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NXP Semiconductors MF1SEP1001DA4/03J
- Part No.:
- MF1SEP1001DA4/03J
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- MOA4, Smart Card Module
- Datasheet:
-
MF1SEP1001DA4/03J.pdf
- Description:
- IC RFID TRANSP 13.56MHZ PLLMC
- Quantity:
- Payment:
- Shipping:
Inventory:1,498
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Product details
Overview
MF1SEP1001DA4/03J from NXP Semiconductors is a contactless smart card IC implementing MIFARE Plus SE security architecture with full backward compatibility to MIFARE Classic 1K. It features 1 kB EEPROM, AES-128 authentication in Security Level 3, 7-byte UID, and 17 pF input capacitance in SOT500-2 (MOA4) plastic leadless module carrier package. It enables secure migration in public transport ticketing systems.
For engineers reviewing the MF1SEP1001DA4/03J datasheet, MF1SEP1001DA4/03J pinout, MF1SEP1001DA4/03J application, or MF1SEP1001DA4/03J equivalent, this page delivers verified memory organization, security level behavior, antenna interface mapping, UID configuration options, and real-world interoperability constraints with legacy MIFARE infrastructure.
Technical Context
The MF1SEP1001DA4/03J operates across three security levels: SL0 for pre-personalization, SL1 for MIFARE Classic 1K functional compatibility with optional AES authentication, and SL3 for mandatory ISO/IEC 14443-4 protocol use with AES-based 3-pass mutual authentication, encrypted data transfer, and MAC-secured commands/responses. It supports both CRYPTO1 and AES keys per sector - 2 × 48-bit or 2 × 128-bit respectively.
Memory is organized into 16 sectors of 4 blocks (16 bytes each), with sector trailers storing access conditions and keys. The chip implements anti-tearing for AES key updates and sector trailer writes in SL3, and supports multi-sector authentication when identical keys are used across sectors - reducing transaction overhead in large-value applications like electronic toll collection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| EEPROM capacity | 1 kB (16 sectors × 4 blocks × 16 bytes); fixed linear structure compatible with MIFARE Classic 1K memory map |
| Security algorithms | AES-128 for SL3 authentication, integrity, and encryption; CRYPTO1 supported in SL0/SL1 for legacy interoperability |
| UID format | 7-byte UID (factory-programmed, write-protected); supports Random ID mode in SL3 via Virtual Card Support Last command |
| Input capacitance | 17 pF (typical); matched to standard 13.56 MHz antenna tuning requirements for reliable RF coupling |
| Write endurance | 200,000 cycles (typical); excludes anti-tearing protected AES key and sector trailer writes in SL3 |
| Data retention | 10 years at 22 °C; ensures long-term validity of stored credentials in access control and transit cards |
| Communication speed | Up to 848 kbit/s; enables fast value-block operations (Increment/Decrement/Transfer) in high-throughput environments |
Pinout & Package
SOT500-2 (MOA4) plastic leadless module carrier package: 35 mm wide tape format, 120 µm die thickness, designed for embedding into PVC or PET smart cards or proximity modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LA | Antenna coil connection LA | RF input terminal for 13.56 MHz carrier; connects directly to one end of external antenna loop |
| LB | Antenna coil connection LB | RF input terminal for 13.56 MHz carrier; connects directly to opposite end of external antenna loop |
Key Features
| Feature | Design Value |
|---|---|
| Backward compatibility | Full SL1 operation using MIFARE Classic 1K protocol stack - allows drop-in replacement without reader firmware changes |
| Virtual card concept | Enables UID retrieval via Virtual Card Support Last command when Random ID is active, preserving privacy while supporting system-level identification |
| NXP originality check | AES-based authentication against factory-programmed originality key verifies genuine NXP silicon - prevents counterfeit card deployment |
| Multi-block read/write | Single-command access to multiple consecutive blocks improves throughput in loyalty or campus card balance updates |
| Freely configurable access conditions | Per-sector access bits define read/write/transfer rights for value blocks and data blocks - enables granular permission models in multi-application cards |
Applications
| Public Transportation Ticketing | Access Management |
|---|---|
Use Scenario: Contactless fare payment on buses and metro turnstiles with offline validation capability. IC Role / Device Role / Timing Role: Secure credential storage and AES-authenticated transaction execution at point-of-use. Use Value: Enables phased migration from MIFARE Classic 1K infrastructure while maintaining full backward compatibility during transition. |
Use Scenario: Multi-door office building entry with role-based access permissions stored on card. IC Role / Device Role / Timing Role: Tamper-resistant storage of encrypted access profiles and time-based privileges. Use Value: Prevents unauthorized cloning via AES-128 SL3 authentication and anti-tearing protected key updates. |
| Electronic Toll Collection | School & Campus Cards |
Use Scenario: High-speed vehicle identification and account deduction at highway gantries. IC Role / Device Role / Timing Role: Fast-value block operations (Increment/Transfer) with MAC-secured commands to prevent replay attacks. Use Value: Multi-sector authentication reduces per-transaction authentication overhead - critical for sub-500 ms lane clearance times. |
Use Scenario: Integrated student ID supporting library access, meal payments, and lab equipment authorization. IC Role / Device Role / Timing Role: Single-chip platform hosting multiple independent application partitions with isolated key sets. Use Value: Freely configurable access conditions per sector allow segregated budgeting (cafeteria), identity (library), and privilege (labs) domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar contactless smart card IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MF1ICS50 | MIFARE Classic 1K IC; CRYPTO1-only; no AES support; 1 kB EEPROM; 4-byte or 7-byte UID | Lacks SL3 AES security and migration path; limited to legacy-only deployments | Select only for cost-sensitive, non-upgradable MIFARE Classic systems where AES migration is not planned. |
| MF1PLUSX0Y1 | MIFARE Plus X-series; supports SL3+ with extended key management, larger memory options, and enhanced originality checks | Requires updated reader firmware; not backward-compatible with all MIFARE Classic readers in SL1 mode | Choose when future-proofing beyond SL3 is required - e.g., government ID programs needing FIPS 140-2 validated crypto modules. |
Compared with MF1ICS50, the MF1SEP1001DA4/03J adds AES-128 migration readiness without sacrificing MIFARE Classic interoperability; compared with MF1PLUSX0Y1, it prioritizes seamless SL1 integration over advanced cryptographic extensibility - making it optimal for incremental infrastructure upgrades.
