DS1990A View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

Manufacturer

DS1990A

Serial Number iButton™

Dallas Semiconductor -> Maxim Integrated 

DS1990A MEMORY MAP Figure 1

8-Bit CRC Code

48-Bit Serial Number

MSB

LSB MSB

LSB

DS1990A

8-Bit Family Code (01h)

MSB

LSB

DS1990A EQUIVALENT CIRCUIT Figure 2

BUS MASTER CIRCUIT Figure 3

To data connection of DS1990A

3 of 10

To data connection

of DS1990A

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