Maker : ATMEL Corporation
Part No. : ATA5570

  Datasheet PDF : ATA5570.pdf
  Cross Reference : ATA5570 Cross Reference
  Buy Component : ATA5570 Find Stock and Price

Shortcut : ATA5570  ATA5575M1  ATA5575M2  ATA5577 

Product Information

Features • • • • • • • • Contactless Read/Write Data Transmission Sensor Input RS > 100 kΩ (Typical) => Data Stream Inverted Radio Frequency fRF from 100 kHz to 150 kHz e5550 Binary Compatible or ATA5570 Extended Mode Small Size, Configurable for ISO/IEC 11784/785 Compatibility 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, Bi-phase, NRZ – Other Options • Password Mode • Maximum 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 Sensor Identification IC ATA5570 Preliminary 1. Description The ATA5570 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 together form a transponder or tag. www.DataSheet4U.com 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 ATA5570 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 COIL1 and COIL2. The IC receives and decodes 100% amplitude-modulated (OOK) pulse-interval-encoded bit streams from the base station or reader. Rev. 4863A–RFID–07/05 2. System Block Diagram Figure 2-1. RFID System Using ATA5570 Tag Transponder Power Reader Baseor station Base station Coil Interface Controller Memory Data ATA5570 3. Pin Configuration Figure 3-1. Pinning SO8 NC COIL1 NC SENS 1 2 3 4 8 7 6 5 NC COIL2 NC VSS Table 3-1. Pin 1 2 3 4 5 6 7 8 Pin Description Symbol NC COIL1 NC SENS VSS NC COIL2 NC Function Not connected Antenna pin 1 Not connected Sensor input Ground Not connected Antenna pin 2 Not connected www.DataSheet4U.com 2 ATA5570 [Preliminary] 4863A–RFID–07/05 ATA5570 [Preliminary] 4. ATA5570 – Building Blocks Figure 4-1. Block Diagram RS VSS SENS POR Modulator Analog front end COIL1 CR Write decoder LR Mode register Memory (264 bit EEPROM) Input register Test logic HV generator Controller COIL2 4.1 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 COIL1 and COIL2 for data transmission from tag to the reader www.DataSheet4U.com • Field gap detector for data transmission from the base station to the tag • ESD protection circuitry 4.2 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). 4.3 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). Bit-rate generator 3 4863A–RFID–07/05 4.4 HV Generator This on-chip charge-pump circuit generates the high voltage required for programming of the EEPROM. 4.5 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. 4.6 Power-On Reset (POR) This circuit delays the IDI...

Link URL