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Part Number: T5554
Description: The T5554 is a contactless R/W-IDentification IC (IDIC®)* for general-purpose applications in the 125 kH...
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T5554
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General Description
T5554 General Description
The T5554 is a contactless R/W-IDentification IC (IDIC®)* for general-purpose applications in the 125 kHz range. A single coil, connected to the chip, serves as the IC's power supply and bidirectional communication interface. Coil and chip together form a transponder.
The on-chip 264-bit EEPROM (8 blocks 33 bits each) can be read and written blockwise from a base station. The blocks can be protected against overwriting. One block is reserved for setting the operation modes of the IC. Another block can contain a password to prevent unauthorized writing.
Reading occurs by damping the coil by an internal load. There are different bitrates and encoding schemes possible. Writing occurs by interrupting the RF field in a special way.
T5554 Maximum Ratings
| Parameter | Symbol | Value | Unit |
| Maximum DC current into Coil 1/ Coil 2 | Icoil | 10 | mA |
| Maximum AC current into Coil 1/ Coil 2, f = 125 kHz | icoil pp | 20 | mA |
| Power dissipation (dice) 1) | Ptot | 100 | mW |
| Electro-static discharge maximum to MIL-Standard 883 C method 3015 | Vmax | 2000 | V |
| Operating ambient temperature range | Tamb | 40 to +85 | |
| Storage temperature range 2) | Tstg | 40 to +125 | |
| Maximum assembly temperature for less than 5 min 3) | Tsld | +150 |
2) Data retention reduced
3) Assembly temperature of 150°C for less than 5 minutes does not affect the data retention.
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
T5554 Features
Low-power, low-voltage operation
Contactless power supply
Contactless read/write data transmission
Radio Frequency (RF): 100 kHz to 150 kHz
264 bit EEPROM memory in 8 blocks of 33 bits
224 bits in 7 blocks of 32 bits are free for user data
Block write protection
Extensive protection against contactless malprogramming of the EEPROM
On-chip resonance capacitor (70 or 200 pF mask option)
Anticollision using Answer-On-Request (AOR)
Typical < 50 ms to write and verify a block
Other options set by EEPROM:
Bitrate [bit/s]: RF/8, RF/16, RF/32, RF/40,RF/50, RF/64, RF/100, RF/128
Modulation: BIN, FSK, PSK, Manchester,Biphase
Other: Terminator mode, Password mode,AOR mode
Contactless power supply
Contactless read/write data transmission
Radio Frequency (RF): 100 kHz to 150 kHz
264 bit EEPROM memory in 8 blocks of 33 bits
224 bits in 7 blocks of 32 bits are free for user data
Block write protection
Extensive protection against contactless malprogramming of the EEPROM
On-chip resonance capacitor (70 or 200 pF mask option)
Anticollision using Answer-On-Request (AOR)
Typical < 50 ms to write and verify a block
Other options set by EEPROM:
Bitrate [bit/s]: RF/8, RF/16, RF/32, RF/40,RF/50, RF/64, RF/100, RF/128
Modulation: BIN, FSK, PSK, Manchester,Biphase
Other: Terminator mode, Password mode,AOR mode
T5554
PDF/DataSheet Download
- Datasheet: T5554
- File Size: 137792 KB
- Manufacturer: Atmel
- Click here to Download
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The T5552 is a two terminal, contactlessR/W-IDentification IC (IDIC)* for tag applications inthe 125 kHz (± 25 kHz) range. The IC uses the externalRF signal to generate it's own power supply and internalclock reference. It is built into a standard mi...
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