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NXP Semiconductors MF1SEP1031DUD/03V
- Part No.:
- MF1SEP1031DUD/03V
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- Die
- Datasheet:
-
MF1SEP1031DUD/03V.pdf
- Description:
- IC RFID TRANSP 13.56MHZ DIE
- Quantity:
- Payment:
- Shipping:
Inventory:2,468
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Product details
Overview
MF1SEP1031DUD/03V 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 organized in 16 sectors, AES-128 authentication in Security Level 3, 4-byte NUID, and 17 pF input capacitance. It enables seamless migration in public transport and access control systems requiring pre-issuance of AES-ready cards into legacy infrastructure.
For engineers reviewing the MF1SEP1031DUD/03V datasheet, MF1SEP1031DUD/03V pinout, MF1SEP1031DUD/03V application, or MF1SEP1031DUD/03V equivalent, key selection considerations include UID length (4-byte NUID), SL1/SL3 dual-mode operation, linear memory structure compatibility with MIFARE Classic, anti-tearing for AES key updates, and ISO/IEC 14443-3A/14443-4 protocol support.
Technical Context
The MF1SEP1031DUD/03V operates across three security levels: SL0 (pre-personalization), SL1 (CRYPTO1-compatible with optional AES auth), and SL3 (AES-only, ISO/IEC 14443-4 T=CL). It supports multi-sector authentication when sectors share identical AES keys, reducing transaction overhead in multi-sector applications.
Memory organization follows MIFARE Classic 1K layout-16 sectors × 4 blocks × 16 bytes-with sector trailers storing access bits and keys. AES keys are stored separately atop data blocks and protected by hardware anti-tearing during write operations, ensuring EEPROM integrity even during field interruption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| EEPROM capacity | 1 kB (16 sectors × 4 blocks × 16 bytes); retains MIFARE Classic 1K memory map for drop-in system integration |
| UID type | 4-byte NUID (non-unique identifier); enables cost-optimized personalization while requiring system-level collision handling |
| Input capacitance | 17 pF (typical); matches standard antenna tuning requirements for 13.56 MHz ISO/IEC 14443-A readers |
| Crypto engine | AES-128 co-processor + CRYPTO1 legacy engine; enables phased migration from CRYPTO1 to AES without reader replacement |
| Data retention | 10 years at 22 °C; ensures long-term validity of stored credentials in transit or access cards |
| Write endurance | 200,000 cycles (typical); supports frequent value-block updates in tolling or loyalty applications |
| Communication speed | Up to 848 kbit/s; enables fast transaction throughput in high-throughput access gates or fare validators |
Pinout & Package
MF1SEP1031DUD/03V is supplied as an 8-inch wafer (sawn, 120 µm thickness) on film frame carrier (FFC), with electronic fail die marking per SECS-II format. It has no external pins - it is a bare die intended for embedding into contactless smart cards or modules via antenna bonding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LA / LB | Antenna coil connections | Differential RF interface for 13.56 MHz inductive coupling; requires external antenna matching network |
Key Features
| Feature | Design Value |
|---|---|
| SL1/SL3 dual-security mode | Enables operational continuity during infrastructure upgrade: SL1 maintains full MIFARE Classic 1K command set while enabling optional AES authenticity checks |
| Virtual Card Support | Allows single physical card to emulate multiple logical cards via UID switching, supporting multi-application deployments (e.g., transit + campus ID) |
| NXP originality check | Hardware-accelerated AES authentication using factory-programmed key verifies genuine NXP silicon, preventing counterfeit card integration |
| Multi-block read/write | Reduces transaction count for bulk data transfers (e.g., credential loading), improving throughput in personalization stations |
| Anti-tearing for AES keys | Guarantees atomic update of 128-bit AES keys in SL3-even if power is lost mid-write-preserving cryptographic integrity |
Applications
| Public Transportation | Access Management |
|---|---|
Use Scenario: Contactless fare payment in metro/bus systems with legacy MIFARE Classic readers. IC Role / Device Role / Timing Role: Secure credential storage and AES-authenticated transaction execution at reader interface layer. Use Value: Enables phased rollout of AES security without replacing installed readers-SL1 maintains full MIFARE Classic 1K interoperability while SL3 readiness allows future infrastructure upgrades. |
Use Scenario: Employee badge granting tiered physical access to office buildings and secure zones. IC Role / Device Role / Timing Role: Tamper-resistant identity token supporting value-block-based privilege escalation (e.g., cafeteria balance + door access). Use Value: Combines access control and micro-payment functions on one card using MIFARE Classic value-block semantics, validated via NXP originality check. |
| 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, authenticated data exchange (up to 848 kbit/s) with minimal latency for drive-through validation. Use Value: Multi-sector authentication in SL3 eliminates repeated sector auth overhead-single AES handshake secures reads/writes across all 16 sectors used for toll history and balance. |
Use Scenario: Unified student ID for library access, meal payments, and lab entry. IC Role / Device Role / Timing Role: Dual-role credential: fixed UID for identity verification, Random ID option for privacy-preserving library checkouts. Use Value: 4-byte NUID reduces personalization cost; Random ID support in SL3 satisfies GDPR-aligned anonymization requirements during non-critical transactions. |
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 |
|---|---|---|---|
| MF1SEP1001DUD/03 | Same die, but with 7-byte UID (globally unique) instead of 4-byte NUID; identical 17 pF input capacitance and SL0/SL1/SL3 functionality | Required where system-level UID uniqueness is mandated (e.g., national ID programs, cross-agency interoperability) | Select MF1SEP1001DUD/03 when global UID uniqueness is required; otherwise MF1SEP1031DUD/03 offers lower personalization cost and smaller UID footprint. |
| MF1SEPH1031DUD/03 | Same 4-byte NUID and FFC packaging, but 70 pF input capacitance-designed for tuned antenna designs with higher coupling efficiency | Suitable for compact form factors (e.g., wearable cards, thin wristbands) where antenna size limits inductance and requires higher Ci for reliable coupling | Choose MF1SEPH1031DUD/03 only when antenna design targets 70 pF resonance; MF1SEP1031DUD/03 is optimized for standard 17 pF reader antenna matching. |
Compared with MF1SEP1001DUD/03 and MF1SEPH1031DUD/03, the MF1SEP1031DUD/03V provides the optimal balance of cost-effective 4-byte NUID personalization and industry-standard 17 pF input capacitance-making it the default choice for high-volume transit and access systems where UID uniqueness is managed at the application layer.
