Nowadays, any modern office has RFID equipment, and employees use cards to check in, open the door, and pass through the access control. But what is the rationale behind this? And how did it happen?

It is because these cards have an RFID mifare chip inside, and at the same time there is an RFID reader adapted to it, which can read the data in the card at a distance of 4 inches. And if the information matches, the employee will be granted access.

If you have this need, choose a suitable adapter chip when selecting RFID products. This article will tell you all the things you need to pay attention to when purchasing.

Table of Contents

What is the Mifare History?

The emergence of MIFARE is very innovative. In order to improve security, it uses non-contact technology to protect the rights and interests of users. In 1994, the technology was introduced to the United States, and today, the invention has spread to many cities around the world. It is also the first ISO/IEC 14443 contactless memory IC equipped with cryptography.

How MIFARE Cards Work?

As long as they are within a certain range, these tags will be detected by the RFID reader, and the RFID reader will read the information inside and implement the preset operation. For example, when an employee needs to punch a card to sign in, and the information in that card does not match the information in the reader, then the sign-in will not be successful.

rfid card

This is just a small part of the functions of the chip. In fact, these chips can be implanted into various materials, such as clothes, jewelry, shoes, key chains, bus cards… It can even be implanted into the human body. There are already people in Switzerland. Starting to implant chips into humans sounds crazy, doesn’t it? But it did succeed.

Why is Necessary to Choose the Correct RFID Mifare Chip?

In different occasions, it is very important to choose different chips. The most important thing is that the right chip can reduce your cost of use. NXP’s MIFARE 13.56MHz high-frequency chip can provide high-quality non-contact identification function. But it is not suitable for all RFID systems, because you not only need an RFID product, but also an adapted RFID system to operate to write information.

Therefore, you should take a moment to read the following content, which analyzes all MIFARE chips on the market, and can help you choose the right one carefully.

Of course, you can also provide information to the appropriate suppliers and let them provide you with the fastest solution – but it is still better to choose by yourself.

RFID MIFARE Chip Standard

First of all, we need to understand the standard of the chip

RFID MIFARE chips contain large amounts of data and can be easily misused by cybercriminals. To avoid this, regulatory bodies, such as ISO, have the mandate to ensure the integrity of data protected by any RFID system.

rfid mifare chip

MIFARE’s IC products have a PKI encryption engine driver to ensure security when used in hazardous environments. Additionally, all of these products are ISO/IEC 14443 compliant and NFC Forum 4 compliant tagging standards.

RFID MIFARE Chip type<Hot!>

MIFARE Classic

rfid mifare photos


NXP’s pioneer MIFARE contactless chip. It complies with the ISO 14443 standard and operates in the frequency range of 13.56 MHz.

Its write/read capabilities can quickly hit the market. It is used in transportation departments, learning institutions, employee cards and corporate access management.

Some key features of this IC include:

– Can use 7-byte unique identifier or 4-byte non-unique identifier

– MIFARE 1k has 1KB, divided into 16 sectors, and MIFARE 4k has 4KB, divided into 40 sectors

-Programmable memory access function

At the same time, this chip is cost-effective, has a wide range of applications, and has a stable effect. It has made outstanding contributions to the cause of transportation and education—however, its protection is weak, and it may be targeted by criminals when important information is involved. So there is the following MIFARE classic EV1

mifire rfid card

MIFARE Classic EV1

This RFID MIFARE chip is an improvement on Pioneer’s classic chip. It is available in 1K and 4K EEPROM memory versions, which guarantees flexibility.

Also, the chip works well within the encryption frequency of 13.56 MHz. Encryption technology provides additional security to prevent data leakage.

MIFARE Classic EV1 has ISO/IEC 14443 certification and an operating range of up to 10 cm. It transfers data at an exceptional speed of up to 106kb/s. Here are its other unique features:

-Enhanced ESD function

-200000 write stamina

– true random number generator

-NXP idea check function

The chip has been used in several fields, including time tracking, access control and public transportation.


The series consists of EV1, EV2 and light contactless ICs. At the same time, it provides a lot of contactless solutions with higher safety factors, and is also frequently used in the fields of micropayment and information transmission. Its advantages are:

– more flexible memory

– Secure data storage

– ISO/IEC 14443A compliant with optional ISO/IEC 7814-4 commands

-NFC tag type 4 compatible

– Has a complete backup system

-At the same time, it also has anti-tear protection to ensure data integrity, and it also has an amazing advantage of 850kbit/s in terms of transmission rate.

rfid mifare photo


In terms of data migration, its compatibility is the best. This feature makes it a very good substitute for updates and iterations, and it can make a difference in various types of smart card applications.

MIFARE Plus chips provide AES security functions for authentication, encryption and data security functions meeting global standards.

At the same time, the product is also divided into two modes, namely MIFARE+EV2 and MIFARE+SE. They are all ISO/IEC 14443 certified. The only difference is that the EV2 has an additional CC EAL5+ certificate. These chips are also widely used in access control, information cards, bus cards and parking lots.

MIFARE Ultralight 

This is another revolution in MIFARE technology. It adopts ultra-light technology while ensuring high capacity of chip information storage and low cost of application programs. It is widely used in event ticketing and membership card projects. It has the following unique features:

-IOS unique identifier

-Limited use of the application, resulting in lower installation and maintenance costs

-Easy integration into existing systems

It has three family members, including:

-MIFARE Ultralight C: It features a 112-bit 3DES security system. It also supports 3DES Cryptography for limited-use applications.

-MIFARE Ultralight EV1: It features a 32-bit password and password acknowledge security system. Its contactless IC with password protection is ideal for paper ticketing and cards.

MIFARE Ultralight Nano. This is a contactless IC with an original programmable signature. This feature enhances security for its users. 

This chip family can be used in hotel rooms and other areas that require access authorization. 

What is the Difference between RFID MIFARE Chips?

When NXP developed the first generation of classic chips, it did not optimize security performance too much. Until they see the business value of this part, they start to develop new products and iterate to meet customers’ needs for security.

The latest chips have more security features, including but not limited to authentication, password protection, and immutable data protection mechanisms.

Therefore, if your industry has high security requirements, you should choose a version other than the classic one.

At the same time, there are the following differences between the MIFARE series

Memory size: The memory range of the MIFARE family is between 40 and 32K bytes. The ultra-light version has an average of 100 bytes, while the MIFARE DESFire EV2 has 32K bytes of memory.

Data processing speed: The communication speed ranges from 106kbps to 848kbps, among which MIFARE DESFire has the best speed.

The UID unique identifier is different: The MIFARE Ultralight has a 7-byte UID while Classic & Plus have 7-byte UID, 4-byte NUID, Random ID. The DESFire has 7-byte UID, Random ID. 

Therefore, when you have plans to purchase equipment or chip cards, you should choose the environment to use according to the characteristics of the chip itself; or you can hand this matter over to a high-quality supplier.


RFID MIFARE chips make it easier to manage enterprises, and they are used in various industries such as transportation cards, library cards, membership cards, and ID cards. When you buy the right card and choose the right chip, you will find that your life becomes more efficient and intelligent.

rfid equipment

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