ST25R3916B-AQET STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
ST25R3916B-AQET is a high-performance NFC reader IC from STMicroelectronics supporting 13.56 MHz protocols including ISO 14443, ISO 15693, FeliCa, and MIFARE. Operating from 2.6 V to 5.5 V supply, it integrates SPI and I2C interfaces in a compact 36-UFBGA package. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- ST25R3916B-AQET Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.8800(MOQ 100)
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ST25R3916B-AQET?
- Multi-protocol NFC support: ISO 14443 A/B, ISO 15693, FeliCa, and MIFARE in a single IC
- Wide supply voltage range 2.6 V to 5.5 V enables use with 3.3 V and 5 V system rails
- SPI and I2C dual interface options for flexible host microcontroller integration
- Compact 36-UFBGA package with integrated EMV-compliant RF front end for space-constrained designs
What is ST25R3916B-AQET used for?
The ST25R3916B-AQET is designed for NFC reader and writer systems in contactless payment terminals, access control badges, and industrial asset tracking. It suits consumer electronics such as smartphones and tablets that require multi-protocol RFID tag reading at 13.56 MHz. The IC is also used in healthcare wristbands, smart door locks, and IoT gateways where low-power wireless identification over short ranges is essential.
What are the specifications of ST25R3916B-AQET?
| Factory Lead Time | 10Weeks |
| JESD-30 Code | S-XQCC-N32 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.6V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | NFC CONTROLLER |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.30 |
Where can I find the ST25R3916B-AQET datasheet?
ST25R3916B-AQET Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for ST25R3916B-AQET?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which NFC protocols does the ST25R3916B-AQET support, and what operating frequency does it use?
The ST25R3916B-AQET operates at 13.56 MHz and supports ISO 14443 Type A and Type B, ISO 15693, FeliCa, and MIFARE protocols, covering all mainstream contactless card and tag standards used in payment and access-control systems. This multi-protocol capability allows a single IC to replace multiple discrete readers.
Can the ST25R3916B-AQET be powered from a 3.3 V microcontroller rail in a battery-backed access control panel?
Yes. The ST25R3916B-AQET accepts a supply voltage of 2.6 V to 5.5 V, making it fully compatible with a 3.3 V rail. In an access-control panel drawing from a lead-acid battery backup, the wide input range ensures reliable operation even as bus voltage dips under load, removing the need for an additional LDO regulator.
What host-interface options does the ST25R3916B-AQET offer for connecting to an embedded MCU?
The ST25R3916B-AQET provides both SPI and I2C interfaces, giving designers flexibility to match the available peripherals on their host MCU. SPI enables faster data transfers at several MHz, while I2C reduces pin count to 2-wire communication, which is valuable in compact IoT sensor nodes with limited GPIO.
How compact is the ST25R3916B-AQET package, and does it suit high-density PCB layouts in wearable NFC readers?
The ST25R3916B-AQET comes in a 36-UFBGA WLCSP package, which provides a very small footprint ideal for wearable devices, smart cards, and slim industrial tags. The chip-scale form factor minimises board area and keeps the RF front-end parasitics low, supporting efficient antenna matching at 13.56 MHz.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $4.3100 | $431.00 |
| 250+ | $4.2800 | $1070.00 |
| 400+ | $4.0700 | $1628.00 |
| 2000+ | $3.7900 | $7580.00 |
| 4000+ | $2.8800 | $11520.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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