AT97SC3204-X1A150

Overview

The AT97SC3204-X1A150 is a security integrated circuit manufactured by Microchip Technology, functioning as a Trusted Platform Module (TPM) compliant with TCG Version 1.2 specifications. It features an AVR RISC microprocessor and a hardware asymmetric crypto engine capable of performing a 2048-bit RSA signature in 200ms. The device communicates via a 33MHz LPC bus and includes a FIPS 140-2 compliant True Random Number Generator. It operates on a 3.3V supply voltage and utilizes a 28-lead Thin TSSOP package.

Feature Summary

• Full TCG TPM Version 1.2 compatibility
• Hardware RSA engine: 2048-bit in 200ms, 1024-bit in 40ms
• SHA-1 accelerator performance of 20µs per 64-byte block
• FIPS 140-2 compliant True Random Number Generator

Applications

• Personal computers requiring platform authentication
• Embedded systems needing secure data storage
• Mobile computers utilizing clock stopping for power savings

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Confirm availability status directly with the manufacturer or authorized distributors, as stock levels fluctuate. Ensure compliance with RoHS standards and lead-free requirements specified for this component series.

Selection Notes

Select based on required operating temperature range, choosing between Commercial (0°C to 70°C) and Industrial (-40°C to +85°C) grades. Verify package footprint compatibility, specifically the 28-lead Thin TSSOP dimensions (4.4 mm x 9.7 mm body). Ensure system design supports the 33MHz LPC interface and 3.3V supply voltage constraints.

Part Context

This component belongs to the AT97SC3204 family of security ICs designed for PC client platforms. It serves as a turnkey solution for OEMs and ODMs, integrating firmware and necessary drivers for BIOS and OS integration. The device provides physical security circuitry and NV storage for user-defined data alongside cryptographic functions.

Replacement Considerations

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