T555711-TAS Atmel, T555711-TAS Datasheet - Page 17

• 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

6.5
4517J–RFID–03/06
Fast Write
In the optional fast write mode the time between two gaps is nominally 12 field clocks for a “0”
and 27 field clocks for a “1”. When there is no gap for more than 32 field clocks after a previous
gap, the T5557 will exit the write mode. Please refer to
Table 6-2.
Parameters
Start gap
Write gap
Write data in normal
mode
Write data in fast
mode
Fast Write Data Decoding Schemes
Normal write mode
Fast write mode
Remark
“0” data
“1” data
“0” data
“1” data
–
Table 6-2
Symbol
Wn
Wf
S
d
d
d
d
gap
gap
0
1
0
1
gap
and
Figure 4-3 on page
Min.
10
16
48
24
8
8
8
Max.
50
30
20
31
63
15
31
T5557
Unit
8.
FC
FC
FC
FC
FC
FC
FC
17