AT97SC3205T-U3A14-20

Overview

The AT97SC3205T-U3A14-20 is a Trusted Platform Module (TPM) compliant with the TCG TPM Version 1.2 specification. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA keys. The device supports I2C communication at 400kHz Fast Mode or 100kHz Standard Mode. It features FIPS-140-2 certification for its RNG, HMAC, AES, SHA, and RSA engines. Operating on a 3.3V supply, it provides 2066 bytes of NV storage for user-defined data. The component is available in 28-lead Thin TSSOP or 32-pad QFN packages.

Feature Summary

• Compliant with Trusted Computing Group (TCG) TPM Version 1.2 Specification
• FIPS-140-2 Certified Hardware Crypto Engine including RNG, HMAC, AES, SHA, and RSA
• Integrated Atmel AVR RISC Microprocessor with Internal EEPROM Storage
• I2C Interface supporting 400kHz Fast Mode and 100kHz Standard Mode

Applications

• Embedded systems requiring hardware-based security modules
• Secure boot and platform authentication implementations
• Data protection applications utilizing TPM NV storage

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current catalog to confirm package type and temperature range. Confirm availability status as product lifecycles may change. Ensure compatibility with system voltage requirements of 3.3V and interface protocols before procurement.

Selection Notes

Select the appropriate package based on board space constraints: 28-lead Thin TSSOP or 32-pad QFN. Verify operational temperature range requirements, choosing between Commercial (0°C to 70°C) or Industrial (-40°C to 85°C) variants. Ensure the host system supports the required I2C clock speeds and pull-up resistor values for stable communication.

Part Context

The AT97SC3205T series is part of Atmel's (now Microchip Technology) portfolio of security integrated circuits. This specific model implements the TPM 1.2 standard using an AVR core. It serves as a turnkey solution for embedding cryptographic capabilities into embedded devices without requiring external secure elements.

Replacement Considerations

Consult the AT97SC3205T Summary Part Number Selection Guide for verified alternative part numbers within the same family that may offer different packages or temperature ratings.