ST ST19NR66 User Manual

ST19NR66

259a.ai

Micromodules

Wafer

Dual contactless smartcard MCU with 66 Kbytes high density

EEPROM, enhanced RF performances and dedicated packages

Features

Hardware features

■ Enhanced 8-bit CPU core with extended

addressing modes

■ 224 Kbytes User ROM

■ 6 Kbytes User RAM

■ 66 Kbytes User EEPROM including 128 Bytes

User OTP area:
– 1 to 64 Bytes Erase or Program in 1.5 ms

■ Three 8-bit timers with interrupt capability

■ 1.8 V, 3.0V and 5.0V supply voltage ranges

■ Power-saving Standby mode

■ ESD protection greater than 5000V

■ Serial access I/O, ISO/IEC 7816-3 compatible

■ ISO Asynchronous Receiver Transmitter for

high speed serial data support

Contactless specific features

■ Complies with ISO 14443 type B standards

■ 13.56 MHz carrier frequency

■ RF UART (RF Universal Asynchronous

Receiver Transmitter) for easy-to-manage high
speed data transfers up to 848 Kbits/s

■ RF frame up to 256 Bytes

■ 10% amplitude modulation reception (reader-

to-card)

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

■ Enhanced RF performance provided by CPU

clock frequency up to 20 MHz coupled with
clock frequency divider

■ Interface with RF readers supported through a

library of embedded software functions
compatible with ISO 14443 standard

■ New dedicated contactless micromodule for

thinnest packaging solutions

■ ESD protection on antenna pads greater than

5000 V

Security features

■ EEPROM Flash programming and clock

management

■ Monitoring of environmental parameters

■ Unique serial number on each die

■ Hardware Security Enhanced DES accelerator

with library support for symmetrical algorithms:
– DES, triple DES, DESx computations and

CBC chaining mode

■ 1088-bit Modular Arithmetic Processor (MAP)

with library support for asymmetrical
algorithms:

– RSA, DSA, SHA-1
– AES-128 software library

■ FIPS 140-2 and AIS31-compliant true random

number generator (TRNG)

■ See for additional security features.

Applications

ST19NR66 major applications include:

■ ePassport, ID cards, eGovernment cards and

contactless banking

June 2009 Doc ID 12657 Rev 5 1/5

www.st.com

1

Description ST19NR66

1 Description

The device, member of the ST19N platform, is a serial-access microcontroller specially
designed for cost-effective secure portable applications.

It is manufactured using an advanced highly reliable ST CMOS EEPROM technology.

It is based on the STMicroelectronics 8-bit CPU and includes on-chip memories: User ROM,
User RAM and EEPROM with state-of-the-art security features. ROM, RAM and EEPROM
memories can be configured into partitions with customized access rules.

An additional ST ROM contains all ST provided functions and libraries.

Access from any memory area to another are protected by hardware firewalls. Access rules
are user-defined and can be selected by mask options or during the life of the device.

The device includes an Enhanced DES accelerator which is accessible via cryptographic
software libraries located in ST ROM.

The device includes a Modular Arithmetic Processor (MAP) based on a 1088-bit processor
architecture. It processes modular multiplication, squaring and additional operand
calculations up to 2176 bits.

The internal MAP and Enhanced DES accelerator are designed to speed up cryptographic
calculations using Public Key Algorithms and Secret Key Algorithms.

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.

As with the other ST19N devices, a serial interface electrically compatible with the ISO 7816
standard is available as well as an ISO-compatible high-speed ISO Asynchronous Receiver
Transmitter (IART) enabling communications up to 1.25 Mbit/s.

A CRC calculation block is also available and is directly accessible by the User.

Development environment

Software development and firmware generation (ROM and options) are supported by a
comprehensive set of development tools, dedicated at development and validation of
software:

■ Smartcard ICs Emulator

■ ST19X simulation package

■ ScDevTools environment for Windows® 2000 and XP -based stations

■ Powerful C/C++ compiler and debugger are also available (third-party tools)

■ RF contactless demokit based on ISO 14443 type B standard

2/5 Doc ID 12657Rev 5