AT97SC3205T-G3M4410B

Overview

The AT97SC3205T-G3M4410B is a Trusted Platform Module (TPM) compliant with TCG TPM Version 1.2 and TIS Version 1.3 specifications. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA key storage. The device operates on a 3.3V supply and supports I2C communication at 100kHz Standard Mode or 400kHz Fast Mode. It includes FIPS-140-2 certified components such as a high-quality Random Number Generator (RNG), HMAC, AES, SHA, and RSA engines. The component provides 2066 bytes of non-volatile user-defined data storage and is available in commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges.

Feature Summary

• Compliant with TCG TPM Version 1.2 and TIS Version 1.3 specifications
• Integrated Atmel AVR RISC Microprocessor with hardware asymmetric crypto engine
• FIPS-140-2 Module Certified RNG, HMAC, AES, SHA, and RSA engines
• I2C Interface supporting 100kHz Standard Mode and 400kHz Fast Mode

Applications

• Embedded systems requiring hardware-based security authentication
• PC Client-Specific TPM implementations
• Secure storage for RSA keys and cryptographic operations

Procurement Notes

Verify the specific package type required for the application, as the AT97SC3205T series is offered in both 28-lead Thin TSSOP and 32-pad QFN packages. Confirm that the ordering suffix corresponds to the desired operational temperature range, either Commercial (0°C to 70°C) or Industrial (-40°C to 85°C). Ensure compatibility with the system's I2C pull-up requirements for stable operation at 400kHz.

Selection Notes

Select the AT97SC3205T variant based on the required operating temperature range and physical footprint constraints. The device requires a 3.3V supply voltage and benefits from decoupling capacitors (2200pF to 4700pF) placed close to VCC pins. Consider the I2C bus speed limitations and ensure appropriate pull-up resistor values are used for SM_DAT and SM_CLK lines to maintain signal integrity at higher frequencies.

Part Context

The AT97SC3205T is part of the AT97SC3205 family of Trusted Platform Modules manufactured by Microchip Technology (formerly Atmel). This family provides single-chip turnkey solutions for implementing TPM functionality in embedded systems. The device serves as a secure cryptoprocessor, offering hardware-accelerated cryptographic functions and secure key storage to protect sensitive data and authenticate system integrity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.