ST25R3920-AQWT The STMicroelectronics ST25R3920-AQWT is an NFC/HF RFID reader IC. It features an operating voltage range of 1.65V to 5.5V and supports multiple interface options.
Mfr Part #:

ST25R3920-AQWT

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics ST25R3920-AQWT is an NFC/HF RFID reader IC. It features an operating voltage range of 1.65V to 5.5V and supports multiple interface options.
✓ Total Stock: 7,500 pcs
$ Price Range: $0.99

ST25R3920-AQWT Available from 3 distributors

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4000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
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2,500 pcs
2500 pcs On Request 1 On Request On Request On Request On Request On Request
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ST25R3920-AQWT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Frequency
Interface
Lead Spacing
Mounting Type
Operating Temperature
Standards
Supplier Device Package
Supplier Package
Type
Voltage

ST25R3920-AQWT Description

Short technical summary and product information.

The STMicroelectronics ST25R3920-AQWT is an NFC and HF RFID reader IC designed for various identification applications. It operates within a voltage range of 1.65V to 5.5V and supports key communication standards including FeliCa, ISO 14443, ISO 15693, MIFARE, and NFC.

 

This RFID reader IC features I²C and SPI interfaces for flexible integration into system designs. It is available in a 32-VFQFN Exposed Pad package, suitable for surface mount applications with wettable flank termination.

 

The operating temperature range for the ST25R3920-AQWT is -40°C to 105°C, making it suitable for a variety of environmental conditions. Its frequency of operation is 13.56MHz.

 

This component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1 Unlimited.

ST25R3920-AQWT Quick Information

Product Type: RFID Reader IC
Canonical Name: STMicroelectronics ST25R3920-AQWT NFC / HF RFID Reader IC
Subcategory: RFID, RF Access, Monitoring ICs

ST25R3920-AQWT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ST25R3920-AQWT Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

ST25R3920-AQWT Features

  • NFC / HF RFID reader IC.
  • Supports FeliCa, ISO 14443, ISO 15693, MIFARE, NFC.
  • I²C and SPI interface options.
  • Operates from 1.65V to 5.5V.
  • Surface mountable 32-VFQFN package.

ST25R3920-AQWT Applications

  • Ideal for RFID reader systems.
  • Suitable for NFC applications.
  • Used in access control devices.
  • Applicable for contactless payments.

ST25R3920-AQWT FAQs

6 frequently asked questions generated from this part’s specifications.
What type of RFID device is the ST25R3920-AQWT?

The ST25R3920-AQWT is an RFID Reader/Transponder IC.

What is the operating voltage range for the ST25R3920-AQWT?

The operating voltage range is 1.65V to 5.5V.

What are the supported interface types for this RFID IC?

It supports I²C and SPI interfaces.

Which RFID standards does the ST25R3920-AQWT comply with?

It complies with FeliCa, ISO 14443, ISO 15693, MIFARE, and NFC standards.

What is the operating temperature range?

The operating temperature range is -40°C to 105°C.

What is the package type for the ST25R3920-AQWT?

The package is a 32-VFQFN Exposed Pad.

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