EAX70191101 - NFC reader LG - Free user manual and instructions

Product Type	NFC Reader
Brand	LG
Model	EAX70191101
Dimensions (L x W)	90 mm x 60 mm
Estimated Weight	20 g
Power Supply	3.0 V to 3.6 V DC
Operating Temperature	-35 °C to 55 °C
Operating Humidity	Up to 95% RH
Supported RF Protocols	NFCIP-1/2, ISO/IEC 14443A, FeliCa, MIFARE Classic, ISO/IEC 15693
Host Interface	High-speed I2C, NCI
Antenna	Integrated PCB Antenna
Main Functions	Read/write NFC tags, standalone mode, automatic wake-up by RF field
Built-in Memory	Non-volatile for data and code
Maintenance and Cleaning	Wipe with a dry, non-abrasive cloth. Avoid chemicals.
Safety	Do not expose to excessive moisture. Keep out of reach of children.
Spare Parts and Repairability	Sealed module, not repairable. Replace if defective.
General Information	NFC Forum compliant, FCC and IC certified. Marking: Contains FCC ID: BEJEAX70191101

Frequently Asked Questions - EAX70191101 LG

How to connect the NFC reader EAX70191101 to a microcontroller?

The module uses a high-speed I2C interface. Connect the SDA and SCL pins to your microcontroller, as well as VCC (3.3 V), GND, and optionally VEN for reset and IRQ for interrupts.

What types of NFC tags are supported?

The reader supports NFC Forum type 1 to 5 tags, including MIFARE Ultralight, Jewel, FeliCa, MIFARE DESFire, and ISO/IEC 15693 (ICODE) tags.

What is the maximum reading distance?

The reading distance depends on the antenna and environment, but it is typically around 2 to 5 cm with the integrated PCB antenna.

Does the reader work with smartphones?

Yes, it can communicate with NFC-compatible smartphones in reader/writer mode or peer-to-peer mode (NFCIP).

How to configure standalone mode?

Standalone mode is activated by firmware. The module can be configured to perform predefined tasks without host intervention, with automatic wake-up via RF field, internal timer, or I2C interface.

What are the acceptable power supply voltages?

The power supply voltage range is 3.0 V to 3.6 V (typically 3.3 V). Do not exceed these values.

Does the module require an external antenna?

No, the module integrates a PCB antenna. You can however use an external antenna if you adapt the matching circuit.

How to reset the module?

Apply a low level on the VEN (Reset) pin to put the module into hard power down state. A high level reactivates it.

What communication protocols are supported?

The module supports NFCIP-1 and NFCIP-2, ISO/IEC 14443A, FeliCa, MIFARE Classic, and ISO/IEC 15693. It uses the NCI interface for host communication.

Is the module compatible with Arduino?

Yes, you can use it with an Arduino board by connecting the I2C pins (SDA/SCL) and using a suitable NFC library, such as the Adafruit PN532 library (with modifications for this module).

USER MANUAL EAX70191101 LG

No	Description	Page
1	Features	2
2	Block Diagram	3
3	Absolute Maximum Ratings	4
4	Operating Conditions	5
5	Pin Description	6
6	Pin characteristics	7
7	Outline Drawing	9

Model Name : EAX70191101LG Electronics Inc.	USER MANUAL	Page: 2/9Revision No.: 1.0
1. FeaturesIncludes NXP ISO/IEC14443-A intellectual property licensing rightsRF protocols supportedNFCIP-1, NFCIP-2 protocolISO/IEC 14443A, NFC Forum T4T modes via host interfaceNFC Forum T3T via host interfaceISO/IEC 14443A, designed according to NFC Forum digital protocol T4T platform and ISO-DEPFeliCa PCD modeMIFARE Classic PCD encryption mechanism (MIFARE Classic 1K/4K)NFC Forum tag 1 to 5 (MIFARE Ultralight, Jewel, Open FeliCa tag, MIFARE DESFire)ISO/IEC 15693/ICODE VCD modeSupported host interfacesNCI protocol interface according to NFC Forum standardizationI2C-bus High-speed modeIntegrated power management unit- 3.0 V to 3.6 V voltage supply range- Support different Hard Power-Down/Standby states activated by firmware- Autonomous mode when host is shut downAutomatic wake-up via RF field, internal timer and I2C-bus interfaceIntegrated non-volatile memory to store data and executable code for customization
Model Name : EAX70191101	USER MANUAL	Page: 3/9 Revision No.: 1.0
LG Electronics Inc.
2. Block Diagram
Host controller VDD(PAD) VEN Optional IRQ Host interface Antenna Antenna antenna matching / tuning circuit Power interface VBAT VDD VDD(TX) Optional PWR request Clock interface

