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Chip numbers starting with 42

nr	name	cat	description	manufacturer
42	OP-42		OPAMP*, pinout	Analog Devices
42	OP42	amp*	High Speed, Fast Settling Precision Operational Amplifier, data	AD
42	SO42-5X	mixer	same, original Siemens (smd) - see TBB042G
42	SO42P-SIE	mixer	same, original Siemens	order from Barend
42	SO42P-TSL	mixer	Mixer in DIL	order from Barend
42	UAF42	filter	active filter 100KHz	BB
420	AD420	dac,spi	DAC, 16-bit 4-20 mA current loop with on-chip reference	AD
420	AD420	dac	Serial Input 16-Bit 4 20 mA, 0 20 mA DAC, data	AD
420	MAX420		+/-15V chopper stabiliser opamp*, pinout	maxim
420	MAX420	amp*	±15V Chopper Stabilized opamp*	Maxim*
420	OP420	amp*	Quad* Micropower Operational Amplifier, data	AD
420	RCV420		Precision 4-20mA Current Loop Receiver, pinout	Burr-Brown
4200	HCPL4200		20MA CURRENT LOOP, pinout	HEWLETT PACKARD
4200	R4200	mpu	RISC processor, www.mips.com/HTMLs/R4200_B.html	MIPS*
4202	XR4202	amp*	quad* programmable opamp*	Exar (obsolete)
421	AD421	dac	Loop-Powered 4-20 mA DAC, data	AD
421	DG421	switch	Improved, Low On Resistance, CMOS* analog switch	Maxim*
421	MAX421	amp*	±15V Chopper Stabilized opamp*	Maxim*
421	OP421	amp*	Quad, Low-Power, Single or Dual Supply, data	AD
421000	D421000	dram	1M*1 DRAM (NEC) pinout
421001	421001	~	pinout
421002	421002	~	pinout
42101	D42101	buffer	9108 NTSC line buffer	NEC
42102	D42102	buffer	11348 PAL line buffer	NEC
4212	PLC42VA12	pl	CMOS* universal EPLD DIL24, CERDIP24	Philips
4212	SDA4212		see U891BS
4216100	4216100		16Mx1 DRAM 4K refresh, pinout	NEC
4216100	D4216100	dram	16M1 DRAM fast page 4K ref	NEC
4216101	D4216101	dram	16M1 DRAM nibble 4K ref	NEC
4216102	D4216102	dram	16M1 DRAM static column 4K ref	NEC
4216400	D4216400	dram	4M4 DRAM fast page 4K ref	NEC
4216401	D4216401	dram	4M4 DRAM nibble 4K ref	NEC
4216402	D4216402	dram	4M4 DRAM static column 4K ref	NEC
4216405	4216405		4Mx4 DRAM, pinout	NEC
4216800	4216800		2Mx8 DRAM 4K Refresh, pinout	NEC
4216800	D4216800	dram	2M*8 DRAM fast page 4Kref	NEC
4216802	D4216802	dram	2M*8 DRAM static column	NEC
4216805	4216805		2Mx8 DRAM HYPER PAGE MODE, pinout	NEC
4217100	4217100		16Mx1 DRAM 2K refresh, pinout	NEC
4217100	D4217100	dram	16M1 DRAM fast page 2K ref	NEC
4217101	D4217101	dram	16M1 DRAM nibble 2K ref	NEC
4217102	D4217102	dram	16M1 DRAM static column 2K ref	NEC
4217400	D4217400	dram	4M4 DRAM fast page 2K ref	NEC
4217401	D4217401	dram	4M4 DRAM nibble 2K ref	NEC
4217402	D4217402	dram	4M4 DRAM static column 2K ref	NEC
4217800	4217800		2Mx8 DRAM 2K Refresh, pinout	NEC
4217800	D4217800	dram	2M*8 DRAM fast page 2Kref	NEC
422	AL422	video	3M-bit Frame buffer	Averlogic*
422	MAX422		+/-15V chopper stabiliser opamp*, pinout	maxim
422	MAX422	amp*	Low Power, ±15V Chopper Stabilized opamp*	Maxim*
4225616	MT42C256K16A1	video	256k16 VRAM EDO	Micron
42264	D42264	video	64k4 VRAM CMOS*	NEC
4227	RC4227GN		OP-AMP, pinout	RAYTHEON
