ST ST23YL18 User Manual

ST23YL18

Smartcard MCU with enhanced security, crypto-processor and 18 Kbytes EEPROM

Features

ST23YL18 major applications include:

■ Banking, IT and Pay TV applications

Hardware features

■Enhanced 8/16-bit ST23 CPU core with 16 Mbytes linear addressable memory

■196 Kbytes User ROM

■4 Kbytes User RAM

■2 Kbytes NESCRYPT RAM

■18 Kbytes User EEPROM including 128 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 64 Bytes Erase or Program in 1.5 ms

■NESCRYPT crypto-processor for public key cryptography

■Three 8-bit timers with watchdog and interrupt capability

■3V and 5V supply voltage ranges

■External clock frequency up to 10 MHz

■High performance provided by:

–CPU clock frequency up to 29 MHz

■Power-saving Standby state

■Contact assignment compatible ISO 7816-3

■Asynchronous Receiver Transmitter (IART) for high speed serial data support (ISO 7816-3 and EMV™ compliant)

■ESD protection greater than 5 kV (HBM)

Data Brief

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Micromodule Wafer

Security features

■Active shield

■Monitoring of environmental parameters

■Protection mechanisms against faults

■Hardware Security Enhanced DES accelerator

■AIS-31 class P2 compliant True Random Number Generator (TRNG)

■ISO 3309 CRC calculation block

■Memory Protection Unit (MPU)

■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:

■C Compiler

■Simulator

■Emulator

September 2008	Rev 2	1/4
For further information contact your local STMicroelectronics sales office.		www.st.com

Description	ST23YL18

1 Description

The ST23YL18 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.

Moreover, an ISO 7816-3 EMV-compliant Asynchronous Receiver Transmitter (IART) communication peripheral is available.

Figure 1. ST23YL18 block diagram

	RAM	EEPROM	User	ST ROM		EDES		NESCRYPT
			ROM	(Boot software)		Accelerator
				ST ROM Firewall			NESCRYPT RAM
				Internal Bus
				Security	True		MPU
		Clock
			3 x		Random
	CRC	Gene-		Monitor-
			8-bit		Number			IART
	Module	rator		ing and
			timers		Gene-
		Module		Control
						rator	8/16-bit
							CPU
		CLK		RESET	Vcc	GND	Core	2 I/Os
								Ai12565

1.1Development 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.

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