1024-Bit EEPROM iButton

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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

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Revision History

REVISION

NUMBER

REVISION

DATE

DESCRIPTION

PAGES

CHANGED

0

4/06

Initial release

—

1

8/06

UL#913 bullet changed from “Meets UL#93 (4th Edit.). . .(Application Pending)” to

“Designed to meet UL#93 (4th Edit.). . .”

1, 2

Deleted UL#913 bullet from the Common iButton Features section.

1

2

8/09

Changed the RoHS packages to lead(Pb)-free packages in the Ordering Information

table.

1

Changed VTLMIN from 0.46V to 0.5V in the Electrical Characteristics table.

2

In the Absolute Maximum Ratings, changed storage temp to -55°C to +125°C; in the

Electrical Characteristics table, changed VTH, VTL based on VPUP and data retention to

40 years min at 85°C; added note to retention spec: “EEPROM writes can become

nonfunctional after the data-retention time is exceeded. Long-term storage at elevated

temperatures is not recommended; the device can lose its write capability after 10

years at +125°C or 40 years at +85°C.”

2, 3

In the Electrical Characteristics table, changed the VILMAX spec from 0.3V to 0.5V;

removed

from the tW1LMAX spec; added Note 17 to tW0L spec; updated EC table

Notes 17 and 18; corrected Note 20.

2, 3

Added

to Figure 11 Write-Zero Time Slot.

18

Added Package Information table.

22

3

4/10

Created newer template-style data sheet.

All

4

1/12

Updated Note 1 in the Electrical Characteristics section; specified the data memory

default status and added a note that the memory must be programmed to FFh for the

EPROM mode to function to the Memory Access section.

3, 7, 8