SN7400N - The company prefix SN indicates this is a Texas Instruments manufactured part. This can also be confirmed through the TI logo.

Manufacturer Prefix or IC Company Prefix or ID are identification codes various semiconductor companies use to identify their integrated circuits. Those IDs are usually found as the first few letters of the part number.

They may often be found on the IC package itself as well along with a possible logo.

Prefix	Company	Note
AD	Analog Devices	Analog Devices, Inc.
AK	Asahi Kasei	Asahi Kasei Corp. (Audio DAC chips)
AL	Annapurna Labs	AWS Graviton
AM	AMD	Advanced Micro Devices Inc.
AR	Atheros	Qualcomm Atheros, Inc.
AT	Atmel	Atmel Corporation
BA	ROHM	ROHM Semiconductor
BCM	Broadcom	Broadcom Corp. (Avago Technologies)
BQ	Benchmarq	Benchmarq Microelectronics
CA	RCA	Analog devices
CD	RCA	Digital devices
CN	Cavium	Cavium, Inc.
DM	Fairchild	Fairchild Semiconductor
DM	National Semiconductor
DS	Dallas Semiconductor	(now Maxim Integrated)
EP, EPC	Altera	Normal series, EPROM's
EPF, EPM	Altera	Flex series, MAX Series
HA, HD	Hitachi	Analog devices, Digital devices
IPQ	Qualcomm	Qualcomm Technologies, Inc.
LM	National Semiconductor
M	Mitsubishi	Mitsubishi Electric Corporation ID may be preceded by three-diamond emblem
MA(A), MBA, MH(B)	Tesla
MC	Motorola	Now ON Semi (ON Semiconductor)
MM	Monolithic Memories
MM	National Semiconductor
MT	MediaTek	MediaTek Inc.
MW	Marvell	Marvell Technology Group Ltd.
N	Philips, Intel
NC	Nitron
NE	Philips, Texas Instruments
NH	National Semiconductor
NJM	NJR	New Japanese Radio Corp.
NM, NMC	Fairchild
PC	NEC, Philips
QCA, QCN	Qualcomm	Qualcomm Technologies, Inc.
RC, RM	Ratheon
RT	Ralink
RTL	Realtek
SD	Temic
SE	Philips, Signetics
SN, TI	Texas Instruments
UA, μA	Fairchild	Fairchild Semiconductor
U	Temic, Zentrum Microelectronics
UA	Philips, Motorola, Texas Instruments
UAA	Motorola
UAF	Burr-Brown
UC	Unitrode, Motorola	ON Semiconductor (previously Thomson)
UCC	Unitrode
UCN	Allegro Microsystems
UCS	Sprague
UD	Zentrum Microelectronics
UDN, UDS, UGN	Allegro Microsystems
ULN	Motorola, Texas Instruments, US Microchip	ON Semiconductor (previously Thomson)
UM	UMC	United Microelectronics Corp.
UMA	Philips
UNX	Fairchild, National Semiconductor
UPD	NEC
V	Amtel
VA, VC	VTC
VCA, VFC	Burr-Brown
VT	VLSI	VLSI Technology Inc.
W	IC Works
WCN	Qualcomm	Qualcomm Technologies, Inc.
WD	Western Digital
X	Xicor
XC	Motorola, Xilinx
XR	Exar
XTR	Burr-Brown
Z	Zilog

Manufacturer Prefix

Prefix	Manufacturers

A	AMD, Allegro Microsystems,
        Fairchild, National Semiconductor
ACF	General Instrument
AD	Analog Devices, Harris
ADC	National Semiconductor
ADEL	Analog Devices
ADG	Analog Devices
ADLH	Analog Devices
ADM	Analog Devices
ADS	Burr-Brown
ADVFC	Analog Devices
AH	Optical Electronics Inc.
ALD	Burr-Brown
Am	AMD
AM	Advanced Micro Devices, Datel
AMP	Analog Devices
AMPAL	AMD
AMSREF	Advanced Monolithic Systems
AN	Panasonic
AT	Atmel
ATT	Lucent Technologies
ATV	Atmel
AVS	ON Semiconductor (previously Thomson))
AY	General Instrument
β	I.P.R.S. Baneasa
BQ	Benchmarq Microelectronics Inc.
