ST ST23ZR04 User Manual

Secure microcontroller with enhanced security

259a.ai

Micromodule Wafer

with 4 Kbytes EEPROM and dual interface

Features

Hardware features

■ Enhanced 8/16-bit ST23 CPU core with

16 Mbytes of linear addressable memory

■ 92 Kbytes of User ROM

■ 4 Kbytes of User RAM

■ 0.5 Kbytes dedicated RFUART RAM

■ 4 Kbytes of User EEPROM including 128 bytes

of User OTP area:
– Highly reliable CMOS EEPROM submicron

technology
– 30-year data retention at 25°C
– 500,000 Erase/Write cycles endurance at

25° C
– 1 to 32 byte Erase or Program in 1.5 ms

■ Operating temperature: –25° to +85°C (see

restricted test conditions)

■ Three 8-bit timers with watchdog and interrupt

capability

■ 2.7V to 5.5V supply voltages

■ External clock frequency up to 10 MHz

■ High performance provided by:

– CPU clock frequency up to 28 MHz

■ Power-saving Standby state

■ Contact assignment compatible with ISO/IEC

7816-3 standards

■ Asynchronous receiver transmitter (IART) for

high speed serial data support (ISO/IEC
7816-3 T=0/T=1 and EMV™ compliant)

■ ESD protection greater than 5 kV (HBM)

ST23ZR04

Data brief

Security features

■ Active shield

■ Monitoring of environmental parameters

■ Protection mechanisms against faults

■ True random number generator (TRNG)

(AIS-31 Class P2 compliant)

■ 16-bit Cyclic Redundancy Check (CRC)

calculation block (ISO/IEC 13239)

■ Unique serial number on each die

■ AES accelerator

■ Three-key Triple DES accelerator (EDES+)

Development environment

Interface with RF readers supported through a
library of embedded software functions
compatible with ISO/IEC 14443 standard.

Software development and firmware generation
are supported by a comprehensive set of
development tools dedicated to software design
and validation:

■ C compiler, simulator and emulator

Contactless features

■ Complies with ISO/IEC 14443 Type A, B and

B’, and PayPass™ standards

■ 13.56 MHz carrier frequency

■ RF frame up to 512 bytes

■ RFUART (RF universal asynchronous receiver

transmitter) up to 848 Kbps

March 2012 Doc ID 019016 Rev 2 1/4

For further information contact your local STMicroelectronics sales office.

www.st.com

1

Description ST23ZR04

1 Description

ST23ZR04 products are secure microcontrollers specially designed for secure smartcard
applications.

They are based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes
of linear addressing space. ST23ZR04 devices are manufactured using an advanced highly
reliable ST CMOS EEPROM technology.

An RF Interface including an RF universal asynchronous receiver transmitter (RF UART)
enables contactless communication up to 848 Kbps compatible with the ISO/IEC 14443-A
and ISO/IEC 14443-B standard.

Figure 1. ST23ZR04 block diagram

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