T555711-TAS Atmel, T555711-TAS Datasheet - Page 5

• Manufacturer Part Number: T555711-TAS
• Description: IC IDIC R/W RFID 330BIT 8-SOIC
• Manufacturer: Atmel
• Series: T555711r

Specifications of T555711-TAS

• Rf Type: Read / Write
• Frequency: 125kHz
• Features: 330-bit EEPROM
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.11
3.12
4517J–RFID–03/06
Memory
Traceability Data Structure
The memory is a 330-bit EEPROM, which is arranged in 10 blocks of 33 bits each. All 33 bits of
a block, including the lock bit, are programmed simultaneously.
Block 0 of page 0 contains the mode/configuration data, which is not transmitted during regu-
lar-read operations. Block 7 of page 0 may be used as a write protection password.
Bit 0 of every block is the lock bit for that block. Once locked, the block (including the lock bit
itself) is not re-programmable through the RF field again.
Blocks 1 and 2 of page 1 contain traceability data and are transmitted with the modulation
parameters defined in the configuration register after the opcode “11” is issued by the reader
(see
Atmel.
Figure 3-3.
Blocks 1 and 2 of page 1 contain the traceability data and are programmed and locked by Atmel
during production testing. The most significant byte of block 1 is fixed to “E0”hex, the allocation
class (ACL) as defined in ISO/IEC 15963-1. The second byte is therefore defined as the manu-
facturer’s ID of Atmel (= “15”hex). The following 8 bits are used as IC reference byte (ICR bits 47
to 40). The 3 most significant bits define the IC and/or foundry version of the T5557. The lower
5 bits are by default reset (= 00) as the Atmel standard value. Other values may be assigned on
request to high volume customers as tag issuer identification.
The lower 40 bits of the data encode the traceability information of Atmel and conform to a
unique numbering system. These 40 data bits are divided in two sub-groups, a 5-digit lot ID
number, the binary wafer number (5 bit) concatenated with the sequential die number per wafer.
Figure 4-6 on page
Memory Map
10). These tracebility data blocks are programmed and locked by
0
1
1
L
L
L
L
L
L
L
L
Not transmitted
1
User data or password
Configuration data
Traceability data
Traceability data
User data
User data
User data
User data
User data
User data
32 bits
32
Block 2
Block 1
Block 7
Block 6
Block 5
Block 4
Block 3
Block 2
Block 1
Block 0
T5557
5