BT	Brooktree
BUF	Analog Devices, Burr-Brown, Precision Monolithic
BX	Sony
C	Intel
CA	Harris
CAV	Analog Devices
CD	Harris
CDP	Harris
CLC	Comlinear, National Semiconductor
CM	Supertex, Temic
CMP	Monolithics, Analog Devices
COM	Standard Microsystem Corp.
COP	National Semiconductor
CP	Harris
CS	Harris, Cherry Semiconductor
CX	Sony, Cyrix
CXK	Sony
CY	Cypress
D	Siliconix, Intel
DAC	Analog Devices, National Semiconductor, Burr-Brown
DCP	Burr-Brown
DF	Siliconix
DG	Harris, Temic
DM	National Semiconductor, Fairchild
DP	National Semiconductor
DS	National Semiconductor, Dallas Semiconductor
EF	ON Semiconductor (previously Thomson)
EL	Elantec
EP	Altera
EPM	Altera
ET	ON Semiconductor (previously Thomson)
F	Fairchild, National Semiconductor
FSS	Ferranti
G	California Micro Devices Corp.
GA	Gazelle
GAL	Lattice
GEL	GE
GIC	General Instrument
GL	Goldstar
GM	Goldstar
GMM	Goldstar
GP	General Instrument
GSD	ON Semiconductor (previously Thomson)
H	Harris
HA	Harris, Hitachi
HAD	Honeywell
HAS	Analog Devices
HCF	ON Semiconductor (previously Thomson)
HCPL	Hewlett-Packard
HCTL	Hewlett-Packard
HD	Hitachi
HDAC	Honeywell
HDM	Analog Devices
HEF	Philips
HEP	Motorola
HFA	Harris
HG	Hitachi
HI	Harris
HIN	Harris
HIP	Harris
HL	Hitachi
HM	Hitachi, Temic
HN	Hitachi
HPM	Hewlett-Packard
HT	Holtek
HV	Harris
HY	Hyundai
i	Intel
I	Intel
ICH	Harris
ICL	Harris
ICM	Harris
IDT	Integrated Device Technology
IM	Harris
IMS	Inmos
INA	Burr-Brown
IP	Temic, Seagate Microelectronics
IR	Sharp, International Rectifier
IS	Integrated Silicon Solutions Inc, Burr-Brown
ISD	Information Strorage Devices
ISO	Burr-Brown
ISP LSI	Lattice
ITT	ITT
IVC	Burr-Brown
KA	Samsung
KM	Samsung
KMM	Samsung
KR	Standard Microsystem Corp.
L	Fairchild, National Semiconductor
        ON Semiconductor (previously Thomson)
        Siliconix, Siltronics, Unitrode
LA	Sanyo
LC	Sanyo
LD	Siliconix, Siltronics
LF	National Semiconductor, Motorola
LFT	National Semiconductor
LH	National Semiconductor
LM	National Semiconductor, ON Semiconductor
LMC	National Semiconductor
LMD	National Semiconductor
LMF	National Semiconductor
LMX	National Semiconductor
LPC	National Semiconductor
LPC	National Semiconductor
LS	LSI Computer Systems, ON Semiconductor
LT	Linear Technology Corporation
LTC	Linear Technology Corporation
LTZ	Linear Technology Corporation
M	Mitsubishi, ON Semiconductor
MA	Analog Systems, Marconi
MA	TESLA
MAA	TESLA
MAB	Philips
MACH	Vantis (AMD)
MAT	Monolithics
MAX	Maxim
MB	Fujitsu
MBA	TESLA
MBL8	Fujitsu
MBM	Fujitsu
MC	Micra Hybrids, Motorola, Temic,
        ON Semiconductor, Texas Instruments
MCC	Motorola
MCCS	Motorola
MCM	Motorola
MCS	MOS Technology
MCT	Motorola
MEC	Motorola
MF	National Semiconductor
MH	TESLA
MHB	TESLA
MIC	Micrel
MIL	Microsystems International, Motorola
MK	Mostek, ON Semiconductor (previously Thomson)
ML	Micro Linear Corp.
MM	Motorola, Fairchild, National Semiconductor
MN	Plessy, Micro Networks
MP	Micro Power (Exar)
MPC	Burr-Brown
MPF	Motorola
MPQ	Motorola
MPS	Motorola
MPSA	Motorola
MPY	Burr-Brown
MSC	Microcomputers Systems Components, Oki
MSK	M.S. Kennedy
MSL8	Mitsubishi
MSM	Oki
MT	Mitel Semiconductor
MUX	Analog Devices
MVA	GEC-Plessey Semiconductor
MWM	Motorola
MX	Macronix, Maxim
N	Philips, Intel
NC	Nitron
NE	Philips, Texas Instruments
NH	National Semiconductor
NJM	New Japanese Radio Corp.
