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®
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8 BIT ARCHITECTURE CPU
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32 KBytes of USER ROM WITH
PARTITIONING
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SYST EM ROM FO R L IBRAR I ES
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960 Bytes of RAM WITH PARTITIONING
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8 KBytes of EEPROM WITH PARTI TI ONING
– Highly reliable CMOS EEPROM technology
– 10 year data retention
– 100,000 Erase/Write cycle endurance
– Separate Write and Erase cycles for fast “1”
programming
– 1 to 64 bytes Erase or Program in 1 ms
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SECURITY FIREWALLS FOR MEMORIES
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VERY HIGH SECURITY FEATURES
INCLUDING EEPROM FLASH PROGRAM
AND RAM FLASH CLEAR
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8 BIT TIMER
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SERIAL ACCESS, ISO 7816-3 COMPATIBLE
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3V ± 10% or 5V ± 10% SUPPLY VOLTAGE
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POWER SAVING STANDBY MODE
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UP TO 10 MHz INTERNAL OPERATING
FREQUENCY
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CONTACT ASSIGNMENT COMPATIBLE ISO
7816-2
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ESD PROTECTION GREATER THAN 5000V
ST19SF08
Smar tcard MCU
With 8 KBytes EEPROM
DATA BRIEFING
Micromodule (D4)
Wafer
*CRT: Chinese Remainder Theorem
BD.SF08/9809VP1
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 25 87 29
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ST19SF08
HARDWARE DESCRIPTION
The ST19SF08, a member of the ST19 device
family, is a serial access microcontroller especially
designed for very large volume and cost competitive secure portable objects.
The ST19SF08 is based on a S TMicroelectronics
8 bit CPU core including on-chip memories: 960
Bytes of RAM, 32 KBytes of USER ROM and 8 K
Bytes of EEPROM.
RAM, ROM and EEPROM m em ories can be configured into partitions. Access rules from any
memory partition to another partition are s etup by
the user defined Memory Access Control Logic.
It is manufactured using the highly reliable ST submicron technology.
As all o ther ST19 f am ily m emb ers, it is fully com patible with the ISO standards for Smartcard applications.
SOFTWARE DEVELOPMENT
Software development and firmware (ROM code/
options) generation are completed by the ST16-19
HDS development system.
Figure 1. Bloc k D ia gram
RAM EEPROM
960
Bytes
CLOCK
GENERATOR
MODULE
USER
8 K
Bytes
MEMORY ACCESS FIREWALL
8 BIT
TIMER
SECURITY
ADMINISTRATOR
ROM
32 K
Bytes
INTERNAL BUS
UNPREDICTABLE
NUMBER
GENERATOR
SYSTEM ROM
SYSTEM ROM
FIREWALL
8 BIT
CPU
SERIAL
I/O
INTERFACE
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CLK
RESET
I/OGNDVcc
SCP 101b/DS