MJD is a corporation which engaged in agency electronic components. MJD Through seventeen years unrimitting efforts,  aspire to provide our customers with world-leading products and service. Now already became a one of the most famous electronic components distributor in China

 The MFRC523’s internal transmitter is able to drive a reader/writer antenna designed to 

communicate with ISO/IEC 14443 A/MIFARE cards and transponders without additional 

active circuitry. The receiver module provides a robust and efficient implementation for 

demodulating and decoding signals from ISO/IEC 14443 A/MIFARE compatible cards and 

transponders. The digital module manages the complete ISO/IEC 14443 A framing and 

error detection (parity and CRC) functionality.

The MFRC523 supports MIFARE Mini, MIFARE 1K and MIFARE 4K (MIFARE Standard) 

products. The MFRC523 supports contactless communication and uses MIFARE higher 

transfer speeds up to 848 kBd in both directions.

The MFRC523 supports all layers of the ISO/IEC 14443 B reader/writer communication 

protocol provided that, external components such as oscillator, power supply and coil, and 

standard protocols such as ISO/IEC 14443-4 and/or ISO/IEC 14443 B anticollision are 

correctly implemented.

Note that the use of this NXP Semiconductors device in accordance with 

ISO/IEC 14443 B may infringe on third-party patent rights. It is the responsibility of the 

user to ensure that appropriate third-party patent licenses exist.

The following host interfaces are provided:

• Serial Peripheral Interface (SPI)

• Serial UART (similar to RS232 with voltage levels dependent on pin voltage supply)

• I

2C-bus interface

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PAYMENTS:

We support the following payment methods:

 1. Paypal

 2. Western Union 

 3. Bank Wire (TT)

 4. MoneyGram

Shipping:

1. MJD needs about 3 BUSINESS DAY to handle the order after received payment. after receiving your payment. Otherwise, we will state it in the invoice in advance.

2. MJD can Ship via your shipping account (DHL / FEDEX / UPS / TNT or others) as your instruction. Or Ship via our shipping account (We have a very good relationship with DHL and FEDEX with very special freight).

3. Regarding the declared value on the package for customs clearance, we are pleased to follow

your wishes, just feel free to inform us when ordering.

4. Any import fees or charges are the buyer's responsibility.

REFUNDS & RETURN:

We offer a warranty on all items that we sold. Item will be tested before ship,it will be in good condition,if there are some problems with the item,feel free to contact us.

Please Email us to notify a defective item. Unless otherwise specified, this item comes with 30 days warranty from the shipment date.

You must contact us before returning any product. All returns must be made within 30 days from this shipment date.Return must be in new condition(the SAME CONDITION as it was sent to you)

Because of wholesale price is different from sample price, our website can not state. Please send your required part number via email Sales@hkmjd.com or hotmail: mingjiada8@hotmail.com to us.  As well as welcome you call us : 0755-83957301  We will send offer for you;  Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support !