NM	Fairchild
NMC	Fairchild
NQ	Seeq
NSC	Newport
OHN	Optek
OM	AEG, Amperex, Siemens, Philips, Telefunken
        ON Semiconductor (previously Thomson)
OP	Monolithics, Analog Devices, Texas Instruments
OPA	Burr-Brown
OPT	Burr-Brown
P	Intel, Temic, Performance Semiconductor
PA	Apex, Intel
PAL	AMD
PALCE	Cypress, Vantis (AMD)
PB	NEC
PBL	Ericsson
PC	NEC, Philips
PCD	AEG, Amperex, Siemens, Telefunken, Philips
        ON Semiconductor (previously Thomson)
PCF	AEG, Amperex, Siemens, Telefunken, Philips
        ON Semiconductor (previously Thomson)
PCM	Burr-Brown
PD	NEC
PDM	Paradigm
PEEL	Information Chips and Technology Inc
PGA	Burr-Brown
PH	Silicon Storage Technology
PIC	Microchip
PL	Altera
PLC	Philips
PLS	Philips
PM	Analog Devices
PQ	Seeq
PSD	Waferscale Integration (WSI)
PWR	Burr-Brown
PZ	Philips
QS	Quality Semiconductor Inc.
R	Rockwell, Raytheon
Ray	Raytheon
RC	Raytheon, Texas Instruments
RCV	Burr-Brown
RD	EG&G Reticon
REF	Analog Devices, Burr-Brown
REG	Burr-Brown
RF	EG&G Reticon
RM	Raytheon, EG&G Reticon
RT	EG&G Reticon
RTC	Seiko, Epson
RU	EG&G Reticon
S	Temic, Philips
SA	Philips
SAA	AEG, Amperex, Philips, Siemens, Telefunken
        ON Semiconductor (previously Thomson)
SAB	AEG, Amperex, Philips, Siemens, Telefunken
        ON Semiconductor (previously Thomson)
SABE	Siemens
SAF	AEG, Amperex, Philips, Siemens, Telefunken
        ON Semiconductor (previously Thomson)
SC	Philips
SCB	AEG, Amperex, Philips, Siemens, Telefunken
        ON Semiconductor (previously Thomson)
SCC	Philips
SCN	AEG, Amperex, Philips, Siemens, Telefunken
        ON Semiconductor (previously Thomson)
SD	Temic
SE	Philips
SFC	ESMF, ON Semiconductor (previously Thomson)
SG	Silicon General (Infinity Micro)
        ON Semiconductor (previously Thomson)
        Texas Instruments, Motorola
SHC	Burr-Brown
SI	Temic, Maxim
SL	Plessy
SM	Nippon Precision Circuits
SN	Texas Instruments, Motorola
SP	Plessy, Philips
SPR	General Instrument
SS	Honeywell
SSM	Analog Devices
SSS	Monolithics
ST	Startech, ON Semiconductor (previously Thomson)
STR	Allegro Microsystems
SW	Analog Devices
SYD, SYS	Syntaq
T, TA	Toshiba
TAA	AEG, Amperex, Siemens, Philips, Telefunken
        ON Semiconductor (previously Thomson)
TAB	Plessy
TBA	AEG, Amperex, Siemens, Philips, Telefunken
        ON Semiconductor (previously Thomson)
TC	Toshiba, Telcom Semiconductor
TCA	AEG, Amperex, Siemens, Philips, Telefunken
        ON Semiconductor (previously Thomson)
TCM	Telcom Semiconductor
TD	Toshiba, ON Semiconductor (previously Thomson)
TDA	Philips, Motorola
        ON Semiconductor (previously Thomson)
TDC	TRW
TDF	ON Semiconductor (previously Thomson)
TEA	AEG, Amperex, Siemens, Philips, Telefunken,
        ON Semiconductor (previously Thomson)
THM	Toshiba
TIBPAL	Texas Instruments
TIL	Texas Instruments
TIP	Texas Instruments
TIPAL	Texas Instruments
TIS	Texas Instruments
TL	Texas Instruments, Motorola
        ON Semiconductor (previously Thomson)
TLC	Texas Instruments
TLE	Texas Instruments
TM	Texas Instruments
TMC	Taytheon
TML	Telmos
TMM	Toshiba
TMP	Toshiba
TMPZ	Toshiba
TMS	Texas Instruments
TP	Teledyne Philbrick
TPQ	Sprague
TS	ON Semiconductor (previously Thomson)
TSC	Teledyne Semiconductor
TSH	ON Semiconductor (previously Thomson)
U	Temic, Zentrum Microelectronics
UA	Philips, Motorola, Texas Instruments
UAA	Motorola
UAF	Burr-Brown
UC	Unitrode, Motorola, ON Semiconductor (previously Thomson)
UCC	Unitrode
UCN	Allegro Microsystems
UCS	Sprague
UD	Zentrum Microelectronics
UDN	Allegro Microsystems
UDS	Allegro Microsystems
UGN	Allegro Microsystems
ULN	ON Semiconductor (previously Thomson)
        Motorola, Texas Instruments, US Microchip
UM	United Microelectronics Corp.
