DS28E07+T

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DS28E07+T

IC EEPROM 1KBIT 1-WIRE TO92-3

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Spécifications

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

Vue d'ensemble

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).

Expédition

Méthodes d'expéditionNous

offrir des services d'expédition mondiaux par DHL, FedEx, TNT, UPS ou tout autre expéditeur de votre choix.


Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

Payment Methods

Le terme de paiement est 100% prépayé.

Actuellement, nous n'acceptons que les méthodes de paiement ci-dessous:

1. PayPal

2. Carte de crédit/débit

3. Transfert bancaire

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