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  • The ST25RU3993 RAIN® (UHF) RFID reader device provides multi-protocol support for the 840-960 MHz UHF band compatible with ISO18000-62 & -63, ISO29143 and to GS1’s EPC UHF Gen2 air interface protocol. 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 equipment such as mobile phones.
    Packaged in a 7x7 mm QFN, the ST25RU3993 is able to deliver very high sensitivity and provides high immunity against the effects of antenna reflection and self-jamming. This is critical in mobile and embedded applications, in which antenna design is often compromised by cost or size constraints. High sensitivity enables the end-products to achieve their required read range while using a simpler and cheaper antenna, thus reducing overall system cost.
    Thanks to its high level of integration, the ST25RU3993 requires only an external 8-bit microcontroller to create a complete RFID reader system, thus eliminating the need for a complex RFID co-processor.

    Key Features

    • 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
    • Tag read rates of up to 700* tags/s (16-bit tag EPC length)

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All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STSW-ST25RU-SDK

      Active

      Software Development Kit for ST25RU3993 based evaluation boards

      ST25 Development Tools ST
      STSW-ST25RU-SDK

      Description:

      Software Development Kit for ST25RU3993 based evaluation boards
    • Part number
      Status
      Description
      Type
      Supplier

      STSW-ST25RU001

      Active

      PC software installer for ST25RU3993-HPEV and ST25RU3993-EVAL

      ST25 - NFC / RFID Software ST
      STSW-ST25RU001

      Description:

      PC software installer for ST25RU3993-HPEV and ST25RU3993-EVAL
    • Part number
      Status
      Description
      Type
      Supplier

      ST25RU3993-EVAL

      Active

      ST25RU3993 reader IC evaluation board

      ST25 NFC/RFID Eval Boards --
      ST25RU3993-EVAL

      Description:

      ST25RU3993 reader IC evaluation board

CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST25RU3993-BQFT
Active
VFQFPN 48 7x7x1.0 Industrial N/A

ST25RU3993-BQFT

Package:

VFQFPN 48 7x7x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 48 7x7x1.0

Grade

Industrial

RoHS Compliance Grade

N/A

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
ST25RU3993-BQFT Available at 4 distributors

Distributor availability ofST25RU3993-BQFT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1379 1 Order Now
ARROW EUROPE 390 0 Order Now
Newark Element14 AMERICA 44 0 Order Now
MOUSER WORLDWIDE 460 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

1379

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

390

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

44

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

460

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

Buy now
Active
EAR99 NEC Tape And Reel VFQFPN 48 7x7x1.0 -40 85 PHILIPPINES 29.0 / 1k

ST25RU3993-BQFT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

29.0 / 1k

Distributor availability ofST25RU3993-BQFT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1379 1 Order Now
ARROW EUROPE 390 0 Order Now
Newark Element14 AMERICA 44 0 Order Now
MOUSER WORLDWIDE 460 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

1379

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

390

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

44

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

460

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

VFQFPN 48 7x7x1.0

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

29.0 / 1k

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors