Microchip Technology SHA106 CryptoAuthentication™ Devices

Microchip Technology SHA106 CryptoAuthentication™ Devices are ideal for accessory or disposable application use. The SHA106 is a parasitically-powered Single-Wire Interface (SWI) variation of the SHA104. The SHA106 offers 128-bits of symmetric security intended for disposable and ecosystem control applications, is designed to be used as a companion device, and is microcontroller/microprocessor agnostic.

The Microchip SHA106 CryptoAuthentication can be utilized in systems where either the host can assist in the authentication via the use of a challenge-response pair or, for more security, can be operated with a host-side security device to perform a CheckMAC operation. The SHA106 can be used with the SHA105 or other Microchip CryptoAuthentication host-side devices.


  • 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
  • Field-Programmable EEPROM
    • Single symmetric secret key
    • 384-byte user memory
    • 40-year data retention at +55℃
  • Strong physical protection mechanisms against invasive attacks
  • Monotonic counter with a maximum count value of 10,000, the counter can be attached to the key for limited use
  • Unique 72-bit serial number
  • 125kbps Pulse Width Modulated (PWM) SWI
  • Parasitically powered through SIO signal with a 2.5V to 5.5V input range
  • 130nA nominal sleep current
  • >7kV Human Body Model (HBM) ESD
  • 2-Lead VSFN (2.0mm x 2.35mm) contact package


  • Disposables and accessory authentication
  • Ecosystem control
  • Anti-cloning

Pin Configuration

Microchip Technology SHA106 CryptoAuthentication™ Devices
Published: 2023-09-13 | Updated: 2023-09-18