Features

• Cryptographic Authentication Device with Secure Hardware-Based Key Storage:
  • Protected storage for symmetric key
• Hardware Support for MAC Generation
• Internal High-Quality NIST SP 800-90A/B/C Random Number Generator (RNG)
• Extensive Security Measures Against Attacks
• Strong Physical Protection Mechanisms Against Invasive Attacks
• Field-Programmable EEPROM
  • Single symmetric secret key
  • 384-byte user memory
  • 40-year data retention at +55℃
• Monotonic Counter with Max Count Value of 10,000
  • Counter can be attached to key for limited use
• Unique 72-Bit Serial Number
• Interface Options:

  • 125 kbps Pulse Width Modulated (PWM) Single-Wire Serial Interface
  • 400 KHz fast-mode I²C interface
• Voltage Supply Range: 1.65V to 5.5V
• 130 nA Nominal Sleep Current
• Human Body Model (HBM) ESD: I²C Devices >4 kV; SWI Devices >7 kV
• Packaging Options:

  • 8-pad UDFN (3 mm x 3 mm), 8-lead SOIC
  • 3-lead contact (2.5 mm x 6.5 mm)