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Active: In Production.

Data Sheet

ABRIDGED DATA SHEET (PDF, 176kB) Download Request Full Data Sheet

Description

ABRIDGED DATA SHEET (PDF, 176kB) Download Request Full Data Sheet The DS28E01-100 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1). The 1024-bit EEPROM array is configured as four pages of 256 bits with a 64-bit scratchpad to perform write operations. All memory pages can be write protected, and one page can be put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. Each DS28E01-100 has its own guaranteed unique 64-bit ROM registration number that is factory lasered into the chip. The DS28E01-100 communicates over the single-contact 1-Wire® bus. The communication follows the standard 1-Wire protocol with the registration number acting as the node address in the case of a multidevice 1-Wire network.

Key Features		Applications/Uses
1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits On-Chip 512-Bit SHA-1 Engine to Compute 160-Bit Message Authentication Codes (MAC) and to Generate Secrets Write Access Requires Knowledge of the Secret and the Capability of Computing and Transmitting a 160-Bit MAC as Authorization User-Programmable Page Write Protection for Page 0, Page 3, or All Four Pages Together User-Programmable OTP EPROM Emulation Mode for Page 1 ("Write to 0") Communicates to Host with a Single Digital Signal at 15.3kbps or 125kbps Using 1-Wire Protocol Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C 6-Lead TSOC and TDFN or 2-Lead SFN Packages		Accessory/PCB Identification Identification and authentication of consumables Ink and Toner Print Cartridge Identification Intellectual Property, License Management Sensor Calibration and Authentication System Programmable Feature Control

Application Notes

Application Note 1098: White Paper 3: Why are 1-Wire SHA-1 Devices Secure? - DS28E01-100 Application Note 1099: White Paper 4: Glossary of 1-Wire SHA-1 Terms - DS28E01-100 Application Note 1201: White Paper 8: 1-Wire® SHA-1 Overview - DS28E01-100 Application Note 3522: White Paper 9: Are SHA-1 Devices Still Secure Enough? - DS28E01-100 Application Note 3675: Protecting the R&D Investment—Two-Way Authentication and Secure Soft-Feature Settings - DS28E01-100 Application Note 3826: Xilinx® FPGA IFF Copy Protection with 1-Wire SHA-1 Secure Memories - ds28e01-100 Application Note 3989: Add Control, Memory, Security, and Mixed-Signal Functions with a Single Contact - DS28E01-100 Application Note 4132: Attachment Methods for the Electro-Mechanical SFN Package - DS28E01-100 Application Note 4255: How to Power the Extended Features of 1-Wire® Devices - DS28E01-100 Application Note 4477: Reference Design of a 1-Wire® Bidirectional Voltage-Level Translator for 1.8V to 5V - DS28E01-100 Application Note 4478: How to Implement SHA-1 Based Secure Authentication and System Feature Settings - DS28E01-100 Application Note 4594: Protect Your FPGA Against Piracy: Cost-Effective Authentication Scheme Protects IP in SRAM-Based FPGA Designs - DS28E01-100

Reliability Reports

Request Reliability Report for: DS28E01-100

Software/Models

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Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-5 of 5

DS28E01-100	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS28E01G-100+T&R			Active	SFN;2 pin;0 mm² Outline Drawing: 21-0390 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: G266N+1*	-40°C to +85°C	See data sheet
DS28E01G-100+U			Active	SFN;2 pin;0 mm² Outline Drawing: 21-0390 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: G266N+1*	-40°C to +85°C	See data sheet
DS28E01Q-100+T&R			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS28E01P-100+T			Active	TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS28E01P-100+			Active	TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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