Mifare Classic 1K/4K Chip Analysis: Core Features and Smart Card Application Scenarios Description

In the rapidly developing and upgrading smart card industry, Mifare Classic 1K and 4K chips have become the core components of various RFID smart cards, which are popular due to their stable performance, reasonable cost and flexible adaptability. As a professional smart card manufacturer with 20 years of card making experience, Zhanfeng Smart Card is committed to popularizing professional knowledge of Mifare Classic 1K and 4K chips while providing corresponding high-quality products and services for global customers.

Developed by NXP Semiconductors, Mifare Classic series chips are fully compliant with the ISO/IEC 14443 Type-A international standard, operating at a frequency of 13.56 MHz with a read-write distance of 2.5 to 10 cm. This kind of the card operation is widely applicable to various daily and industrial scenarios all over the world. It can be derived from their names that the biggest difference between Mifare Classic 1K and 4K chips lies in their memory capacity. This difference directly determines their application scope and functional carrying capacity.

Mifare Classic 1K chips, also known as its M1 S50 chips, have a storage capacity of 8Kbit (equivalent to 1KB), which is divided into 16 sectors, and each sector contains 4 blocks (each block is 16 bytes). Among the sectors, the 0th block of the 0th sector is a special manufacturer-specific block, which stores a unique and unchangeable UID (Unique Identifier) for chip identification. Other people can not change the 0th block of the 0th sector, but the other blocks can be used to store data and set access permissions by them through keys A and B. With the advantages of fast read-write speed (1-2ms per read-write operation), long service life (more than 100,000 erasures and 10 years of data retention), Mifare Classic 1K Chip is very suitable for scenarios with moderate data storage needs, such as hotel key cards, community access cards, campus cards and simple membership cards. This area need little storage and cheap smart cards.

Compared with the 1K chip, Mifare Classic 4K chips (M1 S70 chips) have a larger storage capacity of 32Kbit (4KB), consisting of 40 sectors. The first 32 sectors are the same as 1K chips (4 blocks per sector) mention above, and the last 8 sectors have 16 blocks in each sector, providing more storage space for more complex applications. This makes 4K chips ideal for scenarios that require storing more data in the smart card, such as multi-functional campus all-in-one cards integrating catering, access control, book borrowing and utility payment. And the enterprise employee cards that need to record attendance, salary and personal information in the employee card need large storage as well.  Besides, some high-end hotel key cards use the mifare 4K chips to support personalized settings and service information storage. Although they has different applications, both 1K and 4K mifare chips support contactless communication, which is convenient to use and can effectively improve the efficiency of information reading and writing in high-traffic scenarios.

As a 20-year-old source factory of smart cards with RFID chips, Zhanfeng Smart Card has rich experience in the research, development and production of smart cards. Adhere to the principle of quality first, we select original authentic NXP chips to ensure high recognition rate (stable at more than 95%) and sensitive response of each smart card. We cooperate with NXP Semiconductors and product smart cards in our factory, so we can ensure the quality. Our factory is equipped with advanced automatic production equipment and a strict quality control system, covering the whole process from chip selection, substrate processing to card packaging and functional testing, ensuring the stability and reliability of products. Even in complex environments with multiple cards used at the same time, our cards can work well. What' s more, to help you better understand the performance and application effect of Mifare Classic 1K/4K smart cards, we provide free sample delivery service. So our products are sold well at home and abroad.  

Whether you need smart cards for hotels, campuses, enterprises or other scenarios with Mifare Classic 1K/4K Chips, Zhanfeng Smart Card professional team can provide personalized customization solutions and products according to your specific needs. If you are interested in our products, please contact us directly. We are looking forward to cooperating with you and providing you with high-quality smart cards.