AT97SC3205T-X3A1C20B

Application Specific Microcontrollers Overview

The AT97SC3205T-X3A1C20B is a security integrated circuit implementing the Trusted Computing Group (TCG) 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 at 3.3V with I2C communication supporting 400kHz Fast Mode or 100kHz Standard Mode. It includes a FIPS-140-2 certified high-quality Random Number Generator (RNG), HMAC, AES, SHA, and RSA engines. The component provides 2066 bytes of NV storage for user-defined data and is available in 28-lead Thin TSSOP or 32-pad QFN packages.

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 Operation: 400kHz Fast Mode / 100kHz Standard Mode

Application Specific Microcontrollers Applications

• Embedded systems requiring trusted platform module integration
• Hardware physical presence indication via PP/GPIO pin
• Low-power sleep recovery applications using TWI_Wakeup# pin

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix against the complete catalog number ordering code addendum to confirm package type and operational range. Confirm availability status as distribution channels may vary. Ensure compliance with RoHS and lead-free requirements specified for the product line.

Application Specific Microcontrollers Selection Notes

Select the appropriate package based on board space constraints: 28-lead Thin TSSOP (4.4mm x 9.7mm) or 32-pad QFN (4.0mm x 4.0mm). Choose the temperature range variant (Commercial 0°C to 70°C or Industrial -40°C to 85°C) according to environmental conditions. Ensure I2C pull-up values are compatible with the 400kHz operation speed.

Application Specific Microcontrollers Part Context

The AT97SC3205T series is a fully integrated security module designed for embedded systems. It implements version 1.2 of the Trusted Computing Group (TCG) specification for Trusted Platform Modules (TPM). The device uses a dynamic internal memory management scheme to store multiple RSA keys without system intervention.

Application Specific Microcontrollers Replacement Considerations

Consult the AT97SC3205T datasheet addendum for the complete catalog number ordering code to identify equivalent variants with different packages or temperature ranges.