SLE66C321PE

The  SLE66C321PE is one member of the improved 66PE-series of Infineon Technologies and the successor of the SLE66C322P. This high performance security controller is manufactured in advanced 0.22 µm CMOS technology. It is downward compatible to existing 66P controller derivatives. The well known ECO2000 8/16 bit 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 compared to existing 66P derivatives.  

Performance: The internal clock frequency can be adjusted to a level up to 33 MHz either as a multiple of 1,2,3,4 to the external frequency or independent of the clock rate of the terminal with the help of the internal clock. It is adjustable according to either available power requirements or required performance: 
·  Increased internal clock frequency for maximum performance, e.g. for high performance with max. frequency in payment applications.
·  Automatically adjusted frequency for a max. given power consumption, e.g. by GSM or UMTS requirements. 

Memory: The SLE66C321PE offers 96 Kbytes of User-ROM, 256 byte internal RAM, 2304 byte XRAM and 32 Kbytes MicroSlim-EEPROM, to fulfill the requirements of mainly standard GSM an SDA payment applications. The large ROM size allows to place applications in the ROM-mask and to keep the E²PROM free for customer data. In addition  it saves mask development costs, as one mask may be used for different customer projects. 
The enhanced Memory Management and Protection Unit allows a secure separation of the operating system and different applications. It allows to separate the memories  in application orientated segments, which can be controlled by the OS. Furthermore, the MMU makes a secure downloading of applications possible even after personalization of a card. These new features suit the requirements of the next generation of multi application operating systems.