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DS1977 - 32KB EEPROM iButton

General Description

The DS1977 is a 32Kbyte EEPROM in a rugged, iButton enclosure.

Access to the memory can be password-protected with different passwords for readonly and full access.

Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a ground return.

Key Features

  • 32KB EEPROM memory Durable, stainless-steel iButton package Built-in multi-drop controller ensures compatibility with other Dallas Semiconductor 1-Wire net products Unique factory lasered 64-bit registration number assures error free device selection and absolute part identity Supports Overdrive mode Operating range: 2.8V to 5.25V, -40 to +85°C Pin Configuration.

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Datasheet Details

Part number DS1977
Manufacturer Dallas Semiconducotr
File Size 272.14 KB
Description 32KB EEPROM iButton
Datasheet download datasheet DS1977 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com Product Preview DS1977 32KB EEPROM iButton www.maxim-ic.com General Description The DS1977 is a 32Kbyte EEPROM in a rugged, iButton enclosure. Access to the memory can be password-protected with different passwords for readonly and full access. Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a ground return. Every DS1977 is factorylasered with a guaranteed unique 64-bit registration number that allows for absolute trace-ability. The durable stainless steel iButton package is highly resistant to environmental hazards such as dirt and shock. Accessories permit the DS1977 iButton to be mounted on almost any object, including containers, pallets and bags.