AT88SC1616C-SH-T

AT88SCxxxxC is a family of nine high-performance secure memory devices providing 1-Kbit to 256-Kbit of user memory with advanced built-in security and cryptographic features. The memory is divided into 4, 8, or 16 user zones each of which may be individually set with different security access rights or used together to effectively provide space for one or multiple data files. Crypto Memory has a configuration memory which contains registers to define the security rights for each user zone and space for passwords and secret keys used by the security logic of Crypto Memory. Through dynamic, symmetric mutual authentication, data encryption, and the use of encrypted checksums, Crypto Memory provides a secure place for storage of sensitive information within a system. With its tamper protection circuits, this information remains safe even under attack. Crypto Memory also provides high security, low cost, and ease of implementation of host-client type systems without the need for a microprocessor operating system. The embedded cryptographic engine provides for a dynamic, symmetric mutual authentication between the device and host, as well as, performs stream encryption for all data and passwords exchanged between the device and host. Up to four unique key sets are available for these operations.

• A Family of Nine Devices with User Memories from 1-Kbit to 256-Kbit
• EEPROM User Memory
  • 4, 8, or 16 Zones
  • Self-timed Write Cycles
  • Single-byte or Multiple-byte Write Modes
  • Programmable Access Rights for Each Zone
• 2-Kbit Configuration Memory
  • 37-byte OTP Area for User-Defined Codes
  • 160-byte Area for User-Defined Keys and Passwords
• High Security Features
  • 64-bit Mutual Authentication Protocol (Under License of ELVA)
  • Encrypted Checksum
  • Stream Encryption
  • Four Key Sets for Authentication and Encryption
  • Eight Sets of Two 24-bit Passwords
  • Anti-tearing Function
  • Voltage and Frequency Monitor
• Embedded Application Features
  • Low Voltage Operation: 2.7V to 5.5V
  • Secure Nonvolatile Storage for Sensitive System or User Information
  • 2-Wire Serial Interface
  • 1MHz Compatibility for Fast Operation
  • Stan