	3
tech 65nm	4
foundry ibm	7
vendor cypress	29
year 1994	6
type memory sram	9
type soc	2
type processor microcontroller arm	1
type processor microcontroller arm cortex m0	1
foundry cypress	1
vendor silabs	4
type clocking	1
year 2005	4
type interface	20
type interface usb	8
vendor cyrix	21
year 1998	13
type processor microprocessor	11
type processor microprocessor x86	6
tech 250nm	7
vendor efabless	6
vendor ess	14
year 1999	15
vendor fairchild semiconductor	1
type logic discrete	28
type logic discrete 74xx	32
vendor ftdi	3
year 2011	1
type interface serdes	10
type interface serdes uart	4
tech 180nm	17
foundry umc	22
tech 600nm	15
collection mcmaster	637
year 2009	5
collection mncoppola	2
vendor hasbro	2
vendor honeywell	3
year 1995	20
type sensor airflow	1
type mems	1
vendor hynix	3
type memory flash nand	4
vendor ibm	65
type sensor image	3
type sensor image fingerprint	2
vendor intel	221
foundry intel	10
year 2010	5
vendor micrel	3
type interface serdes ethernet	6
type network	8
type network ethernet	6
vendor microchip	109
year 2006	7
type memory eeprom	10
foundry microchip	1
type processor microcontroller pic	9
type processor microcontroller pic 8bit	7
year 1996	14
tech 800nm	11
type processor microcontroller mips	2
tech 90nm	7
vendor micron	7
vendor montage	1
vendor freescale	7
type processor microprocessor powerpc	1
vendor myricom	2
true mask art	7
year 2001	11
type interface pci	2
type network myrinet	2
vendor nec	133
vendor nintendo	51
type processor microprocessor arm	2
tech 45nm	3
vendor nvidia	12
type processor gpu	12
vendor microsoft	6
vendor pervasive	4
vendor photobit	1
type sensor image camera	1
vendor pny	1
vendor siliconmotion	2
vendor promise	1
vendor ralink	2
type processor microprocessor mips	1
vendor semtech	2
type analog rf	2
vendor sharp	26
foundry sharp	2
type processortype processor microcontroller	1
type processor microcontroller 8051tech unknown	1
year 2004	9
vendor siliconimage	2
vendor smsc	26
vendor st	146
type mcu	1
year 2015	1
vendor sunplus	20
type processor microcontroller 8051	21
vendor supereal	1
vendor tesla	3
vendor ti	409
type analog converter	1
type analog converter ad	1
type logic discrete 4xxx	6
type power	10
type power motordriver	1
vendor maxim	24
type interface levelshifter	1
type interface 1394	2
vendor unknown	117
type crypto smartcard	32
type memory dram	19
vendor wch	16
vendor winbond	25
type memory dram ddr2	1
vendor worldsemi	1
type power led	1
vendor xilinx	48
foundry samsung	3
foundry hejian	3
foundry philips	1
vendor lrs	1
vendor zilog	34
year 1980	12
year 1991	5
type processor microcontroller z80	2
type mcm	3
type discrete	5
type discrete transistor	4
type discrete transistor mosfet	2
type discrete diode	2
collection balda	1
collection bercovici	3022
vendor 3com	7
vendor 3dfx	3
vendor 8x8	1
vendor acer	2
vendor adaptec	6
vendor admos	1
vendor admtek	3
vendor agere	5
vendor agilent	6
vendor alaris	1
vendor alcatel	7
vendor alcor	1
vendor ali	3
vendor allegro	4
vendor alliance	3
vendor alpha	7
vendor alpha-micro	2
vendor alphamicro	2
vendor altima	2
vendor amcc	1
vendor amd	108
vendor ami	12
vendor amlogic	1
vendor analog	8
vendor aoc	1
vendor apple	21
vendor arm	5
vendor asahi-kasei	2
vendor asantei	1
vendor asus	1
vendor atc	2
vendor atheros	3
vendor ati	16
vendor att	27
vendor avasem	1
vendor avs	1
vendor benchmarq	1
vendor bit	3
vendor broadcom	20
vendor brooktree	10
vendor bull	3
vendor burr-brown	9
vendor c-cube	5
vendor canon	1
vendor catalyst	3
vendor cheertek	1
