The DS2434 High-Endurance 1-Wire EEPROM with SHA-1 Engine integrates 4Kb of EEPROM, a SHA-1 engine, a 64-bit unique ROM ID and real-time clock with calendar into a single chip. The SHA-1 engine allows the host to verify the EEPROM memory contents without needing to read the entire memory.

Applications:

• Secure Storage
• Sensor Calibration
• Electronic Cash Handles
• Access control
• Medical devices
• Industrial equipment

Features:

• 4Kb EEPROM memory (128 pages of 32 bytes each)
• SHA-1 Engine for Memory Authentication
• Programmable I/O Pins
• Unique 64-Bit ROM ID
• Real-Time Clock (RTC) with Calendar
• 1-Wire Interface for Communication
• Operating temperature range of -40°C to +85°C

Benefits:

• Provides secure memory storage with data integrity verification using SHA-1 authentication.
• Facilitates accurate time-stamping and scheduling with integrated RTC.
• Simplifies system design with a single-wire interface.
• Enhances security and prevents unauthorized access to stored data.

The DS2434 is a versatile chip combining multiple functionalities for secure data logging, authentication, and time-keeping applications. Its robust SHA-1 engine guarantees memory content verification which is critical in many industrial and commercial applications. The device is designed to operate in harsh environments with a wide operating temperature range.