AT97SC3205-H3M45-10

Application Specific Microcontrollers Overview

The AT97SC3205-H3M45-10 is a Trusted Platform Module (TPM) security IC compliant with TCG TPM Version 1.2 and TIS Version 1.3 specifications. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA key storage. The device communicates via the Serial Peripheral Interface (SPI) protocol at frequencies up to 45MHz. It operates on a 3.3V supply voltage and includes a FIPS-140-2 certified high-quality Random Number Generator (RNG).

Application Specific Microcontrollers Feature Summary

• Compliant with TCG TPM Version 1.2 and TIS Version 1.3 specifications.
• Integrates an Atmel AVR RISC Microprocessor and Hardware Asymmetric Crypto Engine.
• Supports SPI Protocol with clock speeds up to 45MHz.
• Includes NV Storage Space for 2066 bytes of User Defined Data.

Application Specific Microcontrollers Applications

• Personal computers requiring hardware-based security modules.
• Embedded systems needing trusted platform authentication.
• OEM/ODM manufacturing initialization and verification processes.

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current catalog number guide, as the complete code may be detailed in a separate addendum. Confirm package availability, as the component is offered in both 28-lead Thin TSSOP and 32-pad QFN configurations depending on the full part designation.

Application Specific Microcontrollers Selection Notes

Select based on required operating temperature range; the device supports Commercial (0°C to 70°C) and Industrial (-40°C to +85°C) ranges. Ensure the design accommodates the 3.3V supply voltage and utilizes the appropriate interface pins for SPI communication. Consider the physical footprint requirements when choosing between the 28X1 TSSOP or 32M3 QFN packages.

Application Specific Microcontrollers Part Context

This component belongs to the AT97SC3205 series of fully integrated security modules designed for PC clients and embedded systems. It provides a turnkey solution by including integrated firmware and necessary device drivers for OS integration. The chip features dynamic internal memory management for multiple RSA keys without system intervention.

Application Specific Microcontrollers Replacement Considerations

Consult the official AT97SC3205 datasheet addendum for the complete catalog number ordering code to identify exact equivalents. Verify pin compatibility and firmware support before substituting with other TPM devices from different manufacturers.

Application Specific Microcontrollers FAQ

What is the maximum SPI clock frequency supported?

The device supports the SPI protocol up to 45MHz, although the typical PC operating range is specified as 24MHz to 33MHz.

How should unused GPIO pins be handled?

Unused GPIO Express-00 and PP/GPIO pins should be left floating due to their internal pull-up and pull-down resistors, respectively. Other general-purpose GPIO pins can be tied to GND or VCC at the customer's discretion.

Is the Random Number Generator (RNG) certified?

Yes, the TPM includes a FIPS-140-2 certified high-quality Random Number Generator (RNG) used for key generation and TCG protocol functions.