AT97SC3204-DX2A12-10

Overview

The AT97SC3204-DX2A12-10 is a security module implementing the Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2 specification. It integrates an AVR RISC microprocessor, hardware asymmetric crypto engine, and True Random Number Generator (RNG). The device supports 2048-bit RSA signing in 200ms and 1024-bit RSA signing in 40ms via a 33MHz LPC interface. It features internal EEPROM for key storage and NV storage for 1280 bytes of user data. Operating at 3.3V, it is available in commercial and industrial temperature ranges.

Feature Summary

• Full TCG TPM Version 1.2 compatibility with PC Client Specific Interface Specification
• Hardware crypto engine performing 2048-bit RSA sign in 200ms and SHA-1 acceleration at 20µs per 64-byte block
• Integrated RNG compliant with FIPS 140-2 standards
• Dynamic internal memory management for multiple RSA keys without system intervention

Applications

• Personal computer security platforms
• Embedded systems requiring hardware authentication
• Mobile computers utilizing clock stopping for power savings

Procurement Notes

Verify package type against ordering codes: 28A2 for Thin TSSOP, 28A3 for TSSOP, or 40ML1 for QFN. Confirm operating temperature range requirements match Commercial (0°C to 70°C) or Industrial (-40°C to 85°C) specifications before procurement.

Selection Notes

Select based on required package footprint and thermal environment. Ensure LPC interface signals including LRESET#, LFRAME#, and SERIRQ are supported by the host platform. Verify BIOS driver availability for the target operating system integration.

Part Context

Manufactured originally by Atmel Corporation, now part of Microchip Technology. The component serves as a turnkey solution for OEMs and ODMs, providing integrated firmware and necessary device drivers for board assembly verification and initialization.

Replacement Considerations

Consult the Atmel AT97SC3204 datasheet addendum for the complete catalog number ordering code to identify equivalent variants within the same family.