42273	D42273	video	256k4 VRAM	NEC
42274	D42274	video	256k4 VRAM flash write	NEC
42275	D42275	video	128k8 VRAM	NEC
423	DG423	switch	Improved, Low On Resistance, CMOS* analog switch	Maxim*
423	MAX423	amp*	Low Power, ±15V Chopper Stabilized opamp*	Maxim*
4241	MM4241ABL	rom	5x7 char gen ROM, col scan, 900ns	NS
424100	D424100	dram	4M*1 DRAM fast page (NEC) pinout
424101	D424101	dram	4M*1 DRAM nibble	NEC
424102	D424102	dram	4M*1 DRAM static column	NEC
424170	D424170	dram	256k*16 DRAM fast page 1Kref	NEC
424190	D424190	dram	256k*18 DRAM fast page 1Kref	NEC
424256	D424256	dram	256k*4 DRAM	NEC
424256	MT42C4256	video	256k4 VRAM 512*4 SAM	Micron
424256	MT42C4256Z	dram	256X4 VIDEO ZIP	Micron?
424256	uPD424256C	dram	256k*4 Fast Pagemode DRAM	NEC*
424257	KM424C257J	dram	256X8-70, VIDEO SOJ	Samsung
424257	KM424C257Z	dram	256X4-70 VIDEO ZIP	Samsung
424260	424260		256k * 16 DRAM, pinout	NEC
424260	D424260	dram	256k16 DRAM fast page 2 CAS 512ref	NEC
424263	D424263	dram	256k16 DRAM fast page 2 CAS WPB 512ref	NEC
424280	D424280	dram	256k18 DRAM fast page 2 CAS 512ref	NEC
424400	D424400	dram	1M*4 DRAM fast page (NEC) pinout
424402	D424402	dram	1M*4 DRAM static column	NEC
424410	D424410	dram	1M*4 DRAM fast page WPB	NEC
424412	D424412	dram	1M*4 DRAM static column WPB	NEC
424440	D424440	dram	1M*4 DRAM fast page 4 CAS	NEC
424800	D424800	dram	512k*8 DRAM fast page	NEC
424810	D424810	dram	512k*8 DRAM fast page WPB	NEC
424900	D424900	dram	512k*9 DRAM fast page	NEC
425	4N25		OptoIsolator, pinout	Texas Instruments
425	4N25	~	pinout
425	DG425	switch	Improved, Low On Resistance, CMOS* analog switch	Maxim*
4250	LM4250	opamp*	Precision opamp* DIP8	order from Barend
4250	LM4250	amp*	Programable opamp*	NS
4256	TMS4256-12nl	dram	DRAM 256k*1 page mode 120ns	TI
4256	TMS4256-15nl	dram	DRAM 256k*1 page mode 150ns	TI
426	4N26		OptoCoupler, pinout	Texas Instruments
426	ADG426		t - LC, data	AD
426	CLC426	amp*	50 MHz VF opamp*	Comlinear
427	4N27		OptoCoupler, pinout	Texas Instruments
427	MAX427		LO NOISE PREC OP AMP*, pinout	MAXIM
427	MAX427	amp*	Low-Noise, High-Precision opamp*	Maxim*
428	4N28		OptoCoupler, pinout	Texas Instruments
428	ADG428		t - LC, data	AD
428	CLC428	amp*	dual* 40 MHz VF opamp*	Comlinear
428	ZN428	dac	8-bit D-A Converter , data (shtml needed)	GPS
4287	MT4LC2M8E7	dram	2M*8 DRAM EDO	Micron
429	4N29	isol	Spectronics optoisolator	Spectronics
429	ADG429		t - LC, data	AD
429	MXT429	power	High-Speed, 6A MOSFET* Driver (Inverting)	Maxim*

Other sites where you can search on chip number

www.chipdocs.com/	Very good!
www.icmaster.com/	Registration is needed in advance. Will be closed spring 2002.
www.questlink.com/	Registration is needed before you can download datasheets. Chips can sometimes be ordered via Arrow/Avnet.
www.elisnet.or.jp/	In Japanese only.

For more data about the above WWW sites and for more information sites.

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