Overview
The DS28E01P-100+T, produced by Analog Devices Inc./Maxim Integrated, is a highly secure and versatile electronic component that combines 1024 bits of EEPROM with advanced challenge-and-response authentication security. This device utilizes the ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1) for robust security features. It is designed to operate over a single-contact 1-Wire bus, following the standard 1-Wire protocol, and is suitable for a wide range of applications requiring secure data storage and authentication.
Key Specifications
| Parameter | Description |
|---|---|
| Memory | 1024 bits of EEPROM, configured as four pages of 256 bits each, with a 64-bit scratchpad |
| Security | Challenge-and-response authentication using ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1) |
| Unique Identifier | 64-bit ROM registration number, factory lasered into the chip |
| Communication | Single-contact 1-Wire bus, following the standard 1-Wire protocol |
| Voltage Range | 2.8V to 5.25V |
| Temperature Range | -40°C to +85°C |
| Package Options | 6-Lead TSOC, TDFN, 2-Lead TO-92, SFN |
| Write Protection | All memory pages can be write protected; one page can be in EPROM-emulation mode |
Key Features
- Advanced Security: Utilizes SHA-1 for challenge-and-response authentication, ensuring high security for data storage and transfer.
- Unique Identifier: Each device has a guaranteed unique 64-bit ROM registration number.
- Flexible Memory Configuration: 1024 bits of EEPROM, with options for write protection and EPROM-emulation mode.
- Robust Communication: Operates over a single-contact 1-Wire bus with switchpoint hysteresis and filtering to optimize performance in noisy environments.
- Wide Operating Range: Supports voltage range from 2.8V to 5.25V and temperature range from -40°C to +85°C.
- Multiple Package Options: Available in 6-Lead TSOC, TDFN, 2-Lead TO-92, and SFN packages.
Applications
- Secure Data Storage: Ideal for applications requiring secure storage of small amounts of data, such as calibration data, system configuration, and intellectual property.
- Authentication Systems: Suitable for use in authentication systems where secure challenge-and-response mechanisms are necessary.
- Industrial Automation: Can be used in industrial automation for secure storage and retrieval of critical system data.
- Medical Devices: Applicable in medical devices where secure data storage and authentication are crucial.
- Automotive Systems: Used in automotive systems for secure storage of vehicle configuration and calibration data.
Q & A
- What is the primary function of the DS28E01P-100+T?
The primary function is to provide secure data storage and authentication using 1024 bits of EEPROM and the SHA-1 algorithm.
- How does the DS28E01P-100+T communicate?
It communicates over a single-contact 1-Wire bus following the standard 1-Wire protocol.
- What is the unique identifier for each DS28E01P-100+T device?
Each device has a guaranteed unique 64-bit ROM registration number.
- What are the voltage and temperature operating ranges for the DS28E01P-100+T?
The voltage range is 2.8V to 5.25V, and the temperature range is -40°C to +85°C.
- Can the memory pages of the DS28E01P-100+T be write protected?
- What types of packages are available for the DS28E01P-100+T?
- How does the SHA-1 engine enhance security in the DS28E01P-100+T?
The SHA-1 engine enables challenge-and-response authentication, providing robust security for data storage and transfer.
- What is the purpose of the scratchpad in the DS28E01P-100+T?
The scratchpad acts as a buffer for writing to the memory, register page, or when installing a new secret.
- Can the DS28E01P-100+T operate in noisy environments?
- What are some typical applications for the DS28E01P-100+T?
