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ST16HF52

All names are the property of their respective owners.

DESCRIPTION

The ST16HF52, a member of the standard ST16

device family, is a serial access microcontroller es-

pecially designed for large volume contactless/

contact Smartcard applications.

The ST16HF52 is based on 8 bit CPU core and in-

cludes on chip memories: 512 Bytes of RAM, 22

KBytes of USER ROM, SYSTEM ROM, and 2048

Bytes of EEPROM.

Both ROM and EEPROM memories can be config-

ured into two sectors. Access rules from any mem-

ory section or sector to any other are set-up by the

User’s defined Memory Access Control Matrix

(MACM).

The HyperProximity

connection between the card and an adequate

reader, as with contact cards. High risk transac-

tional based applications resident on the Smart

card can use the switch to require that the Smart

card be in a HyperProximity

cation to complete execution.

Reliability data related to the ST16HF52 product,

manufactured

using

STMicroelectronics’

ad-

vanced CMOS EEPROM technology, confirm data

retention of up to 10 years and endurance up to

300,000 Erase/Write cycles.

Contact operation is fully compatible with the ISO

standards for Smartcard applications.

Figure 1 Block Diagram

SCP 076c/DS

MEMORY ACCESS CONTROL MATRIX

8 BIT

CPU

SERIAL I/0

INTERFACE

NUMBER

GENERATOR

INTERNAL BUS

RAM

SECT.

A

SECT.

B

SECTOR

A

SECTOR

B

SECTORS

COMBIN.

ROM

V

GENERATION

EEPROM

SECTORS COMBINATIVE

RST

GND

V

I/O1

CLK

SYSTEM

ROM

SECT.

S

SECURITY

LOGIC

AC0

AC1

RF INTERFACE

CC

CC

512

bytes

22 Bytes