Maker : ATMEL Corporation
Part No. : ATA5567

Datasheet PDF : ATA5567.pdf
Cross Reference : ATA5567 Cross Reference
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Shortcut : ATA5567 

Product Information

Features • • • • • • • • • Contactless Read/Write Data Transmission Radio Frequency fRF from 100 kHz to 150 kHz e5550, e5551, T5557 Binary Compatible Extended Mode Small Size, Configurable for ISO/IEC 11784/785 Compatibility 75 pF On-chip Resonant Capacitor (Mask Option) 7 × 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, Bi-phase, 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 Multifunctional 330-bit Read/Write RF Identification IC ATA5567 1. Description The ATA5567 is a contactless R/W IDentification IC (IDIC®) for applications in the 125-kHz frequency range. A single coil, connected to the chip, serves as the IC’s power supply and bi-directional communication interface. The antenna and chip www.DataSheet4U.com together form a transponder or tag. The on-chip 330-bit EEPROM (10 blocks, 33 bits each) can be read and written blockwise from a reader. Block 0 is reserved for setting the operation modes of the ATA5567 tag. Block 7 may contain a password to prevent unauthorized writing. Data is transmitted from the IDIC using load modulation. This is achieved by damping the RF field with a resistive load between the two terminals Coil 1 and Coil 2. The IC receives and decodes 100% amplitude-modulated (OOK) pulse-interval-encoded bit streams from the base station or reader. 4874F–RFID–07/08 2. System Block Diagram Figure 2-1. RFID System Using ATA5567 Tag Transponder Power Reader or Base station Coil interface Controller Memory Data 1) ATA5567 1) Mask option 3. ATA5567 – Building Blocks Figure 3-1. Block Diagram POR Modulation Coil 1 Analog front end Write decoder Mode register Memory (330-bit EEPROM) Controller Bit-rate generator Input register 1) Coil 2 www.DataSheet4U.com 1) Mask option Test logic HV generator 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 bi-directional data communication with the reader. It consists of the following blocks: • Rectifier to generate a DC supply voltage from the AC coil voltage • Clock extractor • Switchable load between Coil 1 and Coil 2 for data transmission from the tag to the reader • Field gap detector for data transmission from the base station to the tag • ESD protection circuitry 2 ATA5567 4874F–RFID–07/08 ATA5567 3.2 Data-rate Generator The data rate is binary programmable to operate at any data rate between RF/2 and RF/128 or equal to any of the fixed e5550/e5551 and T5554 bit rates (RF/8, RF/16, RF/32, RF/40, RF/50, RF/64, RF/100, and RF/128). 3.3 Write Decoder This function decodes the write gaps and verifies the validity of the data stream according to the Atmel e555x write method (pulse interval encoding). 3.4 HV Generator This on-chip charge pump circuit generates the high voltage required for programming of the EEPROM. 3.5 DC Supply Power is externally supplied to the IDIC via the two coil connections. The IC rectifies and regulates this RF source and uses it to generate its supply voltage. 3.6 Power-On Reset (POR) This circuit delays the IDIC functionality until an acceptable voltage threshold has been reached. 3.7 Clock Extraction The clock extraction circuit uses the external RF signal as its internal clock source. 3.8 Controller The control-logic module executes the following functions: • Loads mode register with configuration data from EEPROM block 0 after power-on and also during reading • Controls memory a...

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