vendor chicony	1
vendor chips	4
vendor chrontel	1
vendor cirrus-logic	20
vendor cisco-systems	1
vendor clearlogic	2
vendor cmdu	2
vendor conexant	17
vendor creative	8
vendor crystal	6
vendor csi	3
vendor daewoo	1
vendor dallas	89
vendor data-general	1
vendor datel	1
vendor davicom	1
vendor ddc	2
vendor dec	71
vendor delta	1
vendor digidesign	2
vendor dlink	1
vendor dsp	8
vendor elan	18
vendor emulex	1
vendor ene	4
vendor energy-micro	2
vendor ensoniq	2
vendor epson	4
vendor equinox	1
vendor ericsson	5
vendor eteq	1
vendor etoms	1
vendor exar	4
vendor exel	1
vendor faichild	1
vendor fairchild	96
vendor fe	1
vendor fujitsu	51
vendor funai	1
vendor general-instruments	3
vendor genesis	8
vendor genesys-logic	8
vendor gennum	2
vendor glogic	1
vendor goldstar	3
vendor gps	2
vendor green-math	1
vendor harris	14
vendor hitachi	41
vendor holtek	15
vendor hp	45
vendor hsmc	1
vendor hyperstone	1
vendor hyundai	2
vendor ic-plus	1
vendor icdesign	1
vendor ics	1
vendor ict	1
vendor idt	28
vendor iit	8
vendor imp	4
vendor infineon	33
vendor initio	1
vendor inmos	8
vendor inno-tech	1
vendor intelleflex	2
vendor intergraph	3
vendor international-rectifier	7
vendor intersil	7
vendor issi	1
vendor ite	6
vendor itt	6
vendor jmicron	2
vendor jrc	19
vendor jvc	2
vendor kawasaki	1
vendor kec	3
vendor king-billion	3
vendor lapis-semiconductors	1
vendor lattice	22
vendor legerity	4
vendor level-one	4
vendor lexmark	1
vendor lgs	1
vendor linear	5
vendor logic	3
vendor logitech	1
vendor lsi	41
vendor lucent	45
vendor macronix	4
vendor maker-communications	1
vendor marvell	9
vendor matrox	1
vendor matsushita	10
vendor mc	2
vendor mediatek	28
vendor mhs	6
vendor microlinear	1
vendor micronas	4
vendor mips	5
vendor misc	2
vendor mistumi	1
vendor mitel	2
vendor mitsubishi	18
vendor mitsumi	4
vendor mittel	1
vendor mme	3
vendor mmi	9
vendor mos	28
vendor mosel	2
vendor mostek	6
vendor mr-bios	1
vendor mrt	1
vendor mstar	3
vendor music	1
vendor nat-semi	10
vendor national	47
vendor ncube	4
vendor neodio	1
vendor netsilicon	1
vendor nkk	1
vendor nortel-networks	6
vendor novatek	7
vendor npc	2
vendor nuvoton	10
vendor nxp	27
vendor nyquest	2
vendor o2micro	2
vendor oak	5
vendor oki	20
vendor omega-micro	2
vendor on-semiconductor	1
vendor onsemi	3
vendor opti	4
vendor optotek	1
vendor orbit	2
vendor pairgain	1
vendor panafacom	1
vendor panasonic	9
vendor paradise	2
vendor performance-semi	9
vendor philips	79
vendor phison	2
vendor pioneer	1
vendor plessey	1
vendor plx-technology	1
vendor pmc	5
vendor portek	1
vendor pyramid-semi	4
vendor qed	4
vendor qsi	1
vendor quicklogic	2
vendor quickvoice	1
vendor raytheon	1
vendor rca	8
vendor rdc	1
vendor realtek	17
vendor riso	1
vendor rockwell	37
vendor rohm	18
vendor ross	6
vendor s-mos-systems	1
vendor s3	6
vendor sagem	2
vendor saifun	1
vendor samsung	67
vendor sandisk	3
vendor sans	1
vendor sanyo	9
vendor seagate	1
vendor seeq	4
vendor sega	19
vendor seiko	5
vendor sgi	11
vendor sgs	2
vendor shining	1
vendor siemens	24
vendor sierra	13
vendor sigma-designs	3
vendor sigma-micro	6
vendor sigmatel	1
vendor signetics	28
vendor silan	1
vendor silicon-image	8
vendor silicon-labs	1
vendor silicon-logic	1
vendor silicon-systems	8
vendor siliconix	3
vendor silitek	1
vendor sipex	1
vendor sis	7
vendor sitronix	6
vendor skymedi	1
vendor smc	7
vendor soisic	1
vendor solid-state-scientific	1
vendor sonicwall	1
vendor sonix	40
type microcontroller	1
vendor sony	67
vendor spansion	1
vendor starnovax	1
vendor sun	4
