Data Brief

For further information contact your local STMicroelectronics sales office.

October 2007

Rev 1

1/4

1

ST21F384

Smartcard MCU

with 384 Kbytes of high density Flash memory

Features

ST21F384 major applications include:

Hardware features

linear addressable memory

– 10-year data retention

– 100,000 Erase/Write cycles

– Page granularity of 128 Bytes

– Block granularity: 1 Kbyte

– 128 Bytes of OTP for User

– Page Erase time 3 ms

– Block Erase 1 Kbyte in 15 ms

– Byte programming in 18 µs

– Flash Erase / Write Protection software

programmable on 64 Kbyte Sectors

– Field / Loader mode management

supporting ISO 7816-3 T=0 and T=1 protocols

– CPU clock frequency up to 22 MHz

– External clock multiplier (2x, 3x, and 4x)

ETSI specifications

Software features

Security features

– Triple DES (with keys loaded):

9.3 µs

– Single DES (with keys loaded):

3.1 µs

Development environment

Software development and firmware generation

are supported by a comprehensive set of

development tools dedicated to software design

and validation:

1.

Typical values at 22 MHz

259a.ai

Micromodule

Wafer

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