1-Wire Device Command Code Table

OWFS	SF.net project page	New OWFS Website!	by Paul H Alfille

Complete 1-wire command codes (see simpler table)

Sort by: Device number, iButton or Family code

Device	iButton	Name	Family	Memory	CRC	01	02	03	05	07	08	10	11	12	13	0C	0F	11	17	21	22	23	25	28	33	33	37	39	3C	3C	41	43	44	48	49	4E	55	55	5A	63	64	66	68	69	69	6A	6C	71	77	7A	93	94	95	96	99	A0	A1	A2	A3	A5	A5	AA	AC	B2	B4	B5	B8	BE	C3	CC	CC	D2	EC	EE	F0	F0	F3	F5
2401	1990A	silicon serial number	01														read rom								read rom												match																																	skip					search rom
2411		silicon serial number Vcc input	01																						read rom				ovdr skip																																														search rom
1425	1991	multikey 1153bit secure	02	1152																					read rom					copy scratch							match		write pw			read sub			read scratch									write scratch	write sub															skip					search rom
2404	1994	econoram time chip	04	16*32													write scratch								read rom												match	copy scratch																								read scratch								skip			cond search		search rom	read mem
2405		Addresable Switch	05																						read rom												match																																	skip			cond search		search rom
	1993	4k memory ibutton	06	16*32													write scratch								read rom												match	copy scratch																								read scratch								skip					search rom	read mem
	1992	1k memory ibutton	08	4*32													write scratch								read rom												match	copy scratch																								read scratch								skip					search rom	read mem
2502	1982	1k add-only memory	09	4*32	8												write mem								read rom												match	write status																								read status							CRC read data	skip					search rom	read mem
	1995	16k memory ibutton	0A	64*32													write scratch								read rom				ovdr skip								match	copy scratch						ovdr match																		read scratch								skip					search rom	read mem
2505	1985	16k add-only memory	0B	64*256	16												write mem								read rom												match	write status																							ext read mem	read status								skip					search rom	read mem	speed write	speed write status
	1996	64k memory ibutton	0C	256*32													write scratch								read rom				ovdr skip								match	copy scratch						ovdr match																		read scratch								skip					search rom	read mem
2506	1986	64k add-only memory	0F	256*32													write mem								read rom				ovdr skip								match	write status						ovdr match																	ext read mem	read status								skip					search rom	read mem	speed write	speed write status
18S20	1920	high precision digital thermometer	10		8																				read rom								convert T	copy scratch		write scratch	match			write trim2	copy trim2		read trim2								read trim1	copy trim1	write trim1												power		recall EE	read scratch		skip			cond search		search rom
2406		dual addressable switch plus 1k memory	12	4*32	16												write mem								read rom												match	write status																							ext read mem	read status								skip			cond search		search rom	read mem		channel access
2407		dual addressable switch plus 1k memory	12	4*32	16												write mem								read rom												match	write status																							ext read mem	read status								skip			cond search		search rom	read mem		channel access
2430A	1971	256 eeprom	14	1*32													write scratch								read rom												match	copy scratch	copy/lock			read status													write app							read scratch							read app	skip					search rom	read mem
	1963L	4k Monetary	1A	256*32	16												write scratch								read rom				ovdr skip								match		copy scratch					ovdr match																	read mem+ counter	read scratch								skip					search rom	read mem
2436		battery id/monitor chip	1B	5*32														read scratch	write scratch		sp1->nv1		sp2->nv2	sp3->sram	read rom							lock nv1	unlock nv1				match											nv1->sp1	nv2->sp2	sram->sp3														read reg	convert V	incr	reset			skip		convert T			search rom
28E04-100		4k EEPROM with PIO	1C	4096	16												write scratch								read rom				ovdr skip								match	copy scratch	PIO write					ovdr match																resume	PIO pulse	read scratch							reset latch	skip	write register		cond search		search rom	read mem		PIO read
2423		4k ram with counter	1D	16*256	16												write scratch								read rom				ovdr skip								match		copy scratch					ovdr match																	read mem + counter	read scratch								skip					search rom	read mem
2409		microlan coupler	1F																						read rom	smart-on aux											match		status			all off												discharge							dir-on main									skip	smart-on main				search rom
2450		quad a/d converter	20	4*8	16																				read rom				ovdr skip	convert V							match	write mem						ovdr match																		read mem								skip			cond search		search rom
	1921	Thermachron	21	256*32	16												write scratch								read rom				ovdr skip	clear mem			convert T				match	copy scratch						ovdr match																	CRC read mem	read scratch								skip			cond search		search rom	read mem
1822		Econo Digital Thermometer	22		8																				read rom								convert T	copy scratch		write scratch	match			write trim2	copy trim2		read trim2								read trim1	copy trim1	write trim1												power		recall EE	read scratch		skip			alarm search		search rom
2433		4k eeprom	23	16*32	16												write scratch								read rom				ovdr skip								match	copy scratch						ovdr match																		read scratch								skip					search rom	read mem
2415		time chip	24																						read rom												match					read clock													write clock															skip					search rom
2438		smart battery monitor	26	8*8	8																				read rom								convert T	copy scratch		write scratch	match																												convert V		recall EE	read scratch		skip					search rom
