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  • ST25RU3993-BQFT

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RFID IC, 840 MHz to 960 MHz, Read, Write, ASK, PR-ASK, EPC Class1 Gen2, 3 V to 3.6 V, QFN-48

  • Package/Case :
  • QFN-48
  • Product Categories :
  • RFID, RF Access, Monitoring ICs
  • RoHs Status:
  • Lead free / RoHS Compliant
  • Marking Code:
  • ST25RU3993
  • In-stock:
  • 5000


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ST25RU3993-BQFT Product Details

STMicroelectronics ST25R Series High Performance NFC/RFID Readers are HF & NFC reader solutions that reduce design complexity and cost. The ST25R are ideal for challenging applications with features like Automatic Antenna Tuning (AAT), capacitive wakeup and Dynamic Power Output. The readers offer solutions for cost sensitive applications like gaming, access control and metering. The new ST25R family are part of ST's comprehensive range of NFC & RFID solutions.


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 frequencyhopping, 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 batterypowered 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 endproducts 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.
• 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

ST25RU3993-BQFT Pin Diagram
(Picture:Pinout / Diagram)

Technical Parameters

  • Frequency Min
  • 840MHz
  • Frequency Max
  • 960MHz
  • RFID IC Type
  • Read, Write
  • Programmable Memory
  • -
  • Output Power
  • -
  • RF IC Case Style
  • QFN
  • No. of Pins
  • 48Pins
  • Supply Voltage Min
  • 3V
  • Supply Voltage Max
  • 3.6V
  • Current Consumption
  • 100mA
  • Product Range
  • ST25RU3993 Series
  • MSL
  • MSL 1 - Unlimited

ST25RU3993-BQFT Related Products

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Estimated Delivery Time: Dec 12 - Dec 17 days (choose Expedited at checkout).

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We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

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    Step5: Packaging Boxes

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that ST25RU3993-BQFT is the original manufacturer or agent of ST?
We have a professional business development department to strictly test and verify the qualifications of ST original manufacturers and agents. All ST suppliers must pass the qualification review before they can publish their ST25RU3993-BQFT devices; we pay more attention to the channels and quality of ST25RU3993-BQFT products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ST25RU3993-BQFT chips? Including ST original factory information, RFID, RF Access, Monitoring ICs application, ST25RU3993-BQFT pictures?
You can use Jotrin's intelligent search engine, or filter by NFC ; ST25 NFC ; RFID Tags & Readers ; ST25 NFC ; RFID Readers ; ST25 NFC Readers category, or find it through STMicroelectronics, Inc Information page.
Q: Are the ST's ST25RU3993-BQFT price and stock displayed on the platform accurate?
The ST's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ST25RU3993-BQFT, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of ST25RU3993-BQFT?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ST25RU3993BQFT we delivered, we will accept the replacement or return of the ST25RU3993-BQFT only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of ST25RU3993-BQFT.
(3)The ST25RU3993-BQFT is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as ST25RU3993-BQFT datasheet pdf, ST25RU3993 pin diagram?
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STMicroelectronics, Inc

ST Microelectronics is a global independent semiconductor company and a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications, and that designs, develops, manufactures and markets a broad spectrum of products....
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