Model Name : EAX70191101	USER MANUAL			Page: 4/9 Revision No.: 1.0
LG Electronics Inc.
3. Absolute Maximum Ratings
Parameter	Min	Max	Unit
Storage Temperature	-40	70	°C
Storage Humidity		95	%
Model Name : EAX70191101LG Electronics Inc.	USER MANUAL			Page: 5/9Revision No.: 1.0
4. Operating Conditions
Parameter	Min	typ	Max	Unit
Ambient Temperature	-35	-	55	°C
Ambient Humidity (40℃)	-	-	95	%
Supply Voltage	3.0	3.3	3.6	Vdc

Model Name : EAX70191101	USER MANUAL	Page: 6/9 Revision No.: 1.0
LG Electronics Inc.

1. Pin Description

no	Pin Name	I/O	Pin Description
1	+33VD	-	supply voltage
2	SDA	I/O	I²C-bus data line
3	SCL	I	I²C-bus clock line
4	IRQ	O	interrupt request output
5	VEN	I	reset pin. Set the device in Hard Power Down
6	GND	-	ground

Model Name : EAX70191101	USER MANUAL	Page : 7/9Revision No. : 1.0
LG Electronics Inc.

6. Pin characteristics

6-1 VEN

Symbol	Parameter	Conditions		Min	Typ	Max	Unit
VIH	HIGH-level input voltage			1.1	-	VBAT	V
VIL	LOW-level input voltage			0	-	0.4	V
IH	HIGH-level input current	VEN voltage = VBAT		-1	-	+1	μA
IIL	LOW-level input current	VEN voltage = 0 V		-1	-	+1	μA
Ci	input capacitance			-	5	-	pF

6-2 IRQ

Symbol	Parameter	Conditions		Min	Typ	Max	Unit
VOH	HIGH-level output voltage	IOH<3 mA		VDD(PAD) - 0.4	-	VDD(PAD)	V
VOL	LOW-level output voltage	IOL<3 mA		0	-	0.4	V
CL	load capacitance			-	-	20	pF
tf	fall time	CL=12 pF max
		• high speed		1	-	3.5	ns
		• slow speed		2	-	10	ns
tr	rise time	CL=12 pF max
		• high speed		1	-	3.5	ns
		• slow speed		2	-	10	ns
Rpd	pull-down resistance		[1]	0.35	-	0.85	MΩ

Model Name : EAX70191101		USER MANUAL			Page : 8/9Revision No. : 1.0
LG Electronics Inc.
6-3 I2C SCL, SDA
Symbol	Parameter	Conditions		Min	Typ	Max	Unit
VOL	LOW-level output voltage	IOL<3 mA	[1]	0	-	0.4	V
CL	load capacitance			-	-	10	pF
tf	fall time	CL=100 pF;Rpull-up=2 kΩ;Standard and Fast mode	[1]	30	-	250	ns
tf	fall time	CL=100 pF;Rpull-up=1 kΩ;High-speed mode	[1]	80	-	110	ns
tr	rise time	CL=100 pF;Rpull-up=2 kΩ;Standard and Fast mode	[1]	30	-	250	ns

