SHA-1/HMAC BASED SECURITY AND AUTHENTICATION 1С WITH SDQ INTERFACE
FEATURES
• Provides Authentication of Battery Packs Through SHA-1 Engine Based HMAC
• 160 Bytes OTP, 16 Bytes EEPROM
• Internal Time-Base Eliminates External Crystal Oscillator
• Low Power Operating Modes:
- Active: < 50 uA
- Sleep: 8 uA Typical
• Single-Wire SDQ Interface
• Powers Directly From the Communication Bus
• 6 Lead SON Package
APPLICATIONS
• Cellular Phones
• PDA and Smart Phones
• MP3 Players
• Digital Cameras
• Internet Appliances
• Handheld Devices