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DATA BRIEF
April 2004
For further information contact your local ST sales office.
ST19WI18
Smartcard MCU With Modular Arithmetic Processor,
I2C & 18 Kbytes High Density EEPROM
3
PRODUCT FEATURES
I
ENHANCED 8 BIT CPU WITH EXTENDED
ADDRESSING MODES
I
112 KBYTES USER ROM WITH
PARTITIONING
I
4 KBYTES USER RAM WITH
PARTITIONING
I
18 KBYTES USER EEPROM WITH
PARTITIONING including 128 BYTES USER
and ST OTP AREA:
Highly reliable CMOS EEPROM
submicron technology
Error Correction Code for single bit fail
correction within a byte
10 year data retention
500,000 Erase/Write cycles endurance
1 to 64 bytes Erase or Program in 2 ms
I
SECURITY FIREWALLS FOR MEMORIES,
MODULAR ARITHMETIC PROCESSOR and
ENHANCED DES ACCELERATOR.
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VERY HIGH SECURITY FEATURES
INCLUDING EEPROM FLASH
PROGRAMMING AND CLOCK
MANAGEMENT.
I
3x8 BIT TIMERS WITH INTERRUPT
CAPABILITY
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HARDWARE SECURITY ENHANCED DES
ACCELERATOR WITH LIBRARY SUPPORT
FOR SYMMETRICAL ALGORITHMS:
DES, triple DES computations and CBC
chaining mode...
I
1088 Bit MODULAR ARITHMETIC
PROCESSOR WITH LIBRARY SUPPORT
FOR ASYMMETRICAL ALGORITHMS
Fast modular multiplication and squaring
using Montgomery method
Software Crypto libraries in separate ST
ROM area for efficient algorithm coding
using a set of advanced functions
Software selectable operand length up to
2176 bits.
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ISO 3309 CRC CALCULATION BLOCK
I
FIPS 140-2 COMPLIANT RANDOM
NUMBER GENERATOR WITH TWO GUN
REGISTERS (Generators of Unpredictable
Number)
I
2.7 V TO 5.5 V SUPPLY VOLTAGE
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EXTERNAL CLOCK FREQUENCY UP TO
8 MHz
I
HIGH PERFORMANCE PROVIDED USING
INTERNAL CLOCK FREQUENCY
I
UNIQUE SERIAL NUMBER ON EACH DIE
I
POWER SAVING STANDBY MODE
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CONTACT ASSIGNMENT COMPATIBLE
ISO 7816-2
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2 SERIAL ACCESS I/O'S, ISO 7816-3
COMPATIBLE
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ISO ASYNCHRONOUS RECEIVER
TRANSMITTER FOR HIGH SPEED SERIAL
DATA SUPPORT
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ESD PROTECTION GREATER THAN 5000 V
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I2C BUS INTERFACE (Slave, Single Master,
Multi-master Configurable) SUPPORTS
SLOW AND FAST MODE
Figure 1. Delivery Form
Function
Speed
(1)
1.
Typical values, independent from external clock frequency
and supply voltage.
RSA 1024 bits signature with CRT
(2)
2.
CRT: Chinese Remainder Theorem.
85 ms
RSA 1024 bits signature without CRT
(2)
282 ms
RSA 1024 bits verification (e='$10001')
5.5 ms
RSA 1024 bits key generation
2.5 s
RSA 2048 bits signature with CRT
(2)
570 ms
RSA 2048 bits verification (e='$10001')
91 ms
Triple DES (with enhanced security)
58.0 s
Single DES (with enhanced security)
43.0 s
259a.ai
Micromodule
Wafer
ST19WI18
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HARDWARE DESCRIPTION
The product, member of the ST19W platform, is a
serial access microcontroller specially designed
for cost effective secure portable applications.
It is manufactured using an advanced highly reli-
able ST CMOS EEPROM technology.
It is based on the STMicroelectronics 8 bit CPU al-
ready implemented on the ST19X product family
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 ac-
cess rules.
An additional ST ROM contains all ST provided
functions and libraries.
Access from any memory area to another are pro-
tected by hardware FIREWALLS. Access rules are
User defined and can be selected by mask options
or during the life of the product.
The chip includes an Enhanced DES accelerator
which is accessible via cryptographic software li-
braries located in ST ROM.
The chip includes also a MAP which is based on a
1088 bits processor architecture. It processes
modular multiplication, squaring and additional
calculations up to 2176 bit operands.
Internal Modular Arithmetic Processor (MAP) and
DES accelerator are designed to speed up crypto-
graphic calculations using Public Key Algorithms
and Secret Key Algorithms.
As with all the other ST19W products, serial inter-
faces fully compatible with the ISO7816 standard
for Smartcard applications are available.
This product includes one other interface: I2C
(Fully compatible with Phillips I2C spec rev 2.1)
A CRC calculation block is also available and is di-
rectly accessible by the User.
Figure 2. Block Diagram
SOFTWARE DEVELOPMENT
Software development and firmware generation
(ROM and options) are supported by a compre-
hensive set of development tools, dedicated at de-
velopment and validation of softwares:
Smartcard ICs Emulator,
ST19X simulation package,
ScDevTools pack environment for all
Windows
TM
based stations,
Powerful C/C++ compiler and debugger are
also available (third party tools).
INTERNAL BUS
MEMORY ACCESS FIREWALL
GND
8 BIT
CPU
3 X
8 BIT
TIMERS
CRC
MODULE
CLK
CLOCK
GENE-
RATOR
MODULE
ST ROM, MAP and DES FIREWALL
RAM
USER ROM
ST ROM
and CRYPTO
LIBRARY
EDES
ACCELE-
RATOR
MAP
502
Vcc
GUN A
&
GUN B
SECU-
RITY
ADMIN.
RESET
EEPROM
I/O0
2 SERIAL
I/O
INTER-
FACES
I/O1
SDA
I2C
INTER-
FACE
SCL
IART
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ST19WI18
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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All other names are the property of their respective owners
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