Description

ST23YL18

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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.

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.

Figure 1.

ST23YL18 block diagram

Ai12565

Internal Bus

2 I/Os

IART

GND

8/16-bit

CPU

Core

3 x

8-bit

timers

CRC

Module

CLK

Clock

Gene-

rator

Module

Vcc

True

Random

Number

Gene-

rator

RAM

ST ROM

(Boot software)

Security

Monitor-

ing and

Control

RESET

EEPROM

EDES

Accelerator

User

ROM

ST ROM Firewall

NESCRYPT

NESCRYPT RAM

MPU