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DATA BRIEFING
This is Brief Data from STMicroelectronics. Details are subject to change without notice. For complete data, please contact
your nearest Sales Office or SmartCard Products Divison, Rousset, France. Fax: (+33) 4 42 68 87 29
ST19XG34
Smartcard MCU with 34KBYTES HIGH DENSITY EEPROM
ST19XG34FEATURES
s
ENHANCED 8 BIT CPU WITH EXTENDED
ADDRESSING MODES
s
70K BYTES USER ROM WITH PARTITIONING
s
2K BYTES USER RAM WITH PARTITIONING
s
34K BYTES USER EEPROM WITH
PARTITIONING
Highly reliable CMOS EEPROM submicron
technology
Error Correction Code for single bit fail correc-
tion within a byte
10 year data retention
100,000 Erase/Write cycles endurance
1 to 64 bytes Erase or Program in 2 mS
s
SECURITY FIREWALLS FOR MEMORIES,
s
VERY HIGH SECURITY FEATURES
INCLUDING EEPROM FLASH PROGRAM,
AND CLOCK MANAGEMENT.
s
3x8 BIT TIMERS WITH INTERRUPT
CAPABILITY
s
HARDWARE DES ACCELERATOR
s
CRYPTOGRAPHIC LIBRARY:
DES, triple DES, DESX computations and
CBC chaining mode
s
ISO 3309 CRC CALCULATION BLOCK
s
UP TO 10MHz INTERNAL OPERATING
FREQUENCY AT 5 AND 3 VOLTS
s
UNIQUE SERIAL NUMBER ON EACH DIE
s
POWER SAVING STANDBY MODE
s
CONTACT ASSIGNMENT COMPATIBLE ISO
7816-2
s
2 SERIAL ACCESS I/O'S, ISO 7816-3
COMPATIBLE
s
ESD PROTECTION GREATER THAN 5000V
s
3 TO 5V SUPPLY VOLTAGE RANGE
Figure 1 Delivery Form
(1) Typical values, independant from external clock frequency and
supply voltage.
Function
Speed (1)
Triple DES (with keys loaded)
31
s
Single DES (with keys loaded)
19
s
4
4
4
4
Wafer
Micromodule
Notch
1
September 2000
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HARDWARE DESCRIPTION
The ST19XG34, a member of the ST19 platform,
is a serial access microcontroller especially de-
signed for very large volume and cost effective se-
cure portable applications.
The ST19XG34 is based on a STMicrolectronics 8
bit CPU and includes on chip memories: 70 K
User ROM, 2016-byte User RAM and 34K User
EEPROM with state of the art security features.
ROM, RAM and EEPROM memories can be con-
figured into partitions with customized access
rules.
Figure 2 Block diagram
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 or during the life of the product.
The chip includes a DES accelerator which is ac-
cessible via a cryptographic system ROM soft-
ware library.
A CRC calculation block is also available and is di-
rectly accessible by the User.
This product is manufactured using an advanced
highly reliable ST CMOS EEPROM technology.
As with all the other ST19 products, it is fully com-
patible with the ISO7816 standard for Smartcard
applications.
SOFTWARE DEVELOPMENT
Software development and firmware (ROM code/
options) generation are done with the ST19-HDSX
development system, on Windows NT and Win-
dows 98. Powerfull C/C++ compiler, debugger
and simulator are also available.
SYMMETRICAL ALGORITHMS:
DES, triple DES, DESX computations
CBC chaining mode
Loading / Unloadings from / to registers are se-
cured against SPA
SYSTEM
ROM
LIBRARIES
CRYPTO
AND
SCP 155a/DS
INTERNAL BUS
RESET
SYSTEM
ROM
FIREWALL
MEMORY ACCESS FIREWALL
CLK
I/O
GND
Vcc
RAM
Bytes
2016
EEPROM
34K bytes
USER ROM
70K bytes
SYSTEM
ROM
SERIAL
I/O
INTER-
FACE
8 BIT
CPU
3 X
8 BIT
TIMERS
CLOCK
GENERA-
TOR
MODULE
SECURITY
ADMINISTRATOR
DES
ACCE
LERATOR
GUN A
&
GUN B
CRC
MODULE
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