Description

The ST21F384 product is a serial access microcontroller specially designed for costeffective secure mobile applications. It is based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 MBytes linear addressing space.

It is manufactured using an advanced highly reliable ST Flash technology. The device includes a DES accelerator.

A serial interface fully compatible with the ISO 7816-3 standard (T = 0 and T = 1) for Smartcard applications is available.

Features

ST21F384 major applications include:

■ Mobile communications (GSM, 3G and CDMA)

■ Java applications

Hardware features

■ Enhanced 8/16-bit CPU core with 16 Mbytes linear addressable memory

■ 7 Kbytes User RAM

■ 384 Kbytes User Flash memory with OTP area:

– 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

■ Asynchronous Receiver Transmitter supporting ISO 7816-3 T=0 and T=1 protocols

■ Two 8-bit timers with interrupt capability

■ 1.8V, 3V and 5V supply voltage ranges

■ External clock frequency from 1 up to 7.5 MHz

■ High performance provided by:

– CPU clock frequency up to 22 MHz

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

■ Current consumption complies with GSM and ETSI specifications

■ Power-saving Standby state

■ Contact assignment compatible ISO 7816-2

■ ESD protection greater than 4 kV (HBM)

Software features

■ Flash Loader

■ Flash drivers

Security features

■ Monitoring of environmental parameters

■ Protection against faults

■ ISO 3309 CRC calculation block

■ Cryptographic performances(1):

– Triple DES (with keys loaded): 9.3 µs

– Single DES (with keys loaded): 3.1 µs

■ True Random Number Generator

■ Unique serial number on each die

■ Hardware DES accelerator