T555401N-DDW Atmel, T555401N-DDW Datasheet
T555401N-DDW
Specifications of T555401N-DDW
Related parts for T555401N-DDW
T555401N-DDW Summary of contents
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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 Seven Blocks of ...
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Pad Layout Figure 2-2. 3. T5554 Building Blocks Figure 3-1. 3.1 Analog Front End (AFE) The AFE includes all circuits which are directly connected to the coil. It generates the IC’s power supply and handles the bidirectional data communication ...
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Resonance Capacitor The resonance capacitor is integrated on chip. By mask option the value can 210 pF typically. 3.3 Controller The main controller has the following functions: • Load mode register with configuration data from ...
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Modulator The modulator consists of several data encoders in two stages, which may be freely combined to obtain the desired modulation. The basic types of modulation are: • PSK: phase shift: 1) every change; 2) every “1”; 3) every ...
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Memory The memory of the T5554 is a 264-bit EEPROM, which is arranged in 8 blocks of 33 bits each. All 33 bits of a block, including the lock bit, are programmed simultaneously. The programming voltage is generated on-chip. ...
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Figure 3-4. Memory Map of Block reserved lock bit (never transmitted) Key: ----------------------------------- -- AOR Anwer-On-Request BT use Block Terminator ST use Sequence Terminator PWD use Password STOP obey stop header (active low!) BR Bit Rate MS1 ...
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Operating the T5554 4.1 General The basic functions of the T5554 are: supply IC from the coil, read data from the EEPROM to the reader, write data into the IC and program these data into the EEPROM. Several errors ...
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Figure 4-2. Figure 4-3. Terminators Block Sequence Waveforms for different Manchester modulations FSK PSK Terminator not suitable for Biphase modulation Figure 4-4. Read Data Streams and Terminators ST BT off off Loading block 0 off on Loading block 0 on ...
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Figure 4-5. MAXBLK Examples MAXBLK = 5 Loading block 0 MAXBLK = 2 Loading block 0 MAXBLK = 0 Loading block 0 4.6 Maxblock Feature not necessary to read all user data blocks, the MAXBLK field in ...
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Table 4-1. T5554 - Modes of Operation PWD AOR STOP Behavior of Tag after Reset/POR Anticollision mode: Modulation starts after wake-up with a matching PWD • Programming needs valid PWD • AOR allows programing with read protection ...
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Figure 4-7. Anticollision Procedure Using AOR Mode 4576D–RFID–12/06 BASE station init tags with AOR = '1', PWD = '1', Stop = '0' Field OFF -> ON wait for t > 2 "select single tag" send OPCODE + PWD ...
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Figure 4-8. Signals During Writing RF_Field Start Gap Write mode Modulation during read mode Damping Write data Data Clock Field clock Read mode Figure 4-9. Write Data Decoding Schemes Write data decoder Figure 4-10. T5554 – OP-code Formats Standard write ...
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... Write Writing data into the IC occurs via the Atmel write method based on interrupting the RF field with short gaps. The time between two gaps encodes the “0/1” information to be transmitted. 4.12 Start Gap The first gap is the start gap which triggers write mode. In write mode, the damping is perma- nently enabled which eases gap detection ...
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STOP OP-code The STOP OP-code (“11”) is used to disable the modulation until a power-on reset occurs. This feature can be used to have a steady RF field where single transponders are collected one by one. Each IC is ...
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Figure 5-2. Programming Write mode Check Modulation Write Operation Figure 5-3. Coil Voltage after Programming of Block 0 V Coil 1 - Coil 2 Write data into the IC 5.3 Error Handling Several error conditions can ...
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Errors During Programming If writing was successful, the following errors could prevent programming: • The lock bit of the addressed block is set • these cases, programming stops immediately. The IC reverts to read mode, starting ...
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Figure 5-5. Example of Manchester Coding with Data Rate RF/16 4576D–RFID–12/06 T5554 17 ...
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Figure 5-6. Example of Biphase Coding with Data Rate RF/16 T5554 18 4576D–RFID–12/06 ...
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Figure 5-7. Example of FSK Coding with Data Rate RF/40, Subcarrier f 4576D–RFID–12/06 = RF/ RF T5554 19 ...
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Figure 5-8. Example of PSK Coding with Data Rate RF/16 T5554 20 4576D–RFID–12/06 ...
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Figure 5-9. Example of PSK2 Coding with Data Rate RF/16 4576D–RFID–12/06 T5554 21 ...
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Figure 5-10. Example of PSK3 Coding with Data Rate RF/16 T5554 22 4576D–RFID–12/06 ...
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Figure 5-11. Measurement Setup for I Figure 5-12. Simplified Damping Circuit 6. Application Example Figure 6-1. Typical Application Circuit From oscillator 125 kHz To read amplifier 4576D–RFID–12/ 1. Coil 100 Coil 1 Coil 2 100 ...
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... Data retention (1) Programming cycles Supply voltage Coil voltage Resonance capacitor Damping resistor Notes: 1. Since EEPROM performance may be influenced by assembly and packaging, Atmel confirms the parameters for DOW (= die-on-wafer) and ICs assembled in standard package. 2. Typical value selected by mask option. T5554 24 Symbol I coil ...
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... Au-bumped 25 µm chip on sticky tape T555402-DBN T555403-DBN NiAu-bumped 15 µm chip on sticky tape T555404-DBN T555401N-DDW 6” wafer 10. Chip Dimensions Figure 10-1. Chip Dimensions of T5554 4576D–RFID–12/06 Remarks 210 pF capacitor; default programming: all 0; EEPROM memory erased 80 pF capacitor; default programming: all 0; EEPROM memory erased 210 pF capacitor ...
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Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4576D-RFID-12/06 4576C-RFID-12/05 T5554 26 History Put data sheet in a new template Features ...
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