ST19WSC8

` ENHANCED 8 BIT CPU WITH EXTENDED ADDRESSING MODES
` 64 KBYTES USER ROM WITHPARTITIONING
` 2 KBYTES USER RAM WITH PARTITIONING
` 8 KBYTES USER EEPROM WITH PARTITIONING plus 128 BYTES USER and ST OTP AREA:
Highly reliable CMOS EEPROM submicron technology
Error Correction Code for single bit fail correction within a byte
10 year data retention
500,000 Erase/Write cycles endurance
1 to 32 bytes Erase or Program in 1 ms
` SECURITY FIREWALLS FOR MEMORIES,and ENHANCED DES ACCELERATOR.
` VERY HIGH SECURITY FEATURES INCLUDING EEPROM FLASH PROGRAMMING AND CLOCK MANAGEMENT.
` 2x8 BIT TIMERS WITH INTERRUPT CAPABILITY
` HARDWARE SECURITY ENHANCED DES ACCELERATOR WITH LIBRARY SUPPORT FOR SYMMETRICAL ALGORITHMS:
DES, triple DES computations and CBC chaining mode...
` ISO 3309 CRC CALCULATION BLOCK
` FIPS 140-2 COMPLIANT RANDOM NUMBER GENERATOR WITH TWO GUN REGISTERS (Generators of Unpredictable Number)
` 2.7 V TO 5.5 V SUPPLY VOLTAGE
` EXTERNAL CLOCK FREQUENCY UP TO 10 MHz
` HIGH PERFORMANCE PROVIDED USING INTERNAL CLOCK FREQUENCY
` UNIQUE SERIAL NUMBER ON EACH DIE
` POWER SAVING STANDBY MODE
` CONTACT ASSIGNMENT COMPATIBLE ISO 7816-2
` SERIAL ACCESS I/O, ISO 7816-3 COMPATIBLE
` ESD PROTECTION GREATER THAN 5000 V

The product ST19WSC8, member of the ST19W platform, is a serial access microcontroller specially designed for cost effective secure portable applications. It is manufactured using an advanced highly reliable ST CMOS EEPROM technology.

ST19WSC8 is based on the STMicroelectronics 8 bit CPU already implemented on the ST19X product family and includes on-chip memories: User ROM, User RAM and EEPROM with state of the art security features. ROM, RAM and EEPROM memories can be configured into partitions with customized access rules.An additional ST ROM contains all ST provided functions and libraries.

Access from any memory area to another are protected by hardware FIREWALLS. Access rules are User defined and can be selected by mask options.The chip includes an Enhanced DES accelerator which is accessible via cryptographic software libraries located in ST ROM.

As with all the other ST19W products, a serial interface fully compatible with the ISO7816 standard for Smartcard applications is available.

A CRC calculation block is also available and is directly accessible by the User.