NXP Semiconductors MF1S7000XDA4,118

Overview

MF1S7000XDA4,118 from NXP Semiconductors is a contactless smart card IC compliant with ISO/IEC 14443 Type A, featuring 4 kB EEPROM organized in 40 sectors (32×4-block + 8×16-block), 13.56 MHz RF interface, 7-byte UID, and CRYPTO1-based three-pass authentication. It enables <100 ms ticketing transactions in public transport systems.

For engineers reviewing the MF1S7000XDA4,118 datasheet, MF1S7000XDA4,118 pinout, MF1S7000XDA4,118 application, or MF1S7000XDA4,118 equivalent, this page delivers verified technical context, sector-level memory access rules, antenna coupling requirements, UID handling modes, and real-world timing behavior for integration into secure access or transit fare systems.

Technical Context

The MF1S7000XDA4,118 implements a fully integrated RF interface per ISO/IEC 14443A, including modulator/demodulator, rectifier, clock regenerator, POR, and voltage regulator - requiring no external components beyond the antenna coil. Its digital control unit executes anticollision, authentication, and memory operations using on-chip CRYPTO1 cipher logic.

Memory is partitioned into 40 sectors with distinct access structures: first 32 sectors use 4-block layout (including sector trailer at block 3), last 8 use 16-block layout (trailer at block 15); each sector trailer holds two keys and programmable access bits governing read/write/increment/decrement permissions per block type.

Key Specifications

Pinout & Package

MF1S7000XDA4,118 is packaged in MOA4 plastic leadless module carrier (SOT500-2), designed for embedding into smart cards or proximity tags. It interfaces exclusively via an external antenna coil - no electrical pins connect to host logic.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar contactless smart card IC applications.

Compared with MF1S7000XDA4,118, MF1S7000XDA8,118 offers identical functionality in a physically larger module demanding antenna redesign, while MF1S50yyX reduces memory and sector count - trading flexibility for cost in single-role deployments.

Availability

MF1S7000XDA4,118 is available at Aetrix Electronics and suitable for public transport ticketing, physical access control, and electronic toll collection requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MF1S7000XDA4,118 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 leader specializing in secure connectivity solutions for automotive, industrial, and identification markets, with core expertise in RFID, NFC, and trusted execution environments.

The MF1S7000XDA4,118 belongs to the MIFARE Classic 4K product line, engineered specifically for cost-sensitive, high-volume contactless smart card applications demanding proven security, fast transaction times, and seamless ISO/IEC 14443A interoperability.

FAQ

What is the exact memory organization of MF1S7000XDA4,118?

The MF1S7000XDA4,118 contains 4096 bytes of EEPROM organized into 40 sectors: sectors 0–31 each contain 4 blocks (64 bytes), and sectors 32–39 each contain 16 blocks (256 bytes). Each block holds 16 bytes. Sector trailers (block 3 for first 32 sectors, block 15 for last 8) store keys and access conditions. The MF1S7000XDA4,118 uses 7-byte UID stored in block 0 of sector 0.

Does MF1S7000XDA4,118 support both Key A and Key B authentication?

Yes, MF1S7000XDA4,118 supports mutual three-pass authentication using either Key A or Key B per sector, as defined in the sector trailer's access bits. Key A is mandatory; Key B is optional and may be configured as readable or non-readable depending on access condition settings. The MF1S7000XDA4,118 enforces these permissions at hardware level before permitting any memory operation.

What antenna design considerations apply to MF1S7000XDA4,118?

MF1S7000XDA4,118 requires a tuned 13.56 MHz antenna coil connected directly between LA and LB pins. No external capacitors or matching networks are needed - the IC integrates internal capacitance (14.9–19.0 pF) and voltage regulation. Antenna geometry determines operating distance (up to 100 mm) and coupling efficiency; reference designs in NXP AN11005 specify optimal loop size, turns, and PCB layout for MOA4 modules.

How does MF1S7000XDA4,118 handle multiple cards in the reader field?

MF1S7000XDA4,118 implements ISO/IEC 14443-3 compliant anticollision using cascade-level protocols: CL1 identifies cards with first 4 bytes of 7-byte UID, then CL2 resolves remaining 3 bytes. This ensures deterministic selection of individual cards without interference. The MF1S7000XDA4,118 guarantees correct transaction sequencing even with >5 cards present simultaneously in the field.

Is MF1S7000XDA4,118 compatible with ISO/IEC 14443-4 or higher-layer protocols?

No, MF1S7000XDA4,118 is strictly ISO/IEC 14443 Type A Level 2 (physical and data link layers only) and does not implement ISO/IEC 14443-4 T=CL protocol stack or higher-layer command sets. It operates exclusively with MIFARE Classic commands (e.g., 60h auth, 30h read, A0h write) and requires readers supporting native MIFARE Classic mode - not generic ISO/IEC 14443-4 APDU exchanges.