AT97SC3205T-H3M46-20

Application Specific Microcontrollers Overview

The AT97SC3205T-H3M46-20 is a security integrated circuit implementing the Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2 specification. It features an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM storage for RSA keys. The device operates via I2C interface at 400kHz Fast Mode or 100kHz Standard Mode with a 3.3V supply voltage. It includes FIPS-140-2 certified modules for RNG, HMAC, AES, SHA, and RSA. The component 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

Application Specific Microcontrollers Applications

• Embedded systems requiring trusted platform module integration
• Hardware physical presence indication
• Secure key generation and management

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix against the manufacturer's summary catalog number guide to confirm package type and operational temperature range. Confirm availability status as distribution channels may vary. Ensure compatibility with system power supply decoupling requirements using X5R or X7R capacitors.

Application Specific Microcontrollers Selection Notes

Select based on required package format: 28X1 (28-pin Thin TSSOP) or 32M3 (32-pin Very Thin QFN). Choose the appropriate operational temperature range, either Commercial (0°C to 70°C) or Industrial (-40°C to 85°C). Ensure the host system supports the I2C protocol speeds of 100kHz or 400kHz.

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 embedded security applications, integrating cryptographic functions and secure storage within a compact surface-mount package.

Application Specific Microcontrollers Replacement Considerations

Consult the AT97SC3205T Summary Part Number Selection Guide for verified substitutes. Ensure replacement parts maintain identical I2C interface timing, pinout configurations, and TCG compliance levels.