vendor supertex	2
vendor supreming	1
vendor symbios-logic	1
vendor syncmos	8
vendor synertek	2
vendor taifatech	1
vendor tamarack	2
vendor taos	1
vendor tdk	3
vendor techwell	1
vendor tektronix	2
vendor teledyne	2
vendor temic	3
vendor tenx	3
vendor think	1
vendor thomson	9
vendor tmc	1
vendor toshiba	71
vendor trident	6
vendor trt	1
vendor trw	4
vendor tseng	2
vendor ulsi	3
vendor umc	19
vendor unitrode	3
vendor ussr	8
vendor v3-semiconductor	1
vendor valence	1
vendor vectron	2
vendor via	6
vendor virata	1
vendor vlsi	68
vendor vtc	2
vendor vtech	1
vendor waferscale	4
vendor wd	3
vendor weitek	12
vendor weltrend	4
vendor western-digital	21
vendor western-electric	3
vendor wsi	2
vendor xicor	3
vendor xircom	2
vendor yamaha	22
vendor zetex	13
vendor zoran	9
vendor zydas	1
vendor zyxel	1
collection birdman	209
vendor bt	1
vendor butterfly	1
type processor microcontroller 8751	8
vendor lsi logic	1
vendor ns	3
vendor performance	1
vendor silicon magic	1
vendor we	1
collection bscircuitdesigns	1
vendor parallax	2
bunnie	1
awininc	1
aw8690	1
collection bunnie	11
vendor broadcomm	2
vendor californiamicro	1
collection caps0ff	45
vendor data-east	6
vendor jetkey	2
vendor kaneco	1
vendor konami	35
vendor namco	25
vendor taito	16
vendor nichibutsu	1
type dsp	2
vendor toaplan	3
collection coalshark	1
collection d356	1
collection drdecap	1
foundry st	1
vendor capcom	12
year 1987	9
tech 1500nm	1
collection flylogic	14
type rfid	1
vendor renesas	9
collection dr decap	1
collection evilmonkeyz	1
collection felinefriendly	15
vendor bosch	15
year 1990	6
year 1996-5	1
year 1993	9
year 1971	1
vendor seta	7
foundry	42
collection furrtek	167
vendor allumer	1
vendor asahi	1
vendor ascii	1
vendor assp	1
vendor atari	5
vendor cave	1
vendor deco	1
vendor hudson	4
vendor kaneko	3
vendor nanao	7
vendor nmk	8
vendor roland	13
vendor seibu	3
vendor snk	10
vendor technos	1
vendor toyoba	1
vendor unk	3
vendor videosystem	1
vendor watara	1
collection gekkio	8
vendor kingstar	1
vendor sola	1
collection gerlinsky	5
type wafer	33
vendor datatrak	1
year 1988	11
foundry ti	2
collection goodspeed	86
vendor amiccom	1
vendor casio	2
vendor chipcon	3
vendor ember	4
vendor gigadevice	3
vendor hr	1
vendor lapis	2
vendor mifare	1
vendor mykotronx	3
vendor nordic	2
vendor nsc	1
vendor raspberrypi	1
vendor rsa	5
vendor stmicro	13
vendor tengen	1
vendor verisign	1
vendor waveshare	1
vendor znation	1
collection h1kari	13
vendor zeloof	1
collection hw0	1
collection infosecdj	242
vendor aladdin	1
year 1985	8
year 1981	6
year 1983	4
type gal	1
vendor cambridge-silicon-radio	1
vendor cern	2
year 1984	7
year 1978	3
vendor denso	10
year 2020	2
vendor elmos	1
vendor espressif	4
vendor fuji-electric	1
vendor general-instrument	3
vendor gsmc	2
vendor infn-pd	1
vendor iskra	1
vendor kodak	1
year 1977	1
year 1979	3
vendor oasis	1
vendor pixart-imaging	2
vendor rf-micro-devices	3
year 1997	10
vendor sirf	1
vendor skyworks	1
vendor starchip	3
year 2018	1
vendor thomson-csf	1
type logic programmable pal	2
vendor toko-america	1
vendor toyota	4
vendor vrt	1
vendor xlsemi	1
vendor zentrum	1
vendor zentrum-mikroelektronik-dresden	1
vendor zhuhai-jieli-tech	1
collection jglim	1
vendor abov	1
collection jgrip	4
collection johnycsh	1
collection juchong1	1
vendor linksys	1
vendor adhoc	1
collection marmontel	137
vendor ams	2
vendor gi	2
vendor hke	1
vendor thine	1
vendor zarlink	1
collection martijn	41
vendor cisco	1
vendor xerox	1
tech 1000nm	1
foundry lockheed	1
type analog multiplier	1