2417		time chip with interrupt	27																						read rom												match					read clock													write clock															skip					search rom
18B20		programmable resolution digital thermometer	28		8																				read rom								convert T	copy scratch		write scratch	match			write trim2	copy trim2		read trim2								read trim1	copy trim1	write trim1												power		recall EE	read scratch		skip			alarm search		search rom
2408		8-channel addressable switch	29																						read rom				ovdr skip								match		write channel					ovdr match																resume									reset latch	skip	write cond		cond search		search rom	read PIO		read channel
2890		digital potentiometer	2C														write pos								read rom				ovdr skip								match	write control						ovdr match											decrement					resume		read control							increment	skip			cond search		search rom	read pos
2431		1k eeprom	2D	4*32	16												write scratch								read rom				ovdr skip								match	copy scratch						ovdr match																resume		read scratch								skip					search rom	read mem
2770		battery monitor and charge controller	2E	256																					read rom			read rom						copy data			match			refresh					read data	lock	write data															swap				start charge	recall data	stop charge		skip					search rom
2760		high-precision li+ battery monitor	30	256																					read rom			read rom						copy data			match								read data	lock	write data															swap					recall data			skip					search rom
2761		high precision li+ battery monitor	30	256																					read rom			read rom						copy data			match								read data	lock	write data															swap					recall data			skip					search rom
2762		high precision li+ battery monitor with alerts	30	256																					read rom			read rom						copy data			match								read data	lock	write data															swap					recall data			skip					search rom
2720		efficient addressable single-cell rechargable lithium protection ic	31	256																					read rom			read rom						copy data			match								read data	lock	write data													resume							recall data			skip					search rom
2432	1961S	1k protected eeprom with SHA-1	33	4*256													write scratch								read rom	compute next			ovdr skip								match	copy scratch	load first					ovdr match																resume	read auth page	read scratch								skip					search rom	read mem
2740		high precision coulomb counter	36	256																					read rom			read rom									match								read data		write data													resume										skip					search rom
	1977	Password protected 32k eeprom	37	512*64	16												write scratch								read rom				ovdr skip								match							ovdr match	pw read mem										pw copy scratch					resume		read scratch							pw verify	skip	version				search rom
2413		dual channel addressable switch	3A																						read rom				ovdr skip								match		PIO read					ovdr match																resume										skip					search rom			PIO write
2422	1922L 1922T 1923	Temperature Logger 8k mem	41	384*32													write scratch								read rom	pw stop mess			ovdr skip								match	convert T						ovdr match	pw read mem									pw clear	pw copy scratch					resume		read scratch								skip	pw start miss		cond search		search rom
2751		multichemistry battery fuel gauge	51	256																					read rom			read rom						copy data			match								read data	lock	write data																				recall data			skip					search rom
	1420	Serial ID Button	81																						read rom												match																																	skip					search rom
2404S		dual port plus time	84	16*32													write scratch								read rom												match	copy scratch																								read scratch								skip			cond search		search rom	read mem
2502-E48 2502-UNW	1982U	48 bit node address chip	89	4*32	8												write mem								read rom												match	write status																								read status							CRC read data	skip					search rom	read mem
2505-UNW	1985U	16k add-only uniqueware	8B	64*256	16												write mem								read rom												match	write status																							ext read mem	read status								skip					search rom	read mem	speed write	speed write status
2506-UNW	1986U	64k add-only uniqueware	8F	256*32													write mem								read rom				ovdr skip								match	write status						ovdr match																	ext read mem	read status								skip					search rom	read mem	speed write	speed write status
LCD		LCD (Swart)	FF					LCD on	LCD off	light off	light on	write reg	copy from reg	write mem	copy from mem					write GPIO out	copy GPIO in	copy GPIO counters			read rom		copy from eeprom	copy to eeprom			copy from version			copy to LCD	clear LCD	write scratch	match																															read scratch		skip			cond search		search rom
28E01-100		1k EEPROM with SHA-1	XX	4*256		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
1821		programmable digital thermostat and thermometer				write TH	write TL									write status					stop T										load counter																									read counter	read TH	read TL				read temp	read status											start T
2223		econoram		256
2224		econoram		256
	1962S	1k protected eeprom SHA-1		150*32	16												write scratch								read rom	compute next			ovdr skip								match	copy scratch	load first					ovdr match															refresh scratch	resume	read auth page	read scratch								skip					search rom	read mem
Device	iButton	Name	Family	Memory	CRC	01	02	03	05	07	08	10	11	12	13	0C	0F	11	17	21	22	23	25	28	33	33	37	39	3C	3C	41	43	44	48	49	4E	55	55	5A	63	64	66	68	69	69	6A	6C	71	77	7A	93	94	95	96	99	A0	A1	A2	A3	A5	A5	AA	AC	B2	B4	B5	B8	BE	C3	CC	CC	D2	EC	EE	F0	F0	F3	F5

$Id: family.html,v 1.22 2005/09/04 23:26:45 alfille Exp $