ATA556714-DDT Atmel, ATA556714-DDT Datasheet - Page 18

• Manufacturer Part Number: ATA556714-DDT
• Description: RF Wireless Misc 125 kHz (330bit r/w 75pF)
• Manufacturer: Atmel

6.5
18
Fast Write
ATA5567
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 ATA5567 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
Min.
10
16
48
24
8
8
8
Figure 4-3 on page
Max.
50
30
20
31
63
15
31
4874F–RFID–07/08
Unit
FC
FC
FC
FC
FC
FC
FC
8.