Availability
MF1SEP1031DUD/03V is available at Aetrix Electronics and suitable for public transportation fare collection, physical access management, and electronic toll collection systems requiring stable component supply and long-term lifecycle support.
Supply support for MF1SEP1031DUD/03V 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 specializing in secure connectivity solutions for automotive, industrial, and identification markets, with leadership in contactless IC technology since the introduction of MIFARE.
The MF1SEP1031DUD/03V belongs to the MIFARE Plus SE product line-designed specifically to enable low-risk migration from MIFARE Classic 1K infrastructure to AES-based security while preserving existing reader investments and operational workflows.
FAQ
What is the UID configuration of MF1SEP1031DUD/03V?
The MF1SEP1031DUD/03V is configured with a 4-byte Non-Unique Identifier (NUID), programmed and write-protected at manufacturing. This NUID is not globally unique and must be handled with system-level collision avoidance logic. Unlike the 7-byte UID variant (e.g., MF1SEP1001DUD/03), the NUID reduces personalization complexity and cost-ideal for closed-system deployments like corporate campuses or municipal transit networks where central UID assignment is feasible.
Does MF1SEP1031DUD/03V support both MIFARE Classic and AES protocols simultaneously?
Yes, MF1SEP1031DUD/03V supports dual-mode operation: Security Level 1 (SL1) delivers full MIFARE Classic 1K command compatibility-including MF Authenticate, MF Read, and value-block operations-while optionally enabling AES authentication for enhanced card authenticity verification. In Security Level 3 (SL3), it operates exclusively under ISO/IEC 14443-4 (T=CL) with mandatory AES-128 mutual authentication and MAC-secured commands-ensuring end-to-end data integrity and confidentiality.
How does the anti-tearing mechanism work for AES keys in MF1SEP1031DUD/03V?
The MF1SEP1031DUD/03V implements hardware-enforced anti-tearing for AES key updates in Security Level 3. During a key write operation, the PICC internally manages state consistency across EEPROM pages. If the electromagnetic field is interrupted mid-write, the device guarantees that either the full 128-bit key is successfully written or the prior valid key remains intact-never leaving the key in a partially updated or corrupted state. This ensures cryptographic continuity and prevents authentication failure due to incomplete key programming.
Can MF1SEP1031DUD/03V be used in wearable form factors such as wristbands?
Yes, MF1SEP1031DUD/03V is suitable for wearables when paired with appropriately tuned antennas. Its 17 pF input capacitance aligns with standard reader antenna designs; however, for ultra-thin or constrained-space implementations (e.g., silicone wristbands), designers may need to verify coupling efficiency. For such cases, the MF1SEPH1031DUD/03 variant (70 pF) offers higher input capacitance optimized for miniaturized antennas-though MF1SEP1031DUD/03V remains viable with proper antenna simulation and tuning.
What is the role of the Virtual Card Support feature in MF1SEP1031DUD/03V?
The Virtual Card Support feature in MF1SEP1031DUD/03V enables a single physical card to present different UIDs or application contexts on demand. Using the "Virtual Card Support Last" command, the PCD can query and select among virtual identities-allowing one MF1SEP1031DUD/03V-based card to serve distinct roles (e.g., employee ID + cafeteria card + gym access) without requiring multiple physical tokens. This capability relies on SL3 operation and ISO/IEC 14443-4 protocol compliance.
MF1SEP1031DUD/03V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Bulk
- 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:
- Die
MF1SEP1031DUD/03V FAQ
1.How can I place an order for MF1SEP1031DUD/03V through Aetrix?
Please submit a Request for Quotation (RFQ) for MF1SEP1031DUD/03V 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 MF1SEP1031DUD/03V reliable?
The price and inventory of MF1SEP1031DUD/03V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MF1SEP1031DUD/03V is usually 5 days.
3.What payment methods are accepted for MF1SEP1031DUD/03V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MF1SEP1031DUD/03V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MF1SEP1031DUD/03V?
MF1SEP1031DUD/03V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MF1SEP1031DUD/03V 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 MF1SEP1031DUD/03V?
For technical support, including MF1SEP1031DUD/03V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MF1SEP1031DUD/03V requirements.
6.How does Aetrix verify that MF1SEP1031DUD/03V is sourced from the original manufacturer or authorized distributors?
All MF1SEP1031DUD/03V 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 MF1SEP1031DUD/03V meets industry standards.
7.What is the process for return or replacement of MF1SEP1031DUD/03V?
All MF1SEP1031DUD/03V units undergo pre-shipment inspection (PSI). If there is an issue with MF1SEP1031DUD/03V, 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 MF1SEP1031DUD/03V part is unused and in its original packaging.
Return procedure for MF1SEP1031DUD/03V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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