UMA	Philips
UNX	Fairchild, National Semiconductor
UPD	NEC
UPD8	NEC
V	Amtel
VA	VTC
VC	VTC
VCA	Burr-Brown
VFC	Burr-Brown
VT	VLSI Technology Inc.
W	IC Works
WD	Western Digital
X	Xicor
XC	Motorola
XR	Exar
XTR	Burr-Brown
Z	Zilog
ZH	Zetex
ZLD	Ferranti
ZLDO	Zetex
ZM	Zetex
ZMR	Zetex
ZN	Ferranti, GEC-Plessey Semiconductor
ZR	Zetex
ZRA	Zetex
ZRB	Zetex
ZREF	Zetex
ZRT	Zetex
ZSD	Zetex
ZSM	Zetex

Vendor Prefixes

abilis		Abilis Systems
abcn		Abracon Corporation
active-semi	Active-Semi International Inc.
ad		Avionic Design GmbH
adapteva	Adapteva, Inc.
adh		AD Holdings Plc.
adi		Analog Devices, Inc.
aeroflexgaisler	Aeroflex Gaisler AB
al		Annapurna Labs
allwinner	Allwinner Technology Co., Ltd.
alphascale	AlphaScale Integrated Circuits Systems, Inc.
altr		Altera Corp.
amcc		Applied Micro Circuits Corporation (APM, formally AMCC)
amd		Advanced Micro Devices (AMD), Inc.
amlogic		Amlogic, Inc.
ampire		Ampire Co., Ltd.
ams		AMS AG
amstaos		AMS-Taos Inc.
apm		Applied Micro Circuits Corporation (APM)
aptina		Aptina Imaging
arasan		Arasan Chip Systems
arm		ARM Ltd.
armadeus	ARMadeus Systems SARL
artesyn		Artesyn Embedded Technologies Inc.
asahi-kasei	Asahi Kasei Corp.
atmel		Atmel Corporation
auo		AU Optronics Corporation
avago		Avago Technologies
avia		Avia Semiconductor
avic		Shanghai AVIC Optoelectronics Co., Ltd.
axis		Axis Communications AB
bosch		Bosch Sensortec GmbH
brcm		Broadcom Corporation
buffalo		Buffalo, Inc.
calxeda		Calxeda
capella		Capella Microsystems, Inc.
cavium		Cavium, Inc.
cdns		Cadence Design Systems Inc.
chipidea	Chipidea, Inc
chipone		ChipOne
chipspark	ChipSPARK
chrp		Common Hardware Reference Platform
chunghwa	Chunghwa Picture Tubes Ltd.
cirrus		Cirrus Logic, Inc.
cloudengines	Cloud Engines, Inc.
cnm		Chips & Media, Inc.
cnxt		Conexant Systems, Inc.
cortina		Cortina Systems, Inc.
cosmic		Cosmic Circuits
crystalfontz	Crystalfontz America, Inc.
dallas		Maxim Integrated Products (formerly Dallas Semiconductor)
davicom		DAVICOM Semiconductor, Inc.
denx		Denx Software Engineering
digi		Digi International Inc.
digilent	Diglent, Inc.
dlg		Dialog Semiconductor
dlink		D-Link Corporation
dmo		Data Modul AG
ebv		EBV Elektronik
edt		Emerging Display Technologies
elan		Elan Microelectronic Corp.
