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ST25R3911B-AQFT +BOM

High performance HF reader / NFC initiator with 1.4 W supporting VHBR and AAT

ST25R3911B-AQFT Information

Description

The ST25R39-11B-AQFT is a highly integrated RFID reader IC from STMicroelectronics, designed for NFC (Near Field Communication) and RFID applications. It supports various protocols such as ISO 14443A, ISO 14443B, and FeliCa. This IC features automatic antenna tuning, modulation index adjustment, and demodulator channels with automatic selection. It also has a dynamic power output (DPO) and can drive two antennas in single-ended mode. The ST25R39-11B-AQFT is suitable for various applications such as NFC readers, RFID systems, mobile payment terminals, access control systems, industrial automation, IoT devices, contactless smart cards, and healthcare/pharmaceutical applications.

Features

The ST25R39-11B-AQFT features include:

  • ISO 18092 (NFCIP-1) Active P2P
  • Supports VHBR, capacitive sensing, automatic antenna tuning, modulation index adjustment, AM/PM demodulator channels, and DPO
  • Transparent and stream modes for custom protocols
  • Oscillator input for 13.56 MHz or 27.12 MHz crystal with fast start-up
  • 6 Mbit/s SPI with 96 bytes FIFO
  • Wide supply voltage range (2.4 V to 5.5 V) and temperature range (-40 °C to 125 °C)
  • QFN32 package with wetable flank or wafer delivery

These features make it suitable for various applications such as NFC readers, RFID systems, mobile payment terminals, access control systems, industrial automation, IoT devices, contactless smart cards, and healthcare/pharmaceutical applications.

Package

The package type of ST25R3911B-AQFT is VFQFPN EP-32.

Pinout

The ST25R39-11B-AQFT has a pin count of 32 (VFQFPN EP-32). The pin functions are:

  • VCC: Power supply
  • GND: Ground
  • RST: Reset input
  • INT: Interrupt output
  • SCK: SPI clock input
  • SI: SPI serial input
  • SO: SPI serial output
  • CS: Chip select input
  • AEN: Antenna enable input
  • WUP: Wake-up input
  • PWRDWN: Power-down input
  • VCCP: Power supply for the antenna
  • GNDP: Ground for the antenna

These pins provide the necessary interfaces for communication, power management, and control of the RFID reader.

Manufacturer

The manufacturer of the ST25R3911B-AQFT is STMICROELECTRONICS, which is a semiconductor company that specializes in designing and manufacturing microcontrollers, memory chips, and other electronic components.

Applications

The ST25R3911B-AQFT is commonly used in NFC readers, RFID systems, mobile payment terminals, access control systems, industrial automation, IoT devices, contactless smart cards, and healthcare/pharmaceutical applications.

Equivalent

The equivalent products of ST25R3911B-AQFT are:

  • NXP PN5180
  • Infineon SLIX4-13.56MHZ
  • Texas Instruments TRF7975A
  • Renesas RL78-G3H

These products offer similar RFID reader functionality and can be used as alternatives in various applications.

Specifications

Category RF and WirelessRFID, RF Access, Monitoring ICs Type RFID Reader
Frequency 13.56MHz Standards ISO 14443, NFC
Interface SPI Voltage - Supply 2.4V ~ 5.5V
Operating Temperature -40°C ~ 125°C Mounting Type Surface Mount
Base Product Number ST25 feature-packaging Tape and Reel
feature-pin-count 32 feature-cecc-qualified
feature-esd-protection feature-military No
feature-aec-qualified No feature-aec-qualified-number
feature-auto-motive No feature-p-pap No
feature-eccn-code EAR99 feature-svhc Yes
feature-svhc-exceeds-threshold No Package/Case QFN32

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Ratings and Reviews

More
S
S**l 10/12/2023

Corresponds to the description, after the introduction i will describe in the work.

5
T
T**r 03/26/2023

Thank you, it came quickly. Not yet checked, but the view is good.

14
L
L**a 12/23/2022

Parcel fine, good. But shipping was teribble. Terrible cargo. Not on his stamp. You're expecting something you need. The thing is two weeks away. S the job you will do .....

10
O
O**t 11/16/2020

I ordered not myself, to check not a log.

4

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