The ATSHA206A is a Microchip CryptoAuthentication^TM device primarily dedicated to consumable applications and ecosystem control. The device has five slots and a preassigned configuration that reduces development time and the time-to-market for specific use cases. The ATSHA206A is a true two-wire device that is powered parasitically through the single-wire interface signal. The device comes in a number of custom packaging solutions and has a built-in decoupling capacitor providing an attractive solution for a wide variety of applications where the accessory may or may not require an actual PCB and the space is limited.

For product comparison, please consider: ATSHA204A

• • Consumable Authentication Device
• • 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:
• – Parent key slot
• – Derived key 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. Can be configured for a lesser amount.
• • 2.5V to 4.5V Supply Voltage Range
• • <150 nA Sleep Current
• • Unique 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)