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ST23YS08
Smartcard MCU with Enhanced Security and 8 KBytes High-Density EEPROM
Data Brief
Features
ST23YS08 major applications include:
Banking targeting VISA(R) and CASTTM certificates
Hardware features
259a.ai
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 EMVTM compliant) ISO 3309 CRC calculation block ESD protection greater than 5 kV (HBM)
Micromodule
Wafer

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

April 2007
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www.st.com 1
For further information contact your local STMicroelectronics sales office.
Description
ST23YS08
1
Description
The ST23YS08 product is a serial access microcontroller specially designed for secure smartcard applications. It is based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 MBytes linear addressing space. It is manufactured using an advanced highly reliable ST CMOS EEPROM technology. The device includes an Enhanced DES accelerator (EDES). It enables Cipher Block Chaining (CBC) mode, DES and triple DES computation. A serial interface fully compatible with the ISO 7816-3 standard (T = 0 and T = 1) for Smartcard applications is available. A CRC calculation block is also available. Figure 1. ST23YS08 block diagram
RAM
EEPROM
User ROM
ST ROM (Boot software)
EDES Accelerator
ST ROM Firewall
Internal Bus
CRC Module
Clock Generator Module CLK
2x 8-bit timers
Security Monitoring and Control
True Random Number Generator Vcc
8/16-bit CPU Core
IART
RESET
GND
I/O
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Revision history
1.1
Development environment
Development tools for smartcard products include a complete range of hardware systems and software tools from STMicroelectronics and third-party tool suppliers. The range of tools includes solutions to help you to develop and debug your application and evaluate smartcard products and their peripherals. An Integrated Development Environment (IDE), the STMicroelectronics Visual Debug (STVD), provides a set of tools for developing embedded applications. This interface manages the project configuration, code edition, code generation and program debugging. An emulator (SCICS) and a simulator are available for developing and validating your application code. All the information needed to generate the application code and personalization will be collected in a delivery file (.DLV extension). This file is created using the Delivery menu of the STMicroelectronics configuration software tool, SCOOL.
2
Revision history
Table 1.
Date 23-Jan-2007 10-Apr-2007
Document revision history
Revision 0.1 1 Initial release. Updated Section 1: Description and Figure 1: ST23YS08 block diagram. Added Section 1.1: Development environment. Changes
DB_23YS08/0704
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