DS1963S-F5+ by Analog Devices

iButton Monetary Device with SHA-1 Function

Status: Active
Series: DS1963S
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The iButton® monetary device (DS1963S) with SHA-1 Function is a rugged 4kbit read/write data carrier that can be easily accessed with minimal hardware. Its NV memory acts as a localized database for public as well as protected data belonging to the owner of the device and the environment in which it is used. An integrated 512-bit SHA-1 engine can be activated to compute 160-bit message authentication codes (MAC) based on information stored in the device. Data is transferred serially via the 1-Wire® protocol, which requires only a single data lead and a ground return. Using the TMEX™ file format (see Application Note 114) a single DS1963S can serve up to four independent applications, such as secure change purses for electronic payment at local transit systems, pay phones, parking systems or vending machines. The DS1963S is also intended to function as a coprocessor that assists the host in computing signatures, using a secure signing secret, when writing back the new balance to a roaming device after a purchase. The DS1963S, like other SRAM-based iButton devices, has an additional memory area called the scratchpad that acts as a buffer when writing to the main memory. The DS1963's scratchpad is also used for feeding data segments to the SHA-1 engine or receiving/comparing message authentication codes. Data is first written to the scratchpad from where it can be read back. After the data has been verified, a copy scratchpad command will transfer the data to main memory. This process ensures data integrity in an environment that does not provide a reliable electric contact. Each DS1963S has its own 64-bit ROM registration number that is factory lasered into the chip inside to provide a guaranteed unique identity for absolute traceability. The durable MicroCan package is highly resistant to environmental hazards such as dirt, moisture, and shock. Its compact coin-shaped profile is self-aligning with mating receptacles, allowing the DS1963S to be easily used by human operators. Accessories permit the DS1963S to be mounted on almost any surface including plastic key fobs, photo-ID badges and printed circuit boards.

Where to Buy

Prices starting from US$13.09

Distributor Stock
Logo for element14 Singapore
element14
from US$15.45
118
in stock
 Buy Now
Logo for Farnell UK
Farnell
from US$13.09
118
in stock
 Buy Now
Logo for Newark
Newark Electronics
-
0
in stock
 Buy Now
Buy Now

Features

4096 bits of read/write nonvolatile (NV) memory organized as 16 pages of 256 bits each
Eight memory pages with individual 64-bit secrets and 32-bit read-only nonrolling-over page write-cycle counters
Secrets are write-only and have their own individual write-cycle counters
On-chip 512-bit SHA-1 (FIPS 180-1, ISO/IEC 10118-3) engine to compute a 160-bit Message Authentication Codes (MAC) and generate page secrets
Device can operate as a roaming iButton device or as coprocessor for a host computer
256-bit scratchpad ensures integrity of data transfer
On-chip 16-bit CRC generator for safeguarding data transfers
Overdrive mode boosts communication speed to 125kbps
Operating temperature range from -40°C to +85°C
Over 10 years of data retention
Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester) assures absolute traceability because no two parts are alike
Multidrop controller for MicroLAN
Digital identification and information by momentary contact
Chip-based data carrier compactly stores information
Data can be accessed while affixed to object
Economically communicates to host with a single digital signal at 15.4kbps
Standard 16mm diameter and 1-Wire protocol ensure compatibility with iButton family of devices

Specifications

Technology iButton
End Equipment Electronic Access ControleCash
Memory Type NV SRAM
Memory Size 4K bits
Security Features SHA-1Secure CoprocessorWrite Cycle CountersWrite-Only Secrets
Unique Ware No
Real Time Clock No
BudgetaryPrice (See Notes) 7.41

Last 6 months Inventory & Pricing History

DS1963S-F5+ Semiconductors - ICs by Analog Devices

IBUTTON 4KBIT NV SRAM CAN

Semiconductors - ICs
> Memory
> iButtons & Accessories
> iButtons
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Memory Size 4Kbit
Memory Type SRAM
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC 1 2-dimethoxyethane ethylene glycol dimethyl ether (EGDME) (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

IBUTTON, 4KBIT, NV SRAM, CAN | element14
Ibutton, 4Kbit, Nv Sram, Can | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1963S-F5+ ?

Additional datasheets, footprints and schematics for DS1963S-F5+ are listed on our Part Details page. You can also find images and similar parts to DS1963S-F5+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for DS1963S-F5+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DS1963S-F5+ 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 DS1963S-F5+ you can contact the distributor directly for product support, shipping queries etc.

Is the DS1963S-F5+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1963S-F5+ have stock available?

Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for DS1963S-F5+ .

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

Stock availability and lead times will be displayed for DS1963S-F5+ often in real-time on the comparison pages.

What if I can't find stock of DS1963S-F5+ ?

You can fill out our help required form which you can use to request a quote for DS1963S-F5+ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.