AT97SC3205T-U3A1C-20

Application Specific Microcontrollers Overview

The AT97SC3205T-U3A1C-20 is a Trusted Platform Module (TPM) compliant with the TCG TPM Version 1.2 specification. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA key storage. The device supports I2C communication at 400kHz Fast Mode or 100kHz Standard Mode. It includes a FIPS-140-2 certified high-quality Random Number Generator (RNG), HMAC, AES, SHA, and RSA engines. The module provides 2066 bytes of non-volatile user-defined data storage and operates on a 3.3V supply voltage.

Application Specific Microcontrollers Feature Summary

• Compliant with Trusted Computing Group (TCG) TPM Version 1.2 Specification
• FIPS-140-2 Certified Hardware Crypto Engine including RNG, HMAC, AES, SHA, and RSA
• Integrated Atmel AVR RISC Microprocessor with Internal EEPROM Storage
• I2C Interface supporting 400kHz Fast Mode and 100kHz Standard Mode

Application Specific Microcontrollers Applications

• Embedded system security integration
• Trusted Platform Module implementation
• Hardware cryptographic authentication

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix U3A1C-20 against the manufacturer's complete catalog number guide, as the summary datasheet references an addendum for full part number details. Confirm package availability, as the device is offered in both 28-lead Thin TSSOP and 32-pad QFN packages. Ensure compliance with RoHS and lead-free requirements during procurement.

Application Specific Microcontrollers Selection Notes

Select the appropriate package based on board space constraints: 28-pin Thin TSSOP (4.4mm x 9.7mm) or 32-pad Very Thin QFN (4.0mm x 4.0mm). Verify operational temperature range requirements; the device is available in Commercial (0°C to 70°C) and Industrial (-40°C to 85°C) grades. Ensure the design accommodates the 3.3V supply voltage and proper decoupling capacitor placement near VCC pins.

Application Specific Microcontrollers Part Context

The AT97SC3205T series is a fully integrated security module designed for embedded systems. It implements the TCG TPM 1.2 specification using a single-chip turnkey solution. The device combines an 8-bit AVR RISC CPU with dedicated cryptographic hardware and non-volatile memory to provide secure boot, identity, and data protection capabilities.

Application Specific Microcontrollers Replacement Considerations

Consult the AT97SC3205T datasheet addendum for the complete catalog number ordering code to identify equivalent variants. Verify pin compatibility between the 28-lead TSSOP and 32-pad QFN packages if substituting package types. Ensure any replacement maintains TCG TPM 1.2 compliance and FIPS-140-2 certification status.