SLE66CX320P

SLE 66CX320P is the first product of Infineon Technologies high end security controller family in advanced 0.25 µm CMOS technology. The CPU provides the high efficiency of the SAB 8051 instruction set extended by additional powerful instructions together with enhanced performance, memory sizes and security features.

The internal clock frequency can be adjusted up to 15 MHz independent of the clock rate of the terminal with the help of the PLL. The controller IC offers 63 Kbyte of User-ROM, 256 bytes internal RAM, 2048 bytes XRAM and 32 Kbytes EEPROM. The Memory Management Unit allows a secure separation of the operating system and the applications. Furthermore the MMU makes a secure downloading of applications possible after the personalization of a card. These new features suit the requirements of the next generation of multi application operating systems.

For code compatibility to the SLE 66CxxS family, a transparent mode for the MMU is established which allows to keep the memory mapping of the SLE 66CxxS products. The CRC module allows the easy generation of checksums according to ISO 3309 (16-Bit-CRC). To minimize the overall power consumption, the chip card controller IC offers a sleep mode.

The SLE 66CX320P UART supports the half-duplex transmission protocols T=0 and T=1 according to ISO 7816-3. All relevant transmission parameters can be adjusted by software, as e.g. the clock division factor, direct/inverse convention and the number of stop bits. Additionally, the I/O port can be driven by communication routines realized in software. The Advanced Crypto Engine is equipped with its own RAM of 700 bytes and supports all of today known public-key algorithms based on large integer modular arithmetic.

SLE 66CX320P allows fast and efficient calculation of e.g. RSA operations with key lengths up to 2048 bit. The DDES-EC2 accelerator consists of two modules. The DES module supports symmetrical crypto algorithms according to the Data Encryption Standard in the Electronic Code Book Mode. The EC2 module accelerates the multiplication in GF(2n) and therefore the operations for elliptic curve cryptography. The random number generator (RNG) is able to supply the CPU with true random numbers on all conditions. As an important measure, the chip provides a new and enhanced level of on-chip security features.

In conclusion, the SLE 66CX320P fulfills the requirements of today's chip card applications, as payment, GSM, Pay TV, security access and digital signature and offers a powerful platform for future multi application cards. The SLE 66CX320P integrates outstanding memory sizes, additional peripherals in combination with enhanced performance and optimized power consumption on a minimized die size. Therefore, the SLE 66CX320P offers the basis for a generation of new chip card applications.