AT97SC3205T-U3A1C-20

AT97SC3205T Trusted Platform Module I2C Interface SUMMARY DATASHEET Features             Compliant to the Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2 Specification Single-chip Turnkey Solution Hardware Asymmetric Crypto Engine Atmel AVR® RISC Microprocessor Internal EEPROM Storage for RSA Keys 400kHz Fast Mode/100kHz Standard Mode I2C Operation Secure Hardware and Firmware Design and Device Layout FIPS-140-2 Module Certified Including the High-quality Random Number Generator (RNG), HMAC, AES, SHA, and RSA Engines NV Storage Space for 2066 bytes of User Defined Data 3.3V Supply Voltage 28-lead Thin TSSOP or 32-pad QFN Packages Offered in Commercial (0C to 70C) and Industrial (-40 to +85C) Temperature Range Description Atmel AT97SC3205T is a fully integrated security module designed to be integrated into embedded systems. It implements version 1.2 of the Trusted Computing Group (TCG) specification for Trusted Platform Modules (TPM). This is a summary document. The complete document is available under NDA. For more information, please contact your local Atmel sales office. Atmel-8883AS-TPM-AT97SC3205T-Datasheet-Summary_022014 Pin Configuration and Pinouts Pin Configurations Pin Name Description VCC 3.3V Supply Voltage GND Ground LRESET# Reset Input Active Low SM_DAT Serial Data Input/Output SM_CLK Serial Clock Input GPIO General Purpose Input/Output GPIO-Express-00 GPIO Assigned to TPM_NV_INDEX_GPIO_00 PP/GPIO Hardware Physical Presence or GPIO Pin TestI Test Input (Disabled) TestBI/GPIO/XTAMPER Test Input (Disabled) / XTAMPER / GPIO Pin TWI_Wakeup# Low-Power Sleep Recovery (Active Low) PIRQ# SPI Interrupt Requests ATest Atmel Test Pin NC No Connect Pinout Diagrams 4 25 GND NC 5 24 VCC GPIO-Express-00 6 23 ATest* PP/GPIO/TWI_Wakeup# 7 22 TWI_Wakeup# TestI* 8 TestBI/GPIO/XTAMPER 9 Note: 2 4 21 ATest* TestI* 5 20 TWI_Wakeup# 21 ATest* TestBI/GPIO/XTAMPER 6 19 ATest* 20 PIRQ# NC 7 18 PIRQ# 19 VCC VCC 8 17 LRESET# 18 GND NC 12 NC 13 17 GPIO NC 14 15 NC 16 LRESET# * Used for Atmel internal testing only. Tie to VCC or GND directly or through a 4.7K resistor. AT97SC3205T [SUMMARY DATASHEET] Atmel-8883AS-TPM-AT97SC3205T-Datasheet-Summary_022014 24 ATest* NC 16 22 VCC PP/GPIO/TWI_Wakeup# NC 15 3 NC 14 23 GND GPIO-Express-00 NC 13 2 GPIO 12 1 9 VCC GND GND VCC 10 GND 11 25 NC 26 ATest* GND 26 NC 3 27 NC 27 NC VCC 28 NC 28 NC 2 29 SM_CLK 1 30 SM_DAT SM_DAT SM_CLK 31 NC 32-pin QFN 4.00mm x 4.00mm Body 0.40mm Pitch 28-pin TSSOP 4.40mm x 9.70mm Body 0.65mm Pitch NC 11 Figure 1-1. 32 GND Table 1-1. NC 10 1. Table 1-2. Pin Descriptions Pin Description VCC Power Supply, 3.3V. Care should be taken to prevent excessive noise. Effective decoupling of the VCC inputs to the Atmel TPM is critical to assure consistently reliable operation over the lifetime of the system. The Atmel recommendation is for a decoupling bypass capacitor within the range of 2200pF to 4700pF to be placed as close as possible