emmicro		EM Microelectronic
energymicro	Silicon Laboratories (formerly Energy Micro AS)
epcos		EPCOS AG
epfl		Ecole Polytechnique Fédérale de Lausanne
epson		Seiko Epson Corp.
est		ESTeem Wireless Modems
ettus		NI Ettus Research
eukrea  	Eukréa Electromatique
everest		Everest Semiconductor Co. Ltd.
everspin	Everspin Technologies, Inc.
excito		Excito
fcs		Fairchild Semiconductor
fsl		Freescale Semiconductor
geniatech	Geniatech, Inc.
giantplus	Giantplus Technology Co., Ltd.
globalscale	Globalscale Technologies, Inc.
gmt		Global Mixed-mode Technology, Inc.
goodix		Shenzhen Huiding Technology Co., Ltd.
google		Google, Inc.
grinn		Grinn
gumstix		Gumstix, Inc.
gw		Gateworks Corporation
hannstar	HannStar Display Corporation
haoyu		Haoyu Microelectronic Co. Ltd.
himax		Himax Technologies, Inc.
hisilicon	Hisilicon Limited.
hit		Hitachi Ltd.
honeywell	Honeywell
hp		Hewlett Packard
i2se		I2SE GmbH
ibm		International Business Machines (IBM)
idt		Integrated Device Technologies, Inc.
iom		Iomega Corporation
img		Imagination Technologies Ltd.
innolux		Innolux Corporation
intel		Intel Corporation
intercontrol	Inter Control Group
isee		ISEE 2007 S.L.
isil		Intersil
karo		Ka-Ro Electronics GmbH
keymile		Keymile GmbH
lacie		LaCie
lantiq		Lantiq Semiconductor
lenovo		Lenovo Group Ltd.
lg		LG Corporation
linux		Linux-specific binding
lsi		LSI Corp. (LSI Logic)
lltc		Linear Technology Corporation
marvell		Marvell Technology Group Ltd.
maxim		Maxim Integrated Products
mediatek	MediaTek Inc.
merrii		Merrii Technology Co., Ltd.
micrel		Micrel Inc.
microchip	Microchip Technology Inc.
micron		Micron Technology Inc.
minix		MINIX Technology Ltd.
mitsubishi	Mitsubishi Electric Corporation
mosaixtech	Mosaix Technologies, Inc.
moxa		Moxa
mpl		MPL AG
mti		Imagination Technologies Ltd. (formerly MIPS Technologies Inc.)
mundoreader	Mundo Reader S.L.
murata		Murata Manufacturing Co., Ltd.
mxicy		Macronix International Co., Ltd.
national	National Semiconductor
neonode		Neonode Inc.
netgear		NETGEAR
netlogic	Broadcom Corporation (formerly NetLogic Microsystems)
newhaven	Newhaven Display International
nintendo	Nintendo
nokia		Nokia
nvidia		NVIDIA
nxp		NXP Semiconductors
onnn		ON Semiconductor Corp.
opencores	OpenCores.org
ortustech	Ortus Technology Co., Ltd.
ovti		OmniVision Technologies
panasonic	Panasonic Corporation
parade		Parade Technologies Inc.
pericom		Pericom Technology Inc.
phytec		PHYTEC Messtechnik GmbH
picochip	Picochip Ltd
plathome	Plat'Home Co., Ltd.
pixcir  	PIXCIR MICROELECTRONICS Co., Ltd.
powervr		PowerVR (deprecated, use img)
qca		Qualcomm Atheros, Inc.
qcom		Qualcomm Technologies, Inc.
qemu		QEMU, a generic and open source machine emulator and virtualizer
qnap		QNAP Systems, Inc.
radxa		Radxa
raidsonic	RaidSonic Technology GmbH
ralink		Mediatek/Ralink Technology Corp.
ramtron		Ramtron International
realtek 	Realtek Semiconductor Corp.
renesas		Renesas Electronics Corporation
ricoh		Ricoh Co. Ltd.
rockchip	Fuzhou Rockchip Electronics Co., Ltd.
samsung		Samsung Semiconductor
sandisk		Sandisk Corporation
sbs		Smart Battery System
schindler	Schindler
seagate		Seagate Technology PLC
semtech		Semtech Corporation
sil		Silicon Image
silabs		Silicon Laboratories
siliconmitus	Silicon Mitus, Inc.
