NXP MIFARE Classic EV1 4k 7UID Smart Card

NXP MIFARE Classic EV1 4k 7UID Smart Card

Buy NXP MIFARE Classic EV1 4k 7UID Smart Card

Buy NXP MIFARE Classic EV1 4K 7UID Smart Card for contactless RFID identification, access control, employee cards, parking systems, transportation, campus cards, event ticketing and other applications that require a 4K MIFARE Classic memory platform with a 7-byte UID.

AFT India supplies NXP MIFARE Classic EV1 4K 7-byte UID smart cards in standard contactless card formats. These cards operate at 13.56 MHz and use ISO/IEC 14443 Type A contactless technology. The MIFARE Classic EV1 4K IC provides 4 kB EEPROM, sector-based memory organization, anticollision and MIFARE CRYPTO1 authentication.

Categories: Contactless/RFID Cards, MIFARE Cards, NXP Semiconductors
Tags: MIFARE, MIFARE Classic
Availability: IN STOCK
Ordering: Volume Pricing Request | Custom Card Quote

NXP MIFARE Classic EV1 4K 7UID Smart Card

The NXP MIFARE Classic EV1 4K is a contactless smart-card IC designed for applications using the established MIFARE Classic platform. The 4K version provides nominal 4 kB EEPROM and is organized into 32 sectors with 4 blocks and 8 sectors with 16 blocks. Each block contains 16 bytes.

For this product configuration, the 7-byte UID is the key identifier requirement. NXP’s documentation distinguishes the 7-byte UID version from the 4-byte NUID version, so buyers should specify the required UID configuration when ordering.

The card supports contactless data and energy transfer without a battery and provides a typical RF data rate of 106 kbit/s. The operating distance can reach approximately 100 mm, depending on the antenna, reader and installation environment.

Key Features

• NXP MIFARE Classic EV1 4K IC
• 7-byte UID / 7UID
• 4 kB EEPROM memory
• 13.56 MHz operating frequency
• ISO/IEC 14443 Type A
• Contactless data and power transfer
• 106 kbit/s RF data rate
• Anticollision support
• MIFARE CRYPTO1 authentication
• Sector-based memory architecture
• User-definable access conditions
• Typical ticketing transaction time below 100 ms
• No battery required
• Standard CR80 card format available
• PVC or composite card construction options
• Suitable for printing, numbering and personalization
• Available for volume purchasing and custom card projects

NXP specifies a 10-year data-retention period and 200,000 write cycles for the EEPROM under the conditions stated in its documentation.

Buyer Specification Table

Specification	NXP MIFARE Classic EV1 4K 7UID
IC	NXP MIFARE Classic EV1 4K
Product family	MIFARE Classic EV1
Memory	4 kB EEPROM
UID	7-byte UID
Alternative UID configuration	4-byte NUID available in the MF1S70 family
Frequency	13.56 MHz
Interface	Contactless
Standard	ISO/IEC 14443 Type A
RF data rate	106 kbit/s
Operating distance	Up to approximately 10 cm, depending on antenna and reader
Authentication	MIFARE CRYPTO1
Memory organization	32 × 4-block sectors + 8 × 16-block sectors
Block size	16 bytes
Anticollision	Yes
Data retention	10 years
Write endurance	200,000 cycles
Power	Passive; no battery
Card size	CR80 / standard card size
Material	PVC / composite PVC-PET options
Typical applications	Access, ID, parking, transport, events, campus and loyalty

The IC-level specifications above are based on NXP’s MF1S70YYX/V1 documentation; finished-card dimensions, materials, antenna performance and personalization depend on the selected card construction.

7-Byte UID vs 4-Byte NUID

One important purchasing consideration is the identifier configuration.

The MIFARE Classic EV1 4K family supports both 7-byte UID and 4-byte NUID variants. NXP specifically identifies the 7-byte UID versions within the MF1S70 product family.

Therefore, if your existing access-control, RFID or identification system requires a 7-byte UID, specify:

NXP MIFARE Classic EV1 4K – 7-byte UID

Do not assume that every MIFARE Classic EV1 4K card has the same UID configuration. The 4-byte NUID and 7-byte UID versions should be treated as separate purchasing requirements.

4K Memory Organization

The 4K EEPROM is arranged as:

• 32 sectors containing 4 blocks each
• 8 sectors containing 16 blocks each
• 16 bytes per block
• Sector trailers contain access-control information
• Data blocks can be configured for read/write or value-block operation

NXP documentation notes that a successful authentication is required before memory operations can be performed.

This architecture makes the card suitable for established MIFARE Classic systems that require more memory than a 1K implementation.

Contactless RFID Operation

The NXP MIFARE Classic EV1 4K communicates through contactless RF technology rather than physical electrical contacts. The card receives both data and operating energy wirelessly, so no battery is required.

Its 13.56 MHz ISO/IEC 14443 Type A interface makes it suitable for compatible RFID readers and contactless systems. Actual read distance depends on the reader, antenna geometry, card construction and surrounding environment.

Applications

NXP MIFARE Classic EV1 4K 7UID Smart Cards can be used for a range of contactless identification and access applications, including:

• Access control
• Employee identification cards
• School and university cards
• Campus access
• Parking cards
• Public transportation
• Event ticketing
• Electronic toll collection
• Loyalty programs
• Internet cafés
• Membership cards
• Physical access management
• Existing MIFARE Classic infrastructure

Market suppliers similarly list MIFARE Classic EV1 4K cards for access control, cashless vending, parking, transportation, education, sports clubs and events.

Custom MIFARE Classic EV1 4K Smart Cards

AFT India can support custom card requirements depending on the project specification, including:

• Custom card printing
• White blank RFID cards
• Full-color artwork
• Card numbering
• Variable data
• Barcode or QR code
• RFID card personalization
• Chip encoding
• Custom card dimensions or construction
• Bulk and volume orders
• Custom RFID card projects

For a custom requirement, provide the chip type, UID requirement, card material, card thickness, artwork, quantity, encoding requirements and application/readers so the card configuration can be matched correctly.

Important Compatibility Note

If you are replacing an existing MIFARE Classic card, confirm the reader, UID format, sector layout, keys, access conditions and application memory requirements before placing a large order.

NXP’s documentation confirms that the MF1S70 family has both 7-byte UID and 4-byte NUID configurations.

For a new security architecture, buyers should also evaluate whether a newer MIFARE product family is more appropriate. Current product references note that MIFARE Classic EV1 is primarily relevant where compatibility with an existing MIFARE Classic deployment is required.

Buy NXP MIFARE Classic EV1 4K 7UID Smart Card

Looking to buy NXP MIFARE Classic EV1 4K 7UID Smart Card for an RFID, access-control, transportation, parking, identification or custom card project?

AFT India provides MIFARE Classic cards for standard and volume requirements.

• IN STOCK
• Volume pricing available
• Custom card quote available
• Custom printing and personalization options
• RFID card encoding available according to project requirements
• Suitable for bulk procurement and integrator projects

Request Volume Pricing or Custom Card Quote

Call / WhatsApp: +91 9673843073

Request Custom Card Quote

For volume orders, send your required quantity, 7-byte UID requirement, card material, card size, printing requirement and encoding/application details for a project-specific quotation.

Call to Customize and Purchase: +91 9673843073 (WhatsApp)