AT97SC3204-U2A1A-10

Application Specific Microcontrollers Overview

The AT97SC3204-U2A1A-10 is a Trusted Platform Module (TPM) compliant with TCG TPM version 1.2 and TCG PC Client-specific TPM Interface Specification (TIS) version 1.2. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA keys. The device features a 33MHz LPC bus interface, FIPS 140-2 compliant RNG, and 1756 bytes of NV storage. It operates on a 3.3V supply voltage and supports commercial (0 to 70°C) and industrial (-40 to +85°C) temperature ranges.

Application Specific Microcontrollers Feature Summary

• Fully compliant with TCG TPM v1.2 and TCG PC Client TIS v1.2 specifications
• Hardware crypto engine supporting 2048-bit RSA signature in 200ms and SHA-1 acceleration at 20μs per 64-byte block
• Integrated Atmel AVR RISC microprocessor with internal EEPROM for key storage
• Supports SIRQ and CLKRUN for power savings in mobile computers

Application Specific Microcontrollers Applications

• Personal computer security integration
• Embedded systems requiring trusted platform module functionality
• Mobile computer platforms utilizing LPC interface for clock stopping

Application Specific Microcontrollers Procurement Notes

Verify the specific package type required for the U2A1A suffix against official ordering guides, as the summary datasheet lists 28X1 (thin TSSOP) and 40ML1 (QFN). Confirm availability status directly with Microchip Technology or authorized distributors, as this component may be subject to end-of-life restrictions or limited production runs.

Application Specific Microcontrollers Selection Notes

Select based on operating temperature range requirements, choosing between commercial (0 to 70°C) and industrial (-40 to +85°C) grades. Ensure the host system supports the 33MHz LPC interface and provides necessary pull-ups for I2C/SPI if used for GPIO functions. Verify that the 3.3V supply voltage aligns with the target platform's power rails.

Application Specific Microcontrollers Part Context

The AT97SC3204 series serves as a turnkey security solution for OEMs and ODMs, integrating firmware and drivers for easy implementation. It replaces discrete security components by providing a single-chip TPM solution with hardware-accelerated cryptography and secure key management capabilities for PC client platforms.

Application Specific Microcontrollers Replacement Considerations

Consult Microchip Technology for current equivalent TPM solutions, as the AT97SC3204 series may have been superseded by newer generations such as the AT97SC3205. Verify pin compatibility and software driver support when migrating to alternative TPM devices.