AT97SC3204T-U2MB-00

Overview

The AT97SC3204T-U2MB-00 is a security module implementing the Trusted Computing Group (TCG) Trusted Platform Module (TPM) version 1.2 specification. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA key storage. The device communicates via a 33MHz Low Pin Count (LPC) bus and includes a FIPS 140-2 compliant Random Number Generator. It operates on a 3.3V supply voltage and supports SIRQ and CLKRUN signals for mobile power management.

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
• Internal EEPROM storage for RSA keys and 1756 bytes of user-defined NV data
• Integrated high-quality Random Number Generator (RNG) compliant with FIPS 140-2

Applications

• Personal computers requiring TPM integration
• Embedded systems needing secure authentication
• Mobile computers utilizing LPC clock stopping features

Procurement Notes

Verify package availability as the component is offered in multiple form factors including 28-lead thin TSSOP and 40-pad QFN. Confirm temperature range requirements against commercial (0 to 70°C) or industrial (-40 to +85°C) ratings before ordering. Ensure compatibility with existing BIOS drivers and operating system device software provided by the manufacturer.

Selection Notes

Select based on required interface speed and physical footprint constraints. The LPC interface operates at up to 33MHz. Consider thermal performance if deploying in environments exceeding standard commercial limits. Verify that the target system supports the specific TPM 1.2 protocol and TCG PC Client-Specific Interface Specification.

Part Context

This component belongs to the AT97SC3204 series of Trusted Platform Modules manufactured by Microchip Technology (formerly Atmel). The series provides turnkey security solutions for OEMs and ODMs, integrating firmware directly onto the chip to simplify board assembly and verification processes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer channels for current equivalent listings or updated family members.