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ST16CF54 Fiches technique(PDF) 2 Page - STMicroelectronics

No de pièce ST16CF54
Description  Smartcard MCU With 4 KBytes EEPROM 512 Bits Modular Arithmetic Processor
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST16CF54 Fiches technique(HTML) 2 Page - STMicroelectronics

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ST16CF54 Level B
2/3
DESCRIPTION
The ST16CF54 Level B, a member of the ST16
device family, is a serial access microcontroller
especially designed for high volume and cost
competitive Smartcard applications, where high
performance Public Key Algorithms will be imple-
mented, to cut down initialization and communica-
tion costs and to increase security.
Its internal Modular Arithmetic Processor is de-
signed to speed up cryptographic calculations re-
quired in Public Key Algorithms. It processes
hardware modular multiplication and squaring on
various size 32/256/288/384/416/512 bits oper-
and. By using of software (cryptographic firmware
library) this calculation can be extended for any
size of operand from 3 to 1024 bits. The
ST16CF54 Level B is based on an ST 8 bit CPU
core including on-chip memories: 512 Bytes of
RAM, 16 KBytes of USER ROM and 4 KBytes of
EEPROM.
Both ROM and EEPROM memories can be con-
figured into two sectors. Access rules from any
memory section (sector) to another are setup by
the User defined Memory Access Control Matrix.
In addition, to reinforce the security of this product,
an hardware mechanism called SRAC (SYSTEM
ROM Access Control) has been implemented. It
protects against unauthorized access to both
SYSTEM ROM and MAP.
Reliability data related to the ST16CF54 Level B
product, manufactured using ST’s advanced
CMOS EEPROM technology, confirm data reten-
tion of up to 10 years and endurance up to
100,000 Erase/Write cycles.
As all other ST16 family members, it is fully com-
patible with the ISO standards for Smartcard ap-
plications.
Software development and firmware (ROM code,
options) generation are completed by the ST16-
19HDS development system.
The ST16CF54 Level B can be delivered either as
unsawn or sawn wafers, 180 or 275 micron thick-
ness as well as in micromodule package.
Figure 1 Block Diagram
SCP 096a/DS
MEMORY ACCESS CONTROL MATRIX
8 BIT
CPU
512
BYTES
SERIAL I/0's
INTERFACE
DATA
REGISTER
INTERNAL BUS
RAM
SECT.
A
SECT.
B
SECTOR
A
SECTOR
B
8K BYTES
SYSTEM
ROM
CRYPTO
LIBRARY
V
GENERATION
EEPROM 4K BYTES
SECTORS COMBINATIVE
I/O2
I/O1
CONTROL
REGISTER
SECURITY
LOGIC
WITH
NUMBER
GENERATOR
32/256/288/384/416/
RST
GND
VCC.
CLK
16K BYTES
USER ROM
SRAC
512 BIT MAP
PP


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