November 2012

Doc ID 022825 Rev 3

1/13

AN4054

Application note

Comparison of RF addressing modes of

low-density and high-density ISO/IEC 15693 devices

Introduction

This application note highlights the key differences of RF addressing modes between the

products of the ISO/IEC 15693 STMicroelectronics family, which is composed of the dual

interface EEPROM products (M24LRx) and the long range contactless products (LRix).

The memory size is a key point and has an impact on some specific parameters of the RF

(Radio frequency) commands.

Dual interface memory M24LRx overview

a contactless memory powered by the received carrier electromagnetic wave. Thus, its

The M24LRx products are compliant to the ISO/IEC 15693 recommendation for radio-

frequency power and signal interface.

Long range contactless tag LRxK overview

LRxK devices are contactless memory powered by the received carrier electromagnetic

wave with an EEPROM. They are compliant with the ISO/IEC 15693 specification.

Table 1 lists the products concerned by this application note.

.

Table 1.

Applicable products

Type

Applicable products

Dual Interface EEPROM

M24LR04E-R, M24LR64-R, M24LR64E-R, M24LR16E-R

RFID & RF Memory ICs

LRi1K, LRi2K, LRiS2K, LRiS64K

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