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Features
General
* High-performance, Low-power secureAVR Core Enhanced RISC Architecture * * * * * * *
- 137 Powerful Instructions (Most Executed in a Single Clock Cycle) Bond Pad Locations Conforming to ISO 7816-2 ESD Protection to 6000V Operating Ranges: from 2.7V to 5.5V Compliant with ICAO specifications; EMV 2000 Specifications; PC Industry Compatible Power-saving Wait and Very Low-power Stop Modes Power-up Detection Available in Wafers, Modules, Dual Interface Module, Contactless Module or Inlay and Industry-standard Packages
Contactless Mode
* Contactless Interface Controller (CIC) with Full Support for ISO/IEC 14443 Type A and * * * * * * * *
B Protocols Supply Voltage Clamp and Regulation Full-bridge Power Rectification On-chip Tuning Capacitance: 10 pF up to 120 pF 3.4 MHz Internal Bus Maximum Frequency with a Clock Extracted From the External Clock and 20 (AVR(R)) or 40 MHz (AdvX) if the Clock is Internally Generated 13.56 MHz Clock Extraction 3.4 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 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: Up to 424 kbps RF Frame: Up to 256 Bytes
Secure Microcontroller for Smart Cards AT90SC 12872RCFT Summary
* *
Memory
* 128K Bytes of ROM Program Memory * 72K Bytes of EEPROM, Including 128 OTP Bytes and 384-byte Bit-addressable Area
- 1 to 128-byte Program / Erase - 2 ms Program / 2 ms Erase - Typically More than 500,000 Write/Erase Cycles at Temperatures of 250C - Minimum 10 Years Data Retention * 5K Bytes of RAM + 256 Bytes of DMA Dedicated RAM * 32K Bytes of ROM Dedicated to Atmel's Crypto Library
Peripherals
* One ISO 7816 Controller * * * * * *
- Up to 625 kbps at 5 MHz - Compliant with T= 0 and T= 1 Protocols Two I/O Ports (Configurable to Support ISO7816-3, 2-wire protocols...) Programmable Internal Oscillator (Up to 40 Mhz for AdvX and Up to 20 Mhz for Internal CPU clock) Three16-bit Timers (Watchdog capability) Random Number Generator (RNG) 2-level, 8-vector Interrupt Controller Hardware DES and Triple DES (DPA, SPA, DEMA Resistant)
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Note: This is a summary document. A complete document will be available under NDA. For more information, please contact your local Atmel sales office.
* Checksum Accelerator * CRC 16 & 32 Engine (Compliant with ISO/IEC 3309) * 32-Bit AdvX 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)
Security
* * * * * * * * *
Dedicated Hardware for Protection Against SPA/DPA/DEMA 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) Designed to meet Common Criteria EAL4+
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 AT90SC12872RCFT is a low-power, high-performance, 8-/16-bit microcontroller with ROM program memory, EEPROM data memor y, based on the secureAVR enhanced RISC architecture and with a dual interface (contact+contactless). By executing powerful instructions in a single clock cycle, the AT90SC12872RCFT achieves throughputs close to 1 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 AT90SC12872RCFT uses the secureAVR architecture that allows the linear addressing of up to 8M bytes of code and up to 16M bytes of data as well as a number of new functional and security features. The AT90SC12872RCFT features 72K bytes of high-performance EEPROM (fast erase/write time, high endurance).This allows system developers to offer their customers a true 64K bytes EEPROM, while still being able to use the remaining 8K 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 AT90SC12872RCFT 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 targets Access Control and ID applications. A block diagram of the AT90SC12872RCF is shown in Figure 1.
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AT90SC12872RCFT
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AT90SC12872RCFT
Figure 1. AT90SC12872RCFT Contact/Contactless secureAVR Enhanced Architecture
32K ROM Cryptography Data Bus 8-bit
72KB EEPROM User Memory + OTP 128KB ROM Program Memory 16 Instruction Register 16 Instruction Decoder 16
Access Control
RNG
Secure Control
CLK GND VCC
PC
General Purpose Registers X Y Z 8 8
5KB RAM Data Memory Interrupt Unit ISO 7816 Controller ISO 7816 I/O Port 0
IN/OUT0
ALU 8
ISO 7816 I/O Port 1
IN/OUT1
Control Lines Status Register
ISO14443 Controller (CIC)
DMA Controller
Access Control
RF Modulator Power and Clock
RF1 RF2
Timers
DES/Triple DES
Reset Circuit
RST
AdvX
Crypto-Accelerator
DPA Counter Measures
CRC and Checksum Accelerator
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6502AS-SMIC-05Apr05

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