AT97SC3204-U1A190-1

Overview

The AT97SC3204-U1A190-1 is a security module implementing the Trusted Computing Group (TCG) TPM Version 1.2 specification. It integrates an AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA key storage. The device supports a 33MHz LPC interface with SIRQ and CLKRUN capabilities. Key performance metrics include 200ms for a 2048-bit RSA signature and 40ms for a 1024-bit RSA signature. It features a FIPS 140-2 compliant True Random Number Generator and provides 1280 bytes of NV storage. The component operates on a 3.3V supply voltage.

Feature Summary

• Compliant with TCG TPM Version 1.2 and PC Client Specific TPM Interface Specification Version 1.2
• Hardware Asymmetric Crypto Engine supporting 2048-bit RSA in 200ms and 1024-bit RSA in 40ms
• Integrated AVR RISC Microprocessor with internal EEPROM for secure key storage
• FIPS 140-2 Compliant True Random Number Generator (RNG)
• 33MHz LPC Bus interface with support for SIRQ and CLKRUN

Applications

• Personal computers requiring trusted platform functionality
• Embedded systems needing hardware-based cryptographic acceleration
• Mobile computers utilizing clock stopping for power savings

Procurement Notes

Verify package configuration against the specific suffix requirements. Confirm temperature range specifications match the target application environment. Ensure compatibility with existing BIOS drivers and operating system device software provided by the manufacturer. Review the full datasheet addendum for complete catalog number ordering codes.

Selection Notes

Select based on required interface speed and package type availability. Consider the internal memory management scheme for multiple RSA keys which requires no system intervention. Verify that the 3.3V supply voltage aligns with the system design. Check for necessary manufacturing support software for board assembly initialization.

Part Context

This component belongs to the AT97SC3204 series of Trusted Platform Modules. It serves as a single-chip turnkey solution for OEM and ODM manufacturers. The series includes variants with different package options such as 28-lead Thin TSSOP, Wide TSSOP, and 40-lead QFN. It is designed for integration into PC client platforms.

Replacement Considerations

Consult the Atmel AT97SC3204 datasheet addendum for alternative ordering codes within the same family. Verify pinout compatibility if substituting between different package types like TSSOP and QFN.