U3280M_07 ATMEL [ATMEL Corporation], U3280M_07 Datasheet
U3280M_07
Related parts for U3280M_07
U3280M_07 Summary of contents
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Features • Contactless Power Supply and Communication Interface • kbaud Data Rate (R/O) • Power Management for Contactless and Battery Power Supply • Frequency Range 100 kHz to 150 kHz • 16-bit EEPROM • Two-wire ...
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Figure 1-1. Block Diagram U3280M Transponder Interface Energy Damping Coil 1 Rectifier Coil 2 Field/gap Data U3280M 2 Power VField regulator management stage 512-bit EEPROM memory Serial interface detect Bi-phase Clock > extractor modulator MOD NGAP FC VBatt ...
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Pin Configuration Figure 2-1. Pinning Table 2-1. Pin Description Pin Symbol Function 1 VBatt Power supply voltage input to connect a battery Power supply voltage for the microcontroller and EEPROM. At this pin a buffer capacitor (0 ...
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Functional Description 3.1 Transponder Interface The U3280M is a transponder interface IC that can operate microcontrollers using wireless tech- nology and battery independently. Wireless data communication and the power supply are handled via an electromagnetic field and the coil ...
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Digital Input to Control the Damping Stage (MOD) MOD = 0: coil not damped V coil-peak MOD = 1: coil damped V coil-peak CMS Note: 3.3 Field Clock The field clock extractor of the interface makes ...
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U3280M Signals and Timing Figure 4-1. Modulation MOD Coil inputs Figure 4-2. GAP and Modulation Timing Gap detection and battery to field switching V FDON Coil inputs 1. edge used as wakeup signal NGAP Field clock FC Power management ...
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Power Supply The U3280M has a power management that handles two power supply sources. Normally, the IC is supplied by a battery at the V of the device, the field detection circuit switches automatically from V The V DD ...
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Buffer Capacitor C B The buffer capacitor connected at V and the EEPROM during field supply. It smoothes the rectified AC from the coil and buffers the supply voltage during modulation and gaps in the field. The size of ...
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Figure 4-4. Control Byte Format START The control byte follows the START condition and consists of the 5-bit row address, 2 mode con- trol bits and the read/not-write bit. Data Transfer Sequence START • After the STOP condition and before ...
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EEPROM The EEPROM has a size of 512 bits and is organized data to and from the EEPROM, the serial interface must be used. The interface supports one and two-byte write access and one to n-byte ...
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Write One Data Byte START 5.2.1.2 Write Two Data Bytes START 5.2.1.3 Write Control Byte Only START A acknowledge 5.2.1.4 Write Control Bytes Write Low Byte First MSB A4 Byte Order Write High Byte First MSB A4 Byte Order ...
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Read One Data Byte START 5.2.2.2 Read Two Data Bytes START 5.2.2.3 Read n Data Bytes START A acknowledge, N 5.2.2.4 Read Control Bytes Read Low Byte First, Address Increment MSB A4 Byte Order LB(R) Read High Byte First, ...
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Special Modes Table 5-1. Control Byte 1100x111b 1101x111b 11xx0111b 11xx1111b xxxxx110b Data Transfer Sequence for Bi-phase and Manchester Modulation START By using special control bytes, the serial interface can control the modulator stage or the power management. The EEPROM ...
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The antenna coil must be connected with a capacitor as a parallel LC resonant circuit to the Coil 1 and Coil 2 pins of the IC. The resonance frequency f range of 100 kHz to 150 kHz. The correct LC ...
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Absolute Maximum Ratings Stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at any condition beyond those indicated in the ...
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DC Characteristics (Continued) Supply voltage V = 1.8V to 6.5V Parameters Test Conditions Power Management Field-on detection voltage V Field-off detection voltage V Voltage drop at I power-supply switch V Coil Inputs: Coil 1 and Coil ...
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AC Characteristics Supply voltage V = 1.8V to 6.5V Parameters Test Conditions Serial Interface Timing SCL clock frequency Clock low time Clock high time SDA and SCL rise time SDA and SCL fall time START condition ...
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Figure 9-1. Figure 9-2. Figure 9-3. U3280M 18 Typical Reset Delay After Switching V 600 500 400 300 200 100 0 1.0 2.0 3.0 V (V) DD Typical Reset Delay After Switching V 5.5 5.0 4.5 4.0 3.5 3.0 2.5 ...
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Ordering Information Extended Type Number U3280M-NFBY U3280M-NFBG3Y 11. Package Information 4688D–RFID–03/07 Package Remarks SSO16 Tube, Pb-free SSO16 Taped and reeled, Pb-free U3280M 19 ...
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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. 4688D-RFID-03/07 4688C-RFID-09/05 4688B-RFID-12/04 U3280M 20 History Put datasheet in a new template Pb-free ...
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Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 ...