T555711-DDW Atmel, T555711-DDW Datasheet - Page 14

• Manufacturer Part Number: T555711-DDW
• Description: IC IDIC R/W RFID 330BIT ON-CHIP
• Manufacturer: Atmel
• Series: T555711r

Specifications of T555711-DDW

• Rf Type: Read / Write
• Frequency: 125kHz
• Features: 330-bit EEPROM
• Package / Case: DICE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 5-1.
6. T5557 in Extended Mode (X-mode)
14
* p = page selector
T5557
Modulation
T5557 Functional Diagram
gap
Defeat
In general, the block 0 setting of the master key (bits 1 to 4) to the value “6” or “9” together with
the X-mode bit will enable the extended mode functions.
Any other master key setting will prevent the activation of the T5557 extended mode options,
even when the X-mode bit is set.
Data verification failed
• Master key = “92: Test mode access and extended mode are both enabled.
• Master key = “6”: Any test mode access will be denied but the extended mode is still enabled.
to page 0
Reset
Page 0
single gap
OP(00)
command mode
Page 1
OP(1p)*
Regular-read Mode
Command decode
addr = 1 .. maxblk
Write
Program & Verify
Power-on Reset
Password check
Number of bits
Lock bit check
Setup Modes
OP(10..)
OP(11..)
Write
Start
Gap
AOR = 0
Page 0
gap
AOR = 1
fail
fail
fail
ok
Block-read Mode
OP(01)
addr = current
Direct access OP (1p)*
data = old
data = old
data = old
data = new
if master key
Test-mode
OP (1p)*
Page 0 or 1
<> 6
AOR Mode
4517J–RFID–03/06