AT97SC3204T-U2MB-10

Overview

The AT97SC3204T-U2MB-10 is a security module implementing the Trusted Computing Group (TCG) TPM version 1.2 specification. It features an Atmel AVR RISC microprocessor and a hardware asymmetric crypto engine capable of computing a 2048-bit RSA signature in 200ms and a 1024-bit RSA signature in 40ms. The SHA-1 accelerator processes 64-byte blocks in 20μs. Communication occurs via a 33MHz Low Pin Count (LPC) bus, supporting SIRQ and CLKRUN for power management. The device includes internal EEPROM storage for RSA keys and 1756 bytes of user-defined NV storage.

Feature Summary

• Compliant with TCG TPM Version 1.2 and TCG PC Client-Specific TPM Interface Specification (TIS) Version 1.2
• Hardware asymmetric crypto engine with integrated RNG (FIPS 140-2 compliant)
• Internal EEPROM storage for RSA keys and 1756 bytes of user-defined data
• 33MHz LPC interface with SIRQ and CLKRUN support

Applications

• Personal computers
• Embedded systems requiring hardware-based security
• Mobile computers utilizing clock stopping for power savings

Procurement Notes

Verify the specific package configuration against the datasheet addendum, as ordering codes determine physical attributes. Confirm that the component meets the required operating temperature range for the target application environment. Ensure BIOS drivers and OS device drivers are available for integration into the system architecture.

Selection Notes

Select based on the required operating temperature range, as the device is offered in commercial (0°C to 70°C) and industrial (-40°C to +85°C) grades. Choose the appropriate package type, such as the 28-lead thin TSSOP or 40-pad QFN, depending on board space constraints and pinout requirements.

Part Context

This component belongs to the AT97SC3204 series of Trusted Platform Modules. The series provides a single-chip turnkey solution for OEM and ODM manufacturers, integrating firmware directly onto the chip. It supports manufacturing initialization and verification software for board assembly processes.

Replacement Considerations

Consult the AT97SC3204 datasheet addendum for the complete catalog number ordering code to identify compatible variants or alternative packages within the same family.