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AT97SC3205T-G3M4C-10

MCHPAT97SC3205T-G3M4C-10

Microchip Technology
Security ICs / Authentication ICs FF Com I2C TPM 4x4 32VQFN UEK
975 in stock
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Overview

The AT97SC3205T is a fully integrated Trusted Platform Module (TPM) based on an 8-bit AVR RISC core, designed to provide hardware-based security for embedded systems. It is compliant with the TCG TPM Version 1.2 specification and features a dedicated hardware asymmetric crypto engine for RSA operations. The device includes 2066 bytes of user-defined NV storage space and integrated engines for AES, SHA, and HMAC cryptographic functions.

Why Choose This Part

This turnkey solution simplifies security implementation by offloading complex RSA and SHA calculations to dedicated hardware. It features a secure physical layout and hardware design to protect against side-channel attacks and physical tampering. Its dual interface support for I2C and SPI allows for flexible integration into various microcontroller and microprocessor architectures.

Applications

Embedded System Integrity
Used to perform secure boot and verify software integrity through hardware-rooted cryptographic measurements.
Secure Key Storage
Utilizes internal EEPROM and RSA engines to generate and store cryptographic keys safely away from the main processor.
Network Authentication
Provides FIPS-140-2 certified random number generation and HMAC for secure platform identity in industrial networking.

Key Specifications

Interface I2C
Applications Trusted Platform Module (TPM)
Mounting Type Surface Mount
Number of I/O 4
Core Processor AVR
Package / Case 32-VFQFN Exposed Pad
Voltage - Supply 3.3V
Program Memory Type EEPROM
Operating Temperature 0degC ~ 70degC
Supplier Device Package 32-VQFN (4x4)

Getting Started

Engineers should begin by reviewing the TCG TPM 1.2 specifications and obtaining the Microchip TPM development library. Integration typically involves connecting the device via the I2C interface to a host controller and using standard TPM software stacks like TrouSerS or wolfTPM. Ensure the 3.3V supply is stable and the 32-VQFN package is correctly reflowed with the exposed pad grounded for thermal and electrical performance.

Also Consider

ATSHA204A MCHPMicrochip Technology - A simpler, lower-cost CryptoAuthentication chip for applications that only require symmetric SHA-256 and HMAC functions.
ATECC608B MCHPMicrochip Technology - A modern secure element that supports Elliptic Curve Cryptography (ECC) and is better suited for IoT cloud provisioning.

Categories

Security ICs > TPMs & Crypto Accelerators Security ICs