SL2S5302FUD datasheet(8/35 Pages) NXP

8 / 35 page

SL2S5302_SL2S5402

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Product data sheet

COMPANY PUBLIC

Rev. 3.2 — 27 August 2012

192132

8 of 35

NXP Semiconductors

SL2S5302; SL2S5402

ICODE SLIX-S

Functional description

8.1 Block description

The ICODE SLIX-S IC consists of three major blocks:

• Analog RF interface

• Digital controller

• EEPROM

The analog section provides stable supply voltage and demodulates data received from

the reader for processing by the digital section. The analog section’s modulation transistor

also transmits data back to the reader.

The digital section includes the state machines, processes the protocol and handles

communication with the EEPROM.

The label requires no internal power supply. Its contactless interface generates the power

supply and the system clock via the resonant circuitry by inductive coupling to the

interrogator. The interface also demodulates data that are transmitted from the

interrogator to the ICODE Label, and modulates the electromagnetic field for data

transmission from the ICODE Label to the interrogator.

Data are stored in a non-volatile memory (EEPROM).

8.2 Memory organization

The 2048 bit EEPROM memory is divided into 64 blocks. A block is the smallest access

unit. Each block consists of 4 bytes (1 block = 32 bits). 4 blocks are summed up to 1 page

for password protection. Bit 0 in each byte represents the least significant bit (LSB) and

bit 7 the most significant bit (MSB), respectively.

The memory is divided into 2 parts:

• Configuration area

– Within this part of the memory all required information is stored, such as UID, write

protection, access control information, passwords, AFI and EAS. This memory

area cannot be directly accessed.

• User memory

– Within the 1280 bit memory area the user data are stored. Direct read/write access

to this part of the memory is possible depending on the related security and write

protection conditions.

SL2S5302FUD Datasheet(PDF) 8 Page - NXP Semiconductors