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 AdvX™ 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® V3.20c Debugger or Atmel’s AVR Studio® 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 memory,

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 AT90SC12872RCFT is shown in Figure 1.

AT90SC12872RCFT

2

6502DS-SPD-27Mar07