Model Name : EAX70191101	USER MANUAL	Page : 9/9 Revision No. : 1.0
LG Electronics Inc.
7. Outline Drawing
60mm ← ○4.2 90mm
Model Name : EAX70191101LG Electronics Inc.	USER MANUAL	Page :Revision No.: 1.0
FCC Regulatory StatementFCC Part 15.19 StatementsThis device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.FCC Part 15.105 statement(Class B)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:- Reorient or relocate the receiving antenna.- Increase the separation between the equipment and receiver.- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.- Consult the dealer or an experienced radio/TV technician for help.FCC Part 15.21 statementAny changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device must not be co-located or operating in conjunction with any other antenna or transmitter.RF Exposure Statement (MPE)The antenna(s) must be installed such that a minimum separation distance of at least 20 cm is maintained between the radiator (antenna) and all persons at all times.Responsible Party Information (Supplier's Declaration of Conformity)Supplier's Declaration of Conformity47 CFR § 2.1077 Compliance InformationResponsible Party - U.S. Contact InformationLG Electronics USA1000 Sylvan Avenue Englewood Cliffs New Jersey, United States, 07632Phone: [phone]
·End Product LabelingThe module is labeled with its own FCC ID and IC Certification Number. If the FCC ID and IC Certification Number are not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. In that case, the final end product must be labeled in a visible area with the following:"Contains FCC ID: BEJEAX70191101"Contains IC: 2703H-EAX70191101·Regulatory notice to host manufacturer according to KDB 996369 D03 OEM Manual This module has been granted modular approval as below listed FCC rule parts.-FCC Rule parts 15C(15.225)Summarize the specific operational use conditions-The OEM integrator should use equivalent antennas which is the same type and equal or less gain then an antenna listed below this instruction manual.RF exposure considerations-The module has been certified for integration into products only by OEM integrators under the following condition:-The antenna(s) must be installed such that a minimum separation distance of at least 20 cm is maintained between the radiator (antenna) and all persons at all times.-The transmitter module must not be co-located or operating in conjunction with any other antenna or transmitter except in accordance with FCC multi-transmitter product procedures.-Mobile useAs long as the three conditions above are met, further transmitter testing will not be required. OEM integrators should provide the minimum separation distance to end users in their end-product manuals.Antennas listThis module is certified with the following integrated antenna.: Internal PCB AntennaAny new antenna type, higher gain than listed antenna should be met the requirements of FCC rule 15.203 and 2.1043 as permissive change procedure.Information on test modes and additional testing requirements-OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, additional transmitter in the host, etc.).Additional testing, Part 15 Subpart B disclaimer-The final host product also requires Part 15 subpart B compliance testing with the modular transmitter installed to be properly authorized for operation as a Part 15 digital device.-The final host product also requires Part 15 subpart B compliance testing with the modular transmitter installed to be properly authorized for operation as a Part 15 digital device
ISED Regulatory Statement· Licensed-exempt StatementThis device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions:1. This device may not cause interference.2. This device must accept any interference, including interference that may cause undesired operation of the device.Lé présente apparéil est conforme aux CNR d'Industrie Canada applicables aux apparéils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l' apparéil ne doit pas produit de brouillage, et (2) l'utilisateur de l' apparéil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromèttre le fonctionnement.RF Exposure Statement (MPE)The antenna(s) must be installed such that a minimum separation distance of at least 20 cm is maintained between the radiator (antenna) and all persons at all times.I'exposition aux RF L'antenne (ou les antennes) doit être installée de façon àMAINTERÀ tout instant une distance minimum de au moins 20 cm entre la source de radiation (l'antenne) et toute personne physiqueEnd product labelingÉ tiquetage du produit final (IC)Le module estétiqueté avec sa propre identification FCC et son propre nombre de certification IC. Si l'identification FCC et le nombre de certification IC ne sont pas visibles lorsque le module est installé à l'intérieur d'un autre dispositif, la partie externe du dispositif dans lequel le module est installé devra égalementprésenter une étiquette faisant référence au module inclus. Dans ce cas, le produit final devra être étiqueté sur une zone visible avec les informations suivantes :Contient module émetteur IC : 2703H-LGSRFR1 / 2703H-LGSFFT1