AT97SC3205T-H3M4420B

Application Specific Microcontrollers Overview

The AT97SC3205T-H3M4420B is a fully integrated security module implementing the Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2 specification. It features an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM storage for RSA keys. The device operates on a 3.3V supply voltage with I2C interface support at 400kHz Fast Mode or 100kHz Standard Mode. It includes FIPS-140-2 certified components such as RNG, HMAC, AES, SHA, and RSA engines, along with 2066 bytes of NV storage for user-defined data.

Application Specific Microcontrollers Feature Summary

• Compliant with TCG TPM Version 1.2 Specification
• Hardware Asymmetric Crypto Engine with FIPS-140-2 certification
• Internal EEPROM Storage for RSA Keys
• I2C Interface supporting 400kHz Fast Mode/100kHz Standard Mode

Application Specific Microcontrollers Applications

• Embedded systems requiring trusted platform module integration
• Hardware physical presence indication
• Secure boot and firmware installation

Application Specific Microcontrollers Procurement Notes

Verify package type availability, as the component is offered in 28-lead Thin TSSOP or 32-pad QFN packages. Confirm operational temperature range requirements against Commercial (0°C to 70°C) and Industrial (-40°C to 85°C) options. Ensure proper decoupling capacitors are placed close to VCC pins for reliable operation.

Application Specific Microcontrollers Selection Notes

Select based on required package format: 28X1 for 28-pin Thin TSSOP or 32M3 for 32-pin Very Thin QFN. Consider temperature range needs; commercial grade covers 0°C to 70°C while industrial grade extends to -40°C to 85°C. Ensure system supports I2C communication speeds up to 400kHz if utilizing fast mode operations.

Application Specific Microcontrollers Part Context

This component belongs to the AT97SC3205T series of Trusted Platform Modules manufactured by Microchip Technology (formerly Atmel). It serves as a single-chip turnkey solution for embedded security applications, providing hardware-based cryptographic functions and secure key storage within a compact footprint suitable for various electronic devices.

Application Specific Microcontrollers Replacement Considerations

Check for updated part numbers from Microchip Technology as Atmel has been acquired. Verify pin compatibility and electrical specifications when substituting with other TPM 1.2 compliant devices. Ensure replacement parts maintain FIPS-140-2 certification if required for your application.