1/3 data brief may 2004 for further information contact your local st sales office. st19wsc8 smartcard mcu with 8 kbytes eeprom 3 product features enhanced 8 bit cpu with extended addressing modes 64 kbytes user rom with partitioning 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 figure 1. delivery form function speed (1) 1. typical values, independent from external clock frequency and supply voltage. triple des (with enhanced security) 58.0 s single des (with enhanced security) 43.0 s 259a.ai micromodule wafer
st19wsc8 2/3 hardware description the product, 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 reli- able st cmos eeprom tec hnology. it is based on the stmicroelectronics 8 bit cpu al- ready 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 ac- cess rules. an additional st rom contains all st provided functions and libraries. access from any memory area to another are pro- tected by hardware firewalls. access rules are user defined and can be selected by mask op- tions. the chip includes an enhanced des accelerator which is accessible via cryptographic software li- braries located in st rom. as with all the other st19w products, a serial in- terface fully compatible with the iso7816 standard for smartcard applications is available. a crc calculation block is also available and is di- rectly accessible by the user. figure 2. block diagram software development software development and firmware generation (rom and options) are supported by a compre- hensive set of development tools, dedicated at de- velopment and validation of softwares: ? smartcard ics emulator, ? st19x simulation package, ? scdevtools environment for windows tm nt, 2000, xp based stations, ? powerful c/c++ compiler and debugger are also available (third party tools). internal bus memory access firewall i/o 1 x serial inter- face gnd 8 bit cpu 2 x 8 bit timers crc module clk clock gene- rator module st rom , and edes firewall ram user rom edes accele -rator 469 vcc gun a & gun b secu- rity admin. reset eeprom st rom , and edes library
3/3 st19wsc8 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2004 stmicroelectronics - all rights reserved bull cp8 patents stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states www.st.com
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