This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

ST25R3912-AWLT +BOM

High performance HF reader / NFC initiator for payment applications with 1 W output power

Manufacturer:

STMicroelectronics, Inc
Mfr.Part #:

ST25R3912-AWLT
Datasheet:

ST25R3912-AWLT Datasheet (PDF)
Series:

ST25R
Type:

RFID Reader
Frequency:

13.56MHz
Standards:

FeliCa, ISO 14443, MIFARE, NFC
EDA/CAD Models:

Request Free CAD Models for ST25R3912-AWLT

ST25R3912-AWLT General Description

The ST25R3912 is a highly integrated NFC initiator / HF reader IC, 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 ST25R3912 is positioned perfectly for the infrastructure side of the NFC system, where users need optimal RF performance and flexibility combined with low power.The device is optimized for applications with directly driven antennas. The ST25R3912 is alone in the domain of HF reader ICs as it contains two differential low impedance (1 Ohm) antenna drivers.The ST25R3912 includes several features that make it very suited for low power applications. The presence of a card can be detected by performing a measurement of amplitude or phase of signal on antenna LC tank, and comparing it to the stored reference. It also contain a low power RC oscillator and wake-up timer that can be used to wake up the system after a defined time period, and to check for the presence of a tag using one or more low power detection techniques (phase or amplitude).The ST25R3912 is designed to operate from a wide (2.4 to 5.5 V) power supply range; peripheral interface IO pins support power supply range from 1.65 to 5.5 V.Discovery kit for the ST25R3911B high performanc.

Key Features

ISO 18092 (NFCIP-1) Active P2P
ISO14443A, ISO14443B, ISO15693 and FeliCa™
Supports HBR up to 848 kbit/s PICC to PCD and PCD to PICC framing
Inductive sensing - Wake-up
Automatic modulation index adjustment
AM and PM (I/Q) demodulator channels with automatic selection
Up to 1 W in case of differential output
User selectable and automatic gain control
Transparent and Stream modes to implement MIFARE™ Classic compliant or other custom protocols
Possibility of driving two antennas in single ended mode
Oscillator input capable of operating with 13.56 or 27.12 MHz crystal with fast start-up
6 Mbit/s SPI with 96 bytes FIFO
Wide supply voltage range from 2.4 to 5.5 V
Wide temperature range: -40 °C to 125 °C
VFQFPN32, 5 mm x 5 mm package with wettable flanks
WLCSP, 3.0 mm x 2.8 mm package

Specifications

Category	RF and WirelessRFID, RF Access, Monitoring ICs	Series	ST25R
Type	RFID Reader	Frequency	13.56MHz
Standards	FeliCa, ISO 14443, MIFARE, 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	30
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		feature-svhc-exceeds-threshold	No