DS1972-F3+ by Analog Devices

iButton 1024-Bit EEPROM


The iButton® 256-bit EEPROM (DS1972) is a 1024-bit, 1-Wire® EEPROM chip in a rugged iButton package. Data is written to an 8-byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The DS1972 communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the device. The registration number is used to address the device in a multidrop, 1-Wire net environment.

Where to Buy

Prices starting from US$1.54

Distributor Stock
Logo for element14 Singapore
element14
from US$6.55
146
in stock
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Logo for Farnell UK
Farnell
from US$5.00
146
in stock
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Logo for Newark
Newark Electronics
from US$1.54
46
in stock
Buy Now
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Features

1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits
Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0")
Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise
IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, typical)
Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C
Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol

Specifications

Technology iButton
End Equipment Asset Management
Memory Type EEPROM
Memory Size 1K bits
Unique Ware No
Real Time Clock No
BudgetaryPrice (See Notes) 3.18

Last 6 months Inventory & Pricing History



DS1972-F3+ Semiconductors - ICs by Analog Devices

MEMORY IBUTTON 1.024KBIT EEPROM

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Memory Size 1024bit
Memory Type EEPROM
Product Range -
MSL -
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History


Alternative Descriptions

MEMORY IBUTTON, 1.024KBIT, EEPROM | element14
Ibutton Memory, 1024Bit, Eeprom | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1972-F3+ ?

Additional datasheets, footprints and schematics for DS1972-F3+ are listed on our Part Details page. You can also find images and similar parts to DS1972-F3+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for DS1972-F3+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DS1972-F3+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the DS1972-F3+ you can contact the distributor directly for product support, shipping queries etc.

Is the DS1972-F3+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1972-F3+ have stock available?

Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for DS1972-F3+ .

How do I check stock and lead times for all distributors?

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