DS28E07+T

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DS28E07+T

IC EEPROM 1KBIT 1-WIRE TO92-3

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Specifications

Supplier Analog Devices Inc./Maxim Integrated
Package Tape & Reel (TR)
ProductStatus Active
MemoryType Non-Volatile
MemoryFormat EEPROM
Technology EEPROM
MemorySize 1Kb (256 x 4)
MemoryInterface 1-Wire®
AccessTime 2 µs
Voltage-Supply 3V ~ 5.25V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Through Hole
Package/Case TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Overview

Description

DS28E07 is a 1-Wire secure memory device with built-in cryptographic capabilities for authentication and protected data storage. It provides a cryptographic challenge/response engine, unique device ID, and read/write-protected memory regions, allowing a host to prove its identity and securely access data without exposing keys. It uses the 1-Wire interface and is suitable for lightweight, single-wire security in embedded systems.
DS28E07+T is the tamper-resistant variant. In addition to all DS28E07 features, the +T version adds anti-tamper protection and tamper-detection capabilities to help prevent key extraction or unauthorized data modification. This typically includes tamper-detect signals or flags and enhanced protection against physical or side-channel attacks.
Typical applications: product authentication and anti-counterfeiting, secure key storage for embedded systems, licensing and asset tracking.
Interface: 1-Wire compatible (works with DS2480B/DS2482 bridges or host MCUs with 1-Wire support).

Features

DS28E07+T is a 1-Wire cryptographic authenticator. Key features include:
- 1-Wire interface with standard ROM and function commands for easy integration.
- On-chip ECC (ECDSA) signing engine with a permanently burned private key; supports digital signatures and device identity verification.
- Certificate storage and PKI support for trust chaining; host can verify against the device public key/cert.
- Challenge–response mutual authentication to prove device identity to a host.
- Secure nonvolatile memory with partitioned, lockable data zones and read/write protections.
- Tamper-resistant security architecture with protection of keys and sensitive data.
- Hashing capability (SHA-256) for data integrity and authentication workflows.
- Low-power operation and suitability for industrial/automotive temperature ranges.
- Available in compact 8-pin packages, common for secure authentication and anti-counterfeit applications.
Applications: product authentication, secure boot/licensing, digital signing, and anti-counterfeiting.

Package

Package type: 8‑pin SOIC (surface‑mount) package; the +T suffix indicates Tape‑and‑Reel packaging.

Pinout

- Pin count: 8 pins (8‑pin package).
- Function: 1‑Wire cryptographic secure element (authenticator) with on‑chip keys for challenge/response authentication and secure memory; used to authenticate devices on a 1‑Wire network. The +T suffix typically denotes Tape & Reel packaging.

Manufacturer

- Manufacturer: Maxim Integrated (now part of Analog Devices).
- Company type: American multinational semiconductor company that designs and manufactures analog and mixed-signal integrated circuits, including security/authentication ICs. Acquired by Analog Devices in 2021.

Application

Secure key storage and cryptographic functions over 1-Wire for OEM devices. Applications include device authentication and anti-counterfeiting, secure boot and firmware update authorization, encryption/signature verification, mutual authentication in IoT/industrial sensors, and supply-chain traceability (automotive, medical, access control).

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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