Features

• Consumable Authentication Device
• Superior SHA-256 Hash Algorithm with 256-bit Keys
• 248-byte EEPROM for Configuration, Keys and Data:
  • Data zone: 5 slots of 32 bytes each
  • Configuration zone: 88 bytes for counting, locks and serial number
• Data Zone Features:
  • ParentKey slot
  • DerivedKey slot
  • Three dedicated storage slots
• High-Speed, Single-Wire Interface with Parasitic Power
• On-Die Integrated Bypass Capacitor to Allow for Parasitic Power Operation
• 1,024 Maximum Uses (Device Can Be Configured for a Lesser Amount)
• 2.0V to 4.5V Supply Voltage Range
• <150 nA Sleep Current
• Packaging Solutions:
  • 2-Pad VSFN contact package for mechanical attachment without PCB
  • 8-Pad UDFN for prototyping and early development
  • 4-Ball WLCSP, 2 x 2 Grid with a 0.4 mm ball pitch (contact Microchip Sales for more information)