AT97SC3204-X2A16-10

Overview

The AT97SC3204-X2A16-10 is a Trusted Platform Module (TPM) compliant with TCG TPM version 1.2 and TIS version 1.2 specifications. It integrates an AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA key storage. The device communicates via a 33MHz LPC bus and includes a FIPS 140-2 compliant RNG. It supports SIRQ and CLKRUN for power management in mobile systems. Operating at 3.3V, it provides NV storage for user-defined data and is available in commercial and industrial temperature ranges.

Feature Summary

• Fully compliant with TCG TPM 1.2 and TIS 1.2 specifications
• Hardware crypto engine supporting 2048-bit RSA signature in 200ms
• Integrated AVR 8-bit RISC CPU with internal EEPROM and SRAM
• FIPS 140-2 compliant Random Number Generator (RNG)
• Supports SIRQ and CLKRUN for mobile PC power savings

Applications

• Personal computer security modules
• Embedded systems requiring hardware-based authentication
• Mobile computers utilizing LPC interface for power efficiency

Procurement Notes

Verify the specific ordering suffix against the manufacturer's addendum to confirm package type and temperature range. The summary datasheet indicates that complete catalog number details require consulting the full datasheet addendum. Ensure compatibility with the target system's LPC interface requirements and 3.3V supply voltage constraints before procurement.

Selection Notes

Select this component for applications requiring TCG TPM 1.2 compliance with an LPC interface. Consider the 28-lead thin TSSOP or 40-pad QFN packages based on board space. Verify if the industrial temperature range (-40°C to +85°C) is required over the commercial range (0°C to 70°C). Ensure the host system supports the 33MHz LPC clock and associated control signals like LRESET# and SERIRQ.

Part Context

The AT97SC3204 series serves as a turnkey security solution for OEMs and ODMs, integrating firmware directly onto the chip. It replaces discrete cryptographic components by combining the TPM logic, crypto accelerator, and microprocessor into a single package. The device is designed for easy integration into PC platforms through standard BIOS drivers and OS device drivers provided by the manufacturer.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult the manufacturer's current product selection guide for equivalent TPM devices with updated specifications or interfaces.