MICROCHIP SHA104-RBVCZ-B

The SHA104 is a member of the CryptoAuthentication product family used in accessory or disposable applications. The device provides 128 bits of symmetric security targeted for disposable and ecosystem control applications, is intended to be used as a companion device and is microcontroller/microprocessor agnostic. The device can be used in systems where either the host can assist in the authentication through the use of a challenge - response pair or, for more security, can be used with a host side security device to perform a CheckMAC operation. The SHA104 can be used in conjunction with the SHA105 or other 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
• Strong Physical Protection Mechanisms Against Invasive Attacks
• Field - Programmable EEPROM – Single symmetric secret key
• 384 - byte user memory – 40 - year data retention at +55 °C
• 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×3 mm), 8 - lead SOIC
  • 3 - lead contact (2.5 mm×6.5 mm)

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