ST22N256 datasheet(2/8 Pages) STMICROELECTRONICS

Part #	ST22N256

Description	Smartcard 32-Bit RISC MCU with 256 Kbytes EEPROM Javacard HW Execution & Cryptographic Library

PDF	8 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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2 / 8 page

ST22N256

2/8

MEMORY

I 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

I HIGH PERFORMANCE MEMORY

– Dual memory buses for data and instruction

– Byte, Short (2) and Word (4) load and store

– Address auto-increment

OTHER FEATURES

I HARDWARE ASYNCHRONOUS SERIAL

INTERFACE (ASI)

– 1M baud rate capability

– 2 serial I/O ports compatible ISO 7816-3 T=0

and T=1

I 2 USER CONFIGURABLE 12-BIT AND 16-BIT

TIMERS WITH INTERRUPT

I CENTRAL INTERRUPT CONTROLLER WITH

UP TO 16 INPUT LINES

I EXTERNAL CLOCK FROM 1 MHz TO 10 MHz

I 1.62 V TO 5.5 V SUPPLY VOLTAGE

I TEMPERATURE RANGE -25° C to +85° C

I POWER SAVING STANDBY MODE

I ESD PROTECTION GREATER THAN 5000 V

I UNIQUE IDENTIFICATION PER DIE

I TYPICAL INTERNAL FREQUENCY UP TO

33 MHz

I SOFTWARE CONTROLLED CLOCK

MANAGEMENT

ST22N256 Datasheet(PDF) 2 Page - STMicroelectronics