MFG:CH Package Cooled:DIP D/C:07+
MFG: CH
Package Cooled: DIP
D/C: 07+
Description: The T5557 is a contactless R/W IDentification IC (IDIC) for applications in the125 kHz frequency rang...
The T5557 is a contactless R/W IDentification IC (IDIC) for applications in the125 kHz frequency range. A single coil, connected to the chip, serves as the IC'spower supply and bi-directional communication interface. The antenna and chiptogether form a transponder or tag.
The on-chip 330-bit EEPROM (10 blocks, 33 bits each) can be read and written block-wise from a reader. Block 0 is reserved for setting the operation modes of the T5557tag. Block 7 may contain a password to prevent unauthorized writing.Data is transmitted from the IDICusing load modulation. This is achieved by dampingthe RF field with a resistive load between the two terminals Coil 1 and Coil 2. The ICreceives and decodes 100% amplitude modulated (OOK) pulse interval encoded bitstreams from the base station or reader.
|
Parameters |
Symbol |
Value |
Unit |
|
aximum DC current into Coil 1/ Coil 2 |
Icoil |
20 |
mA |
|
Maximum AC current into Coil 1/ Coil 2, f = 125 kHz |
Icoil PP |
20 |
mA |
|
Power dissipation (dice) |
Ptot |
100 |
mW |
|
Electrostatic discharge maximum to |
Vmax |
4000 |
V |
|
Operation ambient temperature range |
Tamb |
-40 to +85 |
°C |
|
Storage temperature range (data retention reduced) |
Tstg |
-40 to +150 |
°C |
• Contactless Read/Write Data Transmission
• Radio Frequency fRF from 100 kHz to 150 kHz
• e5550 Binary Compatible or T5557 Extended Mode
• Small Size, Configurable for ISO/IEC 11784/785 Compatibility
• 75 pF On-chip Resonant Capacitor (Mask Option)
• 7 x 32-bit EEPROM Data Memory Including 32-bit Password
• Separate 64-bit memory for Traceability Data
• 32-bit Configuration Register in EEPROM to Setup:Data Rate- RF/2 to RF/128, Binary Selectable or- Fixed e5550 Data Rates Modulation/Coding- FSK, PSK, Manchester, Biphase, NRZ Other Options- Password Mode- Max Block Feature- Answer-On-Request (AOR) Mode- Inverse Data Output- Direct Access Mode- Sequence Terminator(s)- Write Protection (Through Lock-bit per Block)- Fast Write Method (5 kbps versus 2 kbps)- OTP Functionality- POR Delay up to 67 ms
T5557
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