Smartcard 32-Bit RISC MCU
Description
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ST22N144
Smartcard 32-Bit RISC MCU with 144 Kbytes EEPROM Javacard™ HW Execution & Cryptographic Library
DATA BRIEF
PRODUCT FEATURES
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ADVANCED MEMORY PROTECTION – – – Memory Protection Unit for application firewalling and peripheral access control Domain switching securely controlled by protected Context Stack Native/Java, Code/Data memory attributes with 128-byte granularity Java stack with both 16 and 32-bit accesses User and Supervisor mode stacks Security Context Stack
32-BIT RISC CPU WITH 24-BIT LINEAR MEMORY ADDRESSING 368 KBYTES USER ROM 12 KBYTES USER RAM 144 KBYTES USER EEPROM DUAL INSTRUCTION SET, JAVACARD ™ AND NATIVE 4-STAGE PIPELINE 16 GENERAL PURPOSE 32-BIT REGISTERS, AND SPECIAL REGISTERS 4 MASKABLE INTERRUPT LEVELS SUPERVISOR AND USER MODES CPU SECURITY INSTRUCTIONS – – Dedicated instructions for DES and Triple DES implementation Dedicated instructions (Multiply and Accumulate) for efficient implementation of modular arithmetic and elliptic curves based cryptosystems CRC instruction (ISO 3309 16-bit Checksum)
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32-BIT RISC CPU
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FOUR WORKING STACKS – – –
Figure 1.
Delivery Form
4 4
SECURITY
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4
Micromodule
4
Wafer
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RANDOM NUMBER GENERATOR EEPROM FLASH PROGRAMMING MODE CLOCK AND POWER MANAGEMENT VOLTAGE AND CLOCK FREQUENCY SENSORS
October 2004
For further information contact your local ST sales office.
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ST22N144
CRYPTOGRAPHIC LIBRARY The Crypto Library is provided as a separate ROM area with an access through a unique entry point.
This library provides optimized -for the SmartJ core- and secured implementation of the following features:
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MEMORY
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HIGHLY RELIABLE CMOS EEPROM TECHNOLOGY – – – Error Correction Code for single bit fail within a 32-bit word 10 years data retention, 500,000 Erase/ Write cycles endurance 1 to 128 bytes Erase or Program in 2 ms typical Dual memory buses for data and instruction Byte, Short (2) and Word (4) load and store Address auto...
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