DS1992 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

DS1992

1Kb/4Kb Memory iButton

Maxim Integrated 

REVISION HISTORY

REVISION

DATE

DESCRIPTION

7/08

Updated the F5 MicroCan face brand with the latest per PCN H020201.

10/08

8/09

4/11

Change the last sentence of the Parasite Power section to “The

advantages of parasite power are two-fold: 1) by parasiting off this

input, battery power is not consumed for 1-Wire ROM function

commands, and 2) if the battery is exhausted for any reason, the ROM

may still be read normally. The remaining circuitry of the DS1992 and

DS1993 is solely operated by battery energy.”

In the DC Electrical Characteristics section, relocated VPUP from the

header to the EC table, changed VILMAX from 0.8V to 0.3V, and

removed the VOH parameter for the 1-Wire pin.

Updated the part numbers in the Ordering Information table to indicate

a lead(Pb)-free/RoHS compliant product.

Updated the UL certificate reference in the Common iButton Features

and Physical Specifications sections; added the Package Information

section.

DS1992/DS1993

PAGES

CHANGED

1

2

15

1

1, 15, 16

17 of 17

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim

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

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2011 Maxim Integrated Products

Maxim is a registered trademark of Maxim Integrated Products, Inc.

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