Microchip SHA105

Cost optimized secure authentication IC

The SHA105 is a member of the CryptoAuthentication product family.

The device provides 128-bits of symmetric security targeted for disposable and ecosystem control applications and is intended to be used as a companion device with Microchip or other vendor’s microcontrollers.

The device can be used in systems where either one-side or mutual authentication is desired. The SHA105 operates as the host side device in systems with mutual authentication. Consider using the SHA104 for the client symmetric key on your disposable or accessory system.

 

Key features

• Cost optimized secure authentication IC
• Symmetric MAC host operations
• Provides 128-bits of symmetric security
• Supports one-way or mutual authentication

 

Additional features

• Protected storage for symmetric key
• Hardware support for CheckMAC validation of client generated MAC
• Internal high-quality NIST SP 800-90A/B/C Random Number Generator (RNG)
• Strong physical protection mechanisms against invasive attacks.
  • Active Shield to protect against invasive attacks
  • Internal memory encryption and scrambling
  • Low and high supply voltage tampers
  • Low and high temperature tampers
     
• Field Programmable EEPROM
  • Single symmetric secret key
  • I/O Protection key
  • 384 Bytes user memory
  • 40 year data retention at 55℃
     
• Monotonic counter with max count value of 10,000
• Unique 72-Bit serial number
• 400 KHz fast-mode I²C Interface
• Voltage supply range: 1.65V to 5.5V
• <130 nA sleep current
• Packaging Options: 8-Pad UDFN (3mm x 3mm), 8-lead SOIC

 

Applications

• Systems with mutual authentication
• Security companion IC for microcontrollers
• E-Mobility battery swapping
• Secure medical consumables
• Printer cartridges

 

ebv content library/npi/2024/microchip-sha105 Microchip SHA105 | EBV Elektronik