ST25RU3993

UHF RFID Reader IC

ST25RU.jpg
ST25RU.jpg

  • Supply voltage range 3.0 to 3.6 V
  • Frequency hopping support
  • ASK or PR-ASK modulation
  • Phase bit for tag tracking with 8-bit linear RSSI

The ST25RU3993 is an EPC Class 1 Gen 2 RFID reader IC that implements all the relevant protocols, including ISO 18000-6C, the ISO 29143 air-interface protocol for mobile RFID interrogators, and ISO 18000-6A/B for operation in direct mode.It includes an on-chip VCO and a power amplifier, and offers a complete set of RFID features including Dense Reader Mode (DRM) functionality and support for frequency-hopping, low-level transmission coding, low-level decode, data framing and CRC checking.The ST25RU3993 operates at very low-power, making it suitable for use in portable and battery-powered apps.

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  • Supply voltage range 3.0 to 3.6 V
    • Limited operation possible down to 2.7 V
    • Maximum PA supply voltage 4.3 V
    • Peripheral I/O supply range 1.65 to 5.5 V
  • Protocol support for:
    • ISO 18000-6C (EPC Class1 Gen2)
    • ISO 29143 (Air interface for mobile RFID)
    • ISO 18000-6A/B through direct mode
  • DRM: 250 kHz and 320 kHz filters for M4 and M8
  • Integrated supply regulators
  • Frequency hopping support
  • ASK or PR-ASK modulation
  • Automatic I/Q selection
  • Phase bit for tag tracking with 8-bit linear RSSI
  • Temperature range: -40° C to 85° C
  • 48-pin QFN (7x7x0.9 mm) package
  • Battery powered NFC readers
  • Authentification
  • Stationary readers in shops
  • Dongle reader