Description

ST23YS02

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Description

The ST23YS02 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.

Figure 1.

ST23YS02 block diagram

Ai12551

Internal Bus

I/O

IART

GND

8/16-bit

CPU

Core

2 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