RF and Wireless

ST25R3915-AQFT

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STMicroelectronics

NFC / RFID TAG & READER IC, SPI, FELICA, ISO 14443A/14443B/15693/18092, NFC FORUM, 32 PINS, QFN-EP

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DocumentsST25R3915-AQFT | Datasheet +22

RF and Wireless

ST25R3915-AQFT

Active

STMicroelectronics

NFC / RFID TAG & READER IC, SPI, FELICA, ISO 14443A/14443B/15693/18092, NFC FORUM, 32 PINS, QFN-EP

Deep-Dive with AI

DocumentsST25R3915-AQFT | Datasheet +22

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	ST25R3915-AQFT

Frequency	13.56 MHz
Grade	Automotive
Interface	SPI
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Package / Case	32-VFQFN Exposed Pad
Qualification	AEC-Q100
Supplier Device Package	32-QFN (5x5)
Type	RFID Reader
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.4 V

ST25R3915 Series

Automotive high performance HF reader / NFC initiator with 1 W output power

Part	Grade	Supplier Device Package	Interface	Operating Temperature [Max]	Operating Temperature [Min]	Frequency	Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Qualification	Package / Case	Mounting Type
STMicroelectronics ST25R3915-AQFT	Automotive	32-QFN (5x5)	SPI	125 °C	-40 C	13.56 MHz	RFID Reader	5.5 V	2.4 V	AEC-Q100	32-VFQFN Exposed Pad	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	73	$ 4.16
	N/A	1657	$ 6.01
		14154	$ 5.24
Newark	Each (Supplied on Cut Tape)	1	$ 6.01
		10	$ 5.20
		25	$ 4.92
		50	$ 4.73
		100	$ 4.54
		250	$ 4.31
		500	$ 4.15
		1000	$ 3.99

Description

General part information

ST25R3915 Series

The ST25R3914/5 are highly integrated NFC initiators / HF reader ICs for automotive applications, AEC-Q100 grade 1 qualified, including the analog front end (AFE) and a highly integrated data framing system for ISO 18092 (NFCIP-1) initiator, ISO 18092 (NFCIP-1) active target, ISO 14443A and B reader (including high bit rates), ISO 15693 reader and FeliCa™ reader. Implementation of other standard and custom protocols like MIFARE™ Classic is possible using the AFE and implementing framing in the external microcontroller (Stream and Transparent modes).

The ST25R3914/5 are positioned perfectly for the infrastructure side of the NFC system, where users need optimal RF performance and flexibility combined with low power.

Thanks to automatic antenna tuning (AAT) technology, the devices are optimized for applications with directly driven antennas. The ST25R3914/5 are alone in the domain of HF reader ICs as they contain two differential low impedance (1 Ohm) antenna drivers.