136430

© NXP B.V. 2007. All rights reserved.

Product data sheet

Rev. 3.0 — 14 March 2007

5 of 28

NXP Semiconductors

SL2 ICS50/SL2 ICS51

I•CODE SLI-L/I•CODE SLI-L HC

PUBLIC

6. Block diagram

The SL2 ICS50/SL2 ICS51 IC consists of three major blocks:

Analog RF Interface

Digital Controller

EEPROM

The analog part provides stable supply voltage and demodulates data received from the

reader for being processed by the digital part. Further, the modulation transistor of the

analog part transmits data back to the reader.

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

communication with the EEPROM.

Fig 1. Block diagram of TAG IC