Data Brief

For further information contact your local STMicroelectronics sales office.

April 2007

DB_23YS08/0704 Rev 1

1/4

1

ST23YS08

Smartcard MCU

with Enhanced Security and 8 KBytes High-Density EEPROM

Features

ST23YS08 major applications include:

■

Banking targeting VISA® and CAST™

certificates

Hardware features

■

Enhanced 8/16-bit CPU core with 16 MBytes

linear addressable memory

■

108 Kbytes User ROM

■

2 Kbytes User RAM

■

8 Kbytes User EEPROM including 64 Bytes

User OTP area:

– Highly reliable CMOS EEPROM submicron

technology

– 10-year data retention

– 500,000 Erase/Write cycles endurance

typical at 25° C

– 1 to 32 Bytes Erase or Program in 1.5 ms

■

Two 8-bit timers with watchdog and interrupt

capability

■

3V and 5V supply voltage ranges

■

External clock frequency from 1 up to 5 MHz

■

High performance provided by:

– CPU clock frequency up to 29 MHz

■

Power-saving Standby mode

■

Contact assignment compatible ISO 7816-3

■

Asynchronous Receiver Transmitter (IART) for

high speed serial data support (ISO 7816-3

and EMV™ compliant)

■

ISO 3309 CRC calculation block

■

ESD protection greater than 5 kV (HBM)

Security features

■

Active shield

■

Monitoring of environmental parameters

■

Protection mechanisms against faults

■

Hardware Security Enhanced DES accelerator

■

FIPS 140-2 and AIS-31 class P2 compliant

True Random Number Generator (TRNG)

■

Unique serial number on each die

Development environment

Software development and firmware generation

are supported by a comprehensive set of

development tools dedicated to software design

and validation:

■

Emulator

■

C Compiler

■

Simulator

259a.ai

Micromodule

Wafer

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