collection labrat	18
vendor amic	1
vendor antminer	1
vendor apa	1
vendor aspeed	1
collection unknown	4
type ccd	1
vendor authentec	1
vendor bell	1
type mask	1
vendor bendai	1
collection tommi	17
vendor matushita	1
vendor cbm	3
vendor csg	6
tech 3um	2
year 1986	7
vendor commodore	2
vendor consonance	1
vendor cpi	1
vendor creative-tech	4
vendor cw	1
vendor delco	2
vendor elixir	1
type memory dram ddr	4
vendor ellsworth	1
vendor everanalog	1
vendor fudan-micro	1
vendor galoob	1
sega game genie	4
vendor gatefield	1
vendor gemalto	1
vendor google	1
vendor gravis	1
vendor gsi	1
vendor gsky	8
tag vendor hitachi	1
vendor hk	1
vendor htl	1
type memory dram sdram	8
type memory rom	3
year 1976	2
type microprocessor microprocessor	1
type processor microprocessor i960	1
type eprom	2
year 1973	4
year 1982	4
tag vendor intel	1
vendor interdesign	5
vendor ir	1
vendor jieli	1
vendor jrx	1
vendor kong-feng	4
vendor konix	2
vendor led-color	1
vendor lime	1
vendor linkcoresafe	3
vendor lmi	2
vendor macom	2
type analog rf switch	1
vendor micro-module-systems	1
vendor gic	1
vendor aws	1
vendor mithro	1
vendor modsemi	2
vendor moschip	1
vendor mosis	1
type analog vref	1
vendor msc	1
vendor mt	1
vendor nat semi	18
type memory eprom	1
vendor nations	8
nintendo shvc	4
vendor mxic	1
foundry nec	1
vendor northern-telecom	1
vendor nexperia	1
vendor on-semi	1
vendor onwafer	3
vendor pacesetter	1
vendor pccw	1
vendor phillips	3
vendor pixart	2
vendor polaroid	3
vendor pricer	1
vendor prolific	2
vendor raspberry-pi	2
vendor rios	3
vendor rochester	1
foundry fujitsu	1
vendor russian	2
vendor s-a	1
type memory dram edo	1
type memory dram sgram	1
vendor sandforce	1
vendor sdt	1
vendor shindengen	1
foundry signetics	1
vendor silego	1
vendor simtek	1
vendor smi	1
vendor soc	2
vendor solitron	1
type discrete transistor bjt	1
year 1965	1
vendor soviet	1
vendor spacex	5
vendor sprague	1
vendor sst	2
vendor sunlink	1
vendor szledcolor	1
vendor teridian	1
vendor test	2
type power smps	1
type power battery	3
year 1974	1
vendor tiny-tapeout	2
vendor tmp	2
vendor tsi	1
vendor ssi	2
year 1975	4
vendor tundra	1
type sog	1
vendor ublox	1
vendor unityopto	1
vendor mastercard	1
vendor us	1
vendor utsource	2
vendor vetronix	1
vendor vis	1
vendor votrax	1
type interface ata	1
vendor wdc	2
tech 28nm	1
foundry seiko	12
foundry yamaha	6
vendor zxic	1
vendor zywyn	1
collection mevtimov	14
vendor psc	1
collection misc	4
collection miuchizreborn	3
collection mne	2
collection nats	3
auser ignore errors	1
vendor genesys logic	1
type interface usb hub	1
collection nico	66
vendor pmi	1
vendor	347
vendor bb	1
vendor csr	1
vendor ltc	2
vendor philip	1
vendor portal player	1
bendor msi	1
vendor wolfson	1
collection ogoun	2
collection org	1
collection pbx	6
collection philpem	3
vendor gec-plessey	1
vendor vlsi-technology	1
collection plgdavid	1
collection pmonta	6
year 1972	1
collection rcp-nus	1
vendor juchong1	1
collection rede	1
collection riddle	1
collection robertbaruch	2
vendor national semiconductor	1
collection meta	3
collection ryancor	29
vendor dmtek	1
vendor skywater130	1
collection sean	16
vendor ideal	1
vendor mb	1
vendor parkbro	2
collection shirriff	2
collection tiny-tapeout	1
mpw	1
2024	1
skywater	1
collection vold	1
collection whitequark	1
collection williac	2
collection yamaha	1
vendor v9938	1
collection yournamehere	1
vendor natsemi	1
vendor sumitomo	1

References

http://www.advanced-tech.com/ic_logos/ic_logos.htm
Russian IC vendors: http://cpu-ukraine.com/article/10.html