simtek
sii		Seiko Instruments, Inc.
silergy		Silergy Corp.
sirf		SiRF Technology, Inc.
sitronix	Sitronix Technology Corporation
skyworks	Skyworks Solutions, Inc.
smsc		Standard Microsystems Corporation
snps		Synopsys, Inc.
solidrun	SolidRun
sony		Sony Corporation
spansion	Spansion Inc.
sprd		Spreadtrum Communications Inc.
st		STMicroelectronics
ste		ST-Ericsson
stericsson	ST-Ericsson
synology	Synology, Inc.
tbs		TBS Technologies
thine		THine Electronics, Inc.
ti		Texas Instruments
tlm		Trusted Logic Mobility
toradex		Toradex AG
toshiba		Toshiba Corporation
toumaz		Toumaz
truly		Truly Semiconductors Limited
usi		Universal Scientific Industrial Co., Ltd.
v3		V3 Semiconductor
variscite	Variscite Ltd.
via		VIA Technologies, Inc.
virtio		Virtual I/O Device Specification (developed by the OASIS consortium)
voipac		Voipac Technologies s.r.o.
winbond 	Winbond Electronics corp.
wlf		Wolfson Microelectronics
wm		Wondermedia Technologies, Inc.
x-powers	X-Powers
xes		Extreme Engineering Solutions (X-ES)
xillybus	Xillybus Ltd.
xlnx		Xilinx
zyxel		ZyXEL Communications Corp.
zarlink		Zarlink Semiconductor

Chipset Vendors

A
Actions
ADATA
Agere
AIC
Airgo Networks
Airoha
ALi
Alibaba T-Head
Alliance
Allwinner
Altima
AMD
AMIC
Amlogic
Amp'ed RF
AMPAK
Anadigics
Annapurna Labs
Apacer
Applied Micro
Aquantia
ArtInChip
Artmem
Atheros
Atmel
B
Brecis
Broadcom
C
Cavium
Celeno
CEVA
CFeon
Cirrus Logic
Conexant
Cortina
CSR
CVitek
CXMT
Cypress
D
Dynachips
E
EcoNet
Elixir
Elpida
Envara
Eorex
ESMT
Espressif
EtronTech
F
Fisilink
Foresee
Freescale
Fudan Micro
Fujitsu
G
GainSpan
GCT
GigaDevice
GlobespanVirata
GLT
GSI
H
Harris
HiSilicon
I
IC+
IDT
Ikanos
Infineon
Ingenic
Inprocomm
Intel
Intellon
Intersil
ISSI
K
KH
Kingston
Kioxia
L
Lantiq
Legerity
M
M-Systems
Macronix
Marvell
Maxim
MaxLinear
MediaTek
Metanoia
Micrel
Microchip
Micron
Microsemi
Mindspeed
Mira
Morse Micro
Mosel Vitelic
Motorcomm
Motorola
MStar
Myson Century
N
Nanoradio
Nanya
National Semiconductor
Newracom
No Wires Needed
Nordic
Nufront
Nuvoton
NXP
O
Octavo Systems
P
ParkerVision
Peraso
Philips
Phison
PieceMakers
PLX Technology
PMC-Sierra
Pointec
ProMOS
Proxim
PSC
Q
Qimonda
Qualcomm
Qualcomm Atheros
Quantenna
Quantum Effect Design
R
Radia
Ralink
Rayson
RDA
RDC
Realtek
Redpine Signals
Renesas
Resonext
RF Micro Devices
Richwave
S
Samsung
SanDisk
SiBeam
Sigma Designs
SigmaStar
Silicon Data
Silicon Image
Silicon Labs
Silicon Motion
SiS
SK hynix
Skyworks
Sonix
SophGo
SpacemiT
Spansion
SpecTek
Spreadtrum
SST
StarFive
STMicro
Storlink
Sunplus
Symbol
Synaptics
Syntek
T
Taifatech
Tensilica
Tensorcom
Texas Instruments
Toshiba
Transmeta
TrendChip
TriDuctor
U
Ubicom
Unisoc
V
Vanguard
VIA
Vitesse
VLSI
W
WavePlus
Winbond
Winner Micro
Wolfson
WonderMedia
X
XMC
Xtensa
XTX Tech
Z
Zarlink
Zbit Semi
Zentel
Zilog
ZyDAS