AT97SC3205T-U3A19-AA

Overview

The AT97SC3205T-U3A19-AA is a security integrated circuit implementing the Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2 specification. It provides a single-chip turnkey solution featuring a hardware asymmetric crypto engine, an Atmel AVR RISC microprocessor, and internal EEPROM storage for RSA keys. The device supports I2C communication at 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 operates on a 3.3V supply voltage and offers 2066 bytes of non-volatile user-defined data storage space.

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

Applications

• Embedded systems requiring trusted platform module integration
• Hardware physical presence indication via GPIO
• Secure key generation and management using RNG and crypto engines

Procurement Notes

Verify the specific ordering suffix U3A19-AA against official Microchip Technology documentation to confirm package type and temperature range. Confirm availability status as this part may be subject to limited supply or end-of-life conditions. Ensure compatibility with system power requirements and I2C pull-up configurations before procurement.

Selection Notes

Select the AT97SC3205T-U3A19-AA when a TCG TPM 1.2 compliant solution with I2C interface is required. Consider the 28-lead Thin TSSOP or 32-pad QFN package options based on board space constraints. Verify that the commercial or industrial temperature range meets the operational environment requirements. Ensure the host system can support the 3.3V supply voltage and appropriate decoupling capacitor placement.

Part Context

The AT97SC3205T series is a family of Trusted Platform Modules developed by Atmel Corporation, which was acquired by Microchip Technology. This specific model integrates security functions into a compact footprint suitable for embedded applications. The 'U3A19-AA' suffix denotes specific manufacturing or packaging variations within the broader AT97SC3205T product line.

Replacement Considerations

Consult Microchip Technology's official cross-reference tools or datasheet addendums for verified substitute part numbers. Ensure any replacement maintains TCG TPM 1.2 compliance and compatible I2C interface specifications.