AT97SC3204-X2MA-00

Overview

The AT97SC3204-X2MA-00 is a security module implementing the Trusted Computing Group (TCG) TPM version 1.2 specification via a Low Pin Count (LPC) interface. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA key storage. The device supports a 33MHz LPC bus with SIRQ and CLKRUN capabilities for power management in mobile systems. It includes a FIPS 140-2 compliant Random Number Generator and provides 1756 bytes of NV user data storage. Operating on a 3.3V supply, it is available in commercial and industrial temperature ranges.

Feature Summary

• Compliant with TCG TPM Version 1.2 and TIS Version 1.2 specifications
• Hardware asymmetric crypto engine supporting 2048-bit RSA signatures in 200ms
• Integrated Atmel AVR RISC microprocessor with internal EEPROM for key storage
• FIPS 140-2 compliant internal high-quality Random Number Generator (RNG)

Applications

• Personal computer security integration
• Embedded system authentication
• Mobile computer platforms requiring clock stopping support

Procurement Notes

Verify package availability as the component may be discontinued or subject to limited supply. Confirm that the specific ordering suffix corresponds to the required package type and temperature range before procurement. Check current distributor status for lead times and stock levels.

Selection Notes

Select this component for applications requiring TCG TPM 1.2 compliance with an LPC interface. Ensure the design accommodates the 3.3V supply voltage and supports the 33MHz LPC bus speed. Verify that the chosen package variant matches the PCB layout constraints and thermal requirements.

Part Context

This part belongs to the AT97SC3204 family of Trusted Platform Modules. It serves as a single-chip turnkey solution for OEMs and ODMs, providing integrated firmware and hardware security features. The device is designed to replace discrete security components by consolidating cryptographic functions into a single package.

Replacement Considerations

Direct replacements must maintain TCG TPM 1.2 LPC compatibility. Consider variants within the AT97SC3204 series offering different packages (e.g., QFN vs. TSSOP) if form factor changes are acceptable. Verify firmware compatibility when substituting with other TPM models.