Link to this headingPassive NFC

  • No Battery uses the RF singal as quick voltage source
    • Uses the scanner to modify and reflect the data.

braid overview of passive rfids

Use the carrier frequency and some modulation to send information back to the reader. send data back, the tag switches its load on and off at 848 kHz (1/16 of the carrier frequency), producing a subcarrier on top of the reader’s signal.

Link to this headingHID Seos (13.56 MHz)

  • Contains a Smart Card
    • Digital Signature Authentication
    • Encrypted
    • Can be added to a Smart Phone

Link to this headingDST (134 kHz)

Link to this headingISO/IEC 14443

  • Used in Biometric passports, Ventra, EMV. NFC

Link to this headingISO/IEC 15693

  • Uses either ASK or FSK
  • Using Manchester Coding

IEC_15693 Documentation

Manufacturer code:

  • 0x01: Motorola
  • 0x02: ST Microelectronics
  • 0x03: Hitachi
  • 0x04: NXP Semiconductors
  • 0x05: Infineon Technologies
  • 0x06: Cylinc
  • 0x07: Texas Instruments Tag-it
  • 0x08: Fujitsu Limited
  • 0x09: Matsushita Electric Industrial
  • 0x0A: NEC
  • 0x0B: Oki Electric
  • 0x0C: Toshiba
  • 0x0D: Mitsubishi Electric
  • 0x0E: Samsung Electronics
  • 0x0F: Hyundai Electronics
  • 0x10: LG Semiconductors
  • 0x12: WISeKey
  • 0x16: EM Microelectronic-Marin
  • 0x1F: Melexis
  • 0x2B: Maxim Integrated
  • 0x33: AMIC
  • 0x39: Silicon Craft Technology
  • 0x44: GenTag, Inc (USA)
  • 0x45: Invengo Information Technology Co.Ltd

Link to this headingGEN2 NTAG21X (NTAG)

Link to this headingICODE (ICODE)

Link to this headingEM4305 (iD2)