AT97SC3205T-H3M4410B

Application Specific Microcontrollers Overview

The AT97SC3205T-H3M4410B is a Trusted Platform Module (TPM) compliant with the TCG TPM Version 1.2 specification. It implements an I2C interface operating at 400kHz Fast Mode or 100kHz Standard Mode and utilizes a 3.3V supply voltage. The device integrates an Atmel AVR RISC microprocessor, internal EEPROM for RSA key storage, and a hardware asymmetric crypto engine. It includes FIPS-140-2 certified components such as a high-quality Random Number Generator (RNG), HMAC, AES, SHA, and RSA engines. The module provides 2066 bytes of NV storage for user-defined data and is available in 28-lead Thin TSSOP or 32-pad QFN packages.

Application Specific Microcontrollers Feature Summary

• Compliant with TCG TPM Version 1.2 Specification
• Hardware Asymmetric Crypto Engine with FIPS-140-2 certification
• Internal EEPROM Storage for RSA Keys
• I2C Interface supporting 400kHz Fast Mode/100kHz Standard Mode

Application Specific Microcontrollers Applications

• Embedded systems requiring trusted platform security
• Hardware physical presence indication via PP/GPIO pin
• Low-power sleep recovery applications using TWI_Wakeup# pin

Application Specific Microcontrollers Procurement Notes

Verify package selection between 28-lead Thin TSSOP and 32-pad QFN based on board layout requirements. Confirm operational temperature range matches Commercial (0°C to 70°C) or Industrial (-40°C to 85°C) specifications. Ensure decoupling capacitors are placed within 5mm of VCC pins to maintain signal integrity.

Application Specific Microcontrollers Selection Notes

Select the appropriate package variant based on spatial constraints and thermal management needs. The device requires a stable 3.3V supply; ensure adequate decoupling with X5R or X7R dielectric capacitors. Consider GPIO availability if hardware physical presence detection or general-purpose input/output functions are required by the system design.

Application Specific Microcontrollers Part Context

This component belongs to the AT97SC3205T series of Trusted Platform Modules manufactured by Microchip Technology (formerly Atmel). It serves as a single-chip turnkey solution for implementing secure cryptographic operations and identity verification in embedded environments according to industry-standard TCG protocols.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing firmware and hardware interfaces before considering alternative TPM solutions.

Application Specific Microcontrollers FAQ

What is the maximum I2C clock speed supported by the AT97SC3205T?

The device supports I2C operation at 400kHz Fast Mode and 100kHz Standard Mode.

How should unused NC pins be handled in the TSSOP package?

Unused No Connect (NC) pins in the TSSOP package can be tied to GND, VCC, or left floating at the customer's discretion.

What is the function of the PP/GPIO pin?

The PP/GPIO pin serves as an indicator for hardware physical presence (active high) and can also function as a General Purpose Input/Output with an internal pull-down resistor.