ST ST23YR80 User Manual

ST23YR80

259a.ai

Micromodule Wafer

Dual contactless smartcard MCU with 80 Kbyte EEPROM,

enhanced security, cryptoprocessor and optimized RF performance

Data brief

Features

Hardware features

■ Enhanced 8/16-bit ST23 CPU core with

16 Mbytes linear addressable memory

■ 390 Kbytes of User ROM

■ 6 Kbytes of User RAM

■ 2 Kbytes of NESCRYPT RAM

■ 80 Kbytes of User EEPROM including 128

bytes of User OTP area: – 30-year data retention at 25° C – 500,000 erase/write cycles at 25° C – 1 to 64 bytes Erase or Program in 1.5 ms

■ Operating temperature: –25° to +85° C (certain

restrictions apply)

■ Enhanced NESCRYPT crypto-processor for

public key cryptography

■ Hardware security enhanced DES accelerator

■ Three 8-bit timers with watchdog and interrupt

capability

■ 3 V and 5 V 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 with

ISO/IEC 7816-3 standards

■ Asynchronous receiver transmitter (IART) for

high speed serial data support (ISO/IEC 7816-3 and EMV™ compliant)

■ ESD protection greater then 6 kV (HBM) for

contact pads and 4 kV for contactless pads

■ 0.5 Kbytes dedicated RFUART RAM

■ BPSK - NRZ load modulation (card-to-reader)

■ 8 to 14% amplitude modulation reception

(reader to card) as minimum range

■ Enhanced RF performance provided by CPU

clock frequency up to 29 MHz coupled with clock frequency divider

Security features

■ Active shield

■ Monitoring of environmental parameters

■ Protection mechanisms against faults

■ 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

■ Interface with RF readers supported through a

library of embedded software functions compatible with ISO/IEC 14443 standards.

■ Software development and firmware

generation are supported by a comprehensive set of development tools dedicated to software design and validation:

– C compiler, simulator and emulator

Contactless features

■ Complies with ISO/IEC 14443 type B

standards

■ 13.56 MHz carrier frequency

■ RF frame up to 512 bytes

■ RFUART (RF universal asynchronous receiver

Applications

ST23YR80 major applications include:

■ ePassport, eGovernment and ID applications

including driving licenses

transmitter) up to 848 Kbps

February 2011 Doc ID 14895 Rev 3 1/4

www.st.com

ST23YR80 Description

1 Description

The ST23YR80 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.

An RF Interface including an RF universal asynchronous receiver transmitter (RF UART) enables contactless communication up to 848 Kbits/s compatible with the ISO 14443-B standard.

Moreover, an ISO 7816-3 EMV-compliant asynchronous receiver transmitter (IART) communication peripheral is available.

Figure 1. ST23YR80 block diagram

RAM

Inter-

face

AC0 AC1

EEPROM

RF UART

RAM

RF UART

CRC

Module

User

ROM

(Boot software)

ST ROM Firewall

Internal Bus

Clock

Gene-

rator

Module

CLK

ST ROM

3 x

8-bit

Timers

Security Monitor-

ing and Control

RESET

EDES

Accelerator

True

Random

Number

Gene-

rator

GND

Vcc

NESCRYPT

NESCRYPT RAM

MPU

IART

8/16-bit

CPU Core

2 I/Os

Ai15204

Doc ID 14895 Rev 3 2/4

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