ATSHA204A
Overview
- Crypto Element with Protected Hardware-Based Key Storage
- Secure Symmetric Authentication Device Host and Client Operations
- Superior SHA-256 Hash Algorithm with Message Authentication Code (MAC) and Hash-Based Message Authentication Code (HMAC) Options
- Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys
- Guaranteed Unique 72-bit Serial Number
- Internal, High-quality Random Number Generator (RNG)
- 4.5 kb EEPROM for Keys and Data
- 512 bit OTP (One Time Programmable) Bits for Fixed Information
- Multiple I/O Options - UART-compatible High-Speed, Single-Wire Interface - 1 MHz I2C Interface
- 2.0V to 5.5V Supply Voltage Range
