AT97SC3205T-X3A14-20

Application Specific Microcontrollers Overview

The AT97SC3205T-X3A14-20 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. The component operates on a 3.3V supply voltage and includes 2066 bytes of NV storage for user-defined data.

Application Specific Microcontrollers Feature Summary

• Compliant with Trusted Computing Group (TCG) TPM Version 1.2 Specification
• FIPS-140-2 Certified Hardware Crypto Engine (RNG, HMAC, AES, SHA, RSA)
• I2C Interface supporting 400kHz Fast Mode and 100kHz Standard Mode
• Internal EEPROM Storage for RSA Keys and 2066 bytes User Defined Data

Application Specific Microcontrollers Applications

• Embedded systems requiring hardware-based security modules
• Platforms needing FIPS-140-2 certified random number generation
• Devices implementing Trusted Platform Module protocols for authentication

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix against the manufacturer's addendum to confirm package type and temperature range. Confirm availability status as distribution channels may vary. Ensure compatibility with system I2C pull-up requirements, specifically noting recommended values of 800Ω for SM_DAT and 1.5KΩ for SM_CLK at maximum speeds.

Application Specific Microcontrollers Selection Notes

Select this component for applications requiring a turnkey TPM solution with FIPS certification. Choose based on required operating temperature: Commercial (0°C to 70°C) or Industrial (-40°C to 85°C). Ensure the PCB layout accommodates the selected package, either 28-lead Thin TSSOP or 32-pad QFN, and provides adequate decoupling capacitors (2200pF to 4700pF) near VCC pins.

Application Specific Microcontrollers Part Context

The AT97SC3205T series is part of Atmel's (now Microchip Technology) security IC portfolio designed for embedded authentication. It serves as a single-chip solution integrating cryptographic functions with a microcontroller core. This specific model variant utilizes the I2C interface for communication with the host system.

Application Specific Microcontrollers Replacement Considerations

Consult the AT97SC3205T Summary Part Number Selection Guide for alternative packages or temperature grades within the same family. Verify pinout compatibility if substituting with other TPM revisions or interfaces such as SPI variants.