Microchip Technology SHA104 Authentication ICs

Microchip Technology SHA104 Authentication ICs are designed to provide 128 bits of symmetric security targeted for disposable and ecosystem control applications. These authentication ICs are intended to be used as companion devices and are microcontroller/microprocessor agnostic. The SHA104 authentication ICs can be used in systems where the host can assist in the authentication by using a challenge-response pair. For more security, these ICs can also be used with a host-side security device to perform a CheckMAC operation. These authentication ICs can be used with the SHA105 or other Microchip CryptoAuthentication host-side devices. Applications include disposables and accessory authentication, ecosystem control, and anti-cloning.

Features

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℃

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
1.65V to 5.5V Voltage supply range
130nA Nominal sleep current
Human Body Model (HBM) ESD: I²C devices >4 kV; SWI devices >7kV
Packaging options:
- 8-pad UDFN (3mm x 3mm), 8-lead SOIC
- 3-lead contact (2.5mm x 6.5mm)