SL092030 - NXP.com

Philips Semiconductors Product Specification Revision 3.0 2004 January 30I•CODE UIDSL2 ICS114 MEMORY ORGANIZATIONThe memory has a capacity of 192 bits and is organised in 24 blocks, consisting of 1 byte each. All MSBytes of thedifferent fields (UD, UD CRC 16, UID, CRC 16, Destroy Code) are located at the lowest block addresses of thecorresponding memory blocks.Block # MSB BITS LSB0 MSByte1234567891011121314151617181920212223User Data (UD)UDCRC16UIDCRC16DestroyCodeIdentifier Data (IDD)LSByteR/WROOTPFig.2 Memory Organisation.The I•CODE UID Smart Label IC memory contains, as shown in Figure 2, following elements:• The 152-bit Identifier Data (IDD) consists of 96 bit User Data, 16-bit Cyclic Redundancy Check for the User Data(UD CRC 16) and 40-bit Unique Identifier (UID). The 40-bit UID is programmed by Philips Semiconductors.• A 16-bit Cyclic Redundancy Check for the Unique Identifier (CRC 16).• A 24-bit Destroy Code.7