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DATA BRIEF
September 2004
For further information contact your local ST sales office.
ST19WS04
Smartcard MCU
With 4 Kbytes EEPROM
3
PRODUCT FEATURES
I
ENHANCED 8 BIT CPU WITH EXTENDED
ADDRESSING MODES
I
64 KBYTES USER ROM WITH
PARTITIONING
I
2 KBYTES USER RAM WITH
PARTITIONING
I
4 KBYTES USER EEPROM WITH
PARTITIONING plus 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 32 bytes Erase or Program in
1
ms
I
SECURITY FIREWALLS FOR MEMORIES,
and ENHANCED DES ACCELERATOR.
I
VERY HIGH SECURITY FEATURES
INCLUDING EEPROM FLASH
PROGRAMMING AND CLOCK
MANAGEMENT.
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2x8 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
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
10 MHz
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HIGH PERFORMANCE PROVIDED USING
INTERNAL CLOCK FREQUENCY
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UNIQUE SERIAL NUMBER ON EACH DIE
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POWER SAVING STANDBY MODE
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CONTACT ASSIGNMENT COMPATIBLE
ISO 7816-2
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SERIAL ACCESS I/O, ISO 7816-3
COMPATIBLE
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ESD PROTECTION GREATER THAN 5000 V
Figure 1. Delivery Form
Function
Speed
(1)
1. Typical values, independent from external clock
frequency and supply voltage.
Triple DES (with enhanced security)
58.0 s
Single DES (with enhanced security)
43.0 s
259a.ai
Micromodule
Wafer
ST19WS04
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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 op-
tions.
The chip includes an Enhanced DES accelerator
which is accessible via cryptographic software li-
braries located in ST ROM.
As with all the other ST19W products, a serial in-
terface fully compatible with the ISO7816 standard
for Smartcard applications is available.
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 environment for Windows
TM
NT,
2000, XP based stations,
Powerful C/C++ compiler and debugger are
also available (third party tools).
INTERNAL BUS
MEMORY ACCESS FIREWALL
I/O
1 X
SERIAL
INTER-
FACE
GND
8 BIT
CPU
2 X
8 BIT
TIMERS
CRC
MODULE
CLK
CLOCK
GENE-
RATOR
MODULE
ST ROM, and
EDES FIREWALL
RAM
USER ROM
EDES
ACCELE
-RATOR
469
Vcc
GUN A
&
GUN B
SECU-
RITY
ADMIN.
RESET
EEPROM
ST ROM, and
EDES LIBRARY
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ST19WS04
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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