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Features
General
* High-performance, Low-power secureAVR(R) Core RISC Architecture * 135 Powerful Instructions (Most Executed in a Single Clock Cycle) * Low-power IDLE and POWER-DOWN Modes * Bond Pad Locations Conforming to ISO 7816-2 * ESD Protection to 6000V on contact pins, 2000V on RF pins * Operating Ranges: 2.7V to 5.5V * Power-saving Wait and Very Low-power Stop Modes * Power-up Detection * Compliant with ICAO e-passport specifications (BAC, AA, EAC) * Compliant with EMV 2000 Specifications; PC Industry Compatible * Available in Wafers, Modules, Contactless Module or Inlay and Industry-standard Packages
Secure Microcontrollers for Smart Cards
Contactless Mode
* Contactless Interface Controller (CIC) with Full Support for ISO/IEC 14443 Type A and B Protocol * Supply Voltage Clamp and Regulation * Full-bridge Power Rectification * On-chip Tuning Capacitance: 20pF or 100pF * 13.56 MHz Clock Extraction * 6.78 MHz Internal Bus Frequency * Reader-to-card: * ISO/IEC Type A: 100% ASK Modulation and Modified Miller Bit Coding * ISO/IEC Type B: 10% ASK Modulation and NRZ Bit Coding * Baud Rates: 106Kbps, 212Kbps, 424Kbps and 848Kbps * Card-to-reader: * ISO/IEC Type A: Generation of 847.5KHz Subcarrier with OOK Modulation and Manchester Bit Coding * ISO/IEC Type B: Modulation of Incoming RF Carrier by Resistive Load Switching / Generation of 847.5KHz Subcarrier with BPSK Modulation / NRZ data Encoding * Baud Rates: 106Kbps, 212Kbps, 424Kbps and 848Kbps
AT90SC256144RCFT
Memory
* 256K Bytes of ROM Program Memory * 144K Bytes of EEPROM, Including 128 OTP Bytes and 384 Bit-addressable Bytes * 1 to 128-byte Program/Erase * 2 ms Program, 2 ms Erase * Endurance: 500,000 Write/Erase Cycles at 25C * 10 Years Data Retention * EEPROM Erase Only Mode * Write EEPROM without or with Auto-Erase * 8K Bytes of RAM + 256 Bytes of DMA dedicated RAM * 32K Bytes of ROM Dedicated to Atmel's Crypto Library
Security
* Dedicated Hardware for Protection Against SPA/DPA Attacks * Advanced Protection Against Physical Attack, Including Active Shield * Environmental Protection Systems * Voltage Monitor * Frequency Monitor * Temperature Monitor * Light Protection * Secure Memory Management/Access Protection (Supervisor Mode) * Security Certification Targeted: Common Criteria EAL5+, VISA, CAST
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Note: This a summary and preliminary document. For more information, please contact your local Atmel sales office.
Peripherals
* One ISO 7816 controller * Up to 625 kbps at 5 MHz * Compliant with T = 0 and T = 1 Protocols * Two I/O Ports (Can be Configured to Support 7816-3, 2-wire Protocols...) * Programmable Internal Oscillator (Up to 40 MHz for AdvXTM and up to 20 MHz for internal CPU Clock) * Three 16-bit Timers * Random Number Generator (RNG) * 2-level, 8-vector Interrupt Controller * Hardware DES and Triple DES DPA, SPA and DEMA Resistant * Checksum Accelerator * CRC 16 & 32 Engine (Compliant with ISO/IEC 3309) * 32-Bit Cryptographic Accelerator for Public Key Operations * RSA, DSA, ECC, Diffie-Hellman * DMA Controller (Used to Speed-Up Data Transfers when Communicating via the Contactless Interface)
Development Tools
* Voyager Emulation Platform (ATV4 Advanced) to Support Software Development * IAR Embedded Workbench(R) V3.20c Debugger or Atmel's AVR Studio(R) Version 4.07 or Above * Software Libraries and Application Notes
Description
The AT90SC256144RCFT is a low-power, high-performance, 8/16-bit microcontroller with ROM program memory, EEPROM data memory and a crypto-accelerator, based on the secureAVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the AT90SC256144RCFT achieves throughputs close to 1 Millions of Instructions per Second (MIPS) per MHz. Its Harvard architecture includes 32 general purpose working registers directly connected to the ALU, allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The AT90SC256144RCFT uses the secureAVR that allows the linear addressing code and data as well as a number of new functional and security features. The AT90SC256144RCFT features 144K bytes of high-performance EEPROM (fast erase/write time, high endurance).This allows system developers to offer their customers a true 128K bytes EEPROM, while still being able to use the remaining 16K bytes for their own purposes (customization and patches, for example). The ability to map the EEPROM in the code space allows parts of the program memory to be reprogrammed in-system. The cryptographic accelerator featured in the AT90SC256144RCFT is the new AdvX, a N-bit multiplier-accumulator dedicated to performing fast encryption and authentication functions. All cryptographic routines are executed on the secureAVR core which uses the AdvX accelerator during encryption/decryption. AdvX is based on a 32-bit technology, thus enabling fast computation and low power operation. AdvX supports standard finite fields arithmetic functions (including RSA, DSA, DH and ECC) and GF(2N) arithmetic functions (including ECC). Additional security features include power, frequency and temperature protection logic, logical scrambling on program data and addresses, Power Analysis countermeasures and memory accesses controlled by a supervisor mode. This product is specifically designed for Smart Cards and mainly targets Access Control and ID applications. A block diagram of the AT90SC256144RCFT is shown in Figure 1.
AT90SC256144RCFT
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Figure 1. AT90SC256144RCFT Contact/Contactless secureAVR Enhanced Architecture
AT90SC256144RCFT
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