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SHA104-TFLXAUTH
  • SHA104-TFLXAUTH
  • SHA104-TFLXAUTH

SHA104-TFLXAUTH

In Production

The SHA104 TrustFLEXAUTH is a member of the CryptoAuthentication™ product family used in accessory or disposable applications. It's a pre-configured secure authentication IC that comes with the Microchip secure key provisioning service. You don't want the service ? Consider the standard SHA104.The device provides 128-bits of symmetric security. It is 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 symmetric authentication is desired and will perform a MAC operation on the client side (the disposable/accessory). For systems that require protection of the symmetric key also on the host side, the SHA104 should be used in conjunction with the SH...

Microchip Technology SHA104-TFLXAUTH Product Info

16 April 2026 0

Parameters

Algorithm Type

SHA256 MAC

Interface Type

I2C, SWI

Provisioning

TrustFLEX

Standby Typical (uA)

0.13

Features

  • Protected storage for Symmetric Key
  • Hardware Support for MAC Generation
  • 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
  • 384 Bytes User Memory
  • 40 year Data Retention at 55℃
  • 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
  • 400 KHz Fast-mode I2C Interface
  • 125 kbps Pulse Width Modulated (PWM) Single-Wire Serial Interface
  • Voltage Supply Range: 1.65V to 5.5V
  • <130 nA Sleep Current
  • Packaging Options:
  • 8-Pad UDFN (3mm x 3mm), 8-lead SOIC
  • 3-lead Contact (2.5mm x 6.5mm)
  • Trust Platform support with TrustFLEX pre-configuration
  • FIPS CAVP certification : SHA2-256
  • FIPS ESV certification : NRBG Entropy Source, DRBG

    • Description

    The SHA104 TrustFLEXAUTH is a member of the CryptoAuthentication™ product family used in accessory or disposable applications. It's a pre-configured secure authentication IC that comes with the Microchip secure key provisioning service. You don't want the service ? Consider the standard SHA104.


    The device provides 128-bits of symmetric security. It is 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 symmetric authentication is desired and will perform a MAC operation on the client side (the disposable/accessory). For systems that require protection of the symmetric key also on the host side, the SHA104 should be used in conjunction with the SHA105 or other CryptoAuthentication host side devices.

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