Availability
MF1SEP1001DA4/03J is available at Aetrix Electronics and suitable for public transportation ticketing, physical access control, and electronic toll collection requiring stable component supply and long-term lifecycle assurance.
Supply support for MF1SEP1001DA4/03J includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and identification markets.
The MF1SEP1001DA4/03J belongs to the MIFARE Plus SE product line - engineered specifically to enable low-risk, infrastructure-preserving migration from MIFARE Classic to AES-based security in contactless smart card systems.
FAQ
What security levels does the MF1SEP1001DA4/03J support, and how do they differ?
The MF1SEP1001DA4/03J supports Security Level 0 (pre-personalization), SL1 (MIFARE Classic 1K compatibility with optional AES authentication), and SL3 (AES-128 3-pass authentication, ISO/IEC 14443-4 only). SL1 maintains full command and timing compatibility with legacy readers, while SL3 mandates encrypted, MAC-secured communication and disables the backward-compatibility protocol. MF1SEP1001DA4/03J cannot operate in SL2.
Does the MF1SEP1001DA4/03J support both 4-byte and 7-byte UIDs?
No - the MF1SEP1001DA4/03J is specifically ordered with a 7-byte UID, as confirmed by its ordering code "DA4/03" and Table 2 in the datasheet. The 4-byte NUID variant is designated by part numbers ending in "DUD/03" or "DA4/03" with "1031" in the middle (e.g., MF1SEP1031DA4/03). UID length is fixed at wafer/test and cannot be changed post-manufacture.
Can the MF1SEP1001DA4/03J be used in wearable devices such as wristbands?
Yes - the MF1SEP1001DA4/03J's SOT500-2 (MOA4) package is designed for embedding into flexible substrates including silicone wristbands and thin PVC cards. Its 17 pF input capacitance and 13.56 MHz resonance characteristics ensure reliable RF performance even in curved or constrained mechanical form factors typical of wearables.
How does the anti-tearing mechanism work for AES key updates in the MF1SEP1001DA4/03J?
The MF1SEP1001DA4/03J implements hardware-level anti-tearing for AES key and sector trailer writes in Security Level 3. If power or RF field is lost mid-write, the PICC ensures EEPROM remains in a consistent state - either fully updated or fully unchanged - preventing partial key corruption. This is handled autonomously by the on-chip logic; no host-side recovery protocol is required.
Is the MF1SEP1001DA4/03J pin-compatible with other MIFARE Plus SE variants in SOT500-2 packaging?
Yes - all MIFARE Plus SE variants in MOA4/SOT500-2 packaging (e.g., MF1SEP1031DA4/03, MF1SEPH1001DA4/03) share identical LA/LB antenna pin assignments and mechanical footprint. However, electrical differences exist: MF1SEPH variants have 70 pF input capacitance versus 17 pF in MF1SEP, requiring antenna retuning. MF1SEP1001DA4/03J is not functionally interchangeable with H-variants without RF redesign.
MF1SEP1001DA4/03J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- MOA4, Smart Card Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443
- Interface:
- UART
- Voltage - Supply:
- -
- Operating Temperature:
- -25°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLLMC
MF1SEP1001DA4/03J FAQ
1.How can I place an order for MF1SEP1001DA4/03J through Aetrix?
Please submit a Request for Quotation (RFQ) for MF1SEP1001DA4/03J on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MF1SEP1001DA4/03J reliable?
The price and inventory of MF1SEP1001DA4/03J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MF1SEP1001DA4/03J is usually 5 days.
3.What payment methods are accepted for MF1SEP1001DA4/03J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MF1SEP1001DA4/03J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MF1SEP1001DA4/03J?
MF1SEP1001DA4/03J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MF1SEP1001DA4/03J order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MF1SEP1001DA4/03J?
For technical support, including MF1SEP1001DA4/03J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MF1SEP1001DA4/03J requirements.
6.How does Aetrix verify that MF1SEP1001DA4/03J is sourced from the original manufacturer or authorized distributors?
All MF1SEP1001DA4/03J products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MF1SEP1001DA4/03J meets industry standards.
7.What is the process for return or replacement of MF1SEP1001DA4/03J?
All MF1SEP1001DA4/03J units undergo pre-shipment inspection (PSI). If there is an issue with MF1SEP1001DA4/03J, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MF1SEP1001DA4/03J part is unused and in its original packaging.
Return procedure for MF1SEP1001DA4/03J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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