DS2430A - 256-bit 1-wire EEPROM, 256-bit EEPROM ibutton

NAME  SYNOPSIS  FAMILY CODE  SPECIAL PROPERTIES  application  status  memory  STANDARD PROPERTIES  ALARMS  DESCRIPTION  DS2430A  ADDRESSING  DATASHEET  SEE ALSO  AVAILABILITY  AUTHOR 

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NAME

DS2430A, DS1971 − 256-bit 1-wire EEPROM, 256-bit EEPROM ibutton

SYNOPSIS

EEPROM

14 [.]XXXXXXXXXXXX[XX][/[ application | status | memory | ]]

FAMILY CODE

14

SPECIAL PROPERTIES

application

read-write, binary
8 bytes of data. Write once, then status is 0xFC and further writing is impossible.

status

read-only, unsigned integer
Is the application area locked?

	0xFF		Application area untouched
	0xFC		Applcation area locked

memory

read-write, binary
32 bytes of data. (256 bits)

STANDARD PROPERTIES

ALARMS

None.

DESCRIPTION

DS2430A

The DS2430A (3) is a memory 1-wire chip. It is considered obsolete and newer designs are supposed to use the DS2431 (3)

The DS1971 (3) is an iButton version of the same device.

ADDRESSING

DATASHEET

http://pdfserv.maxim-ic.com/en/ds/DS2430A-DS2430AP.pdf

SEE ALSO

AVAILABILITY

http://www.owfs.org

AUTHOR

Paul Alfille ([email protected])

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