NXP Semiconductors MFRC52301HN1,151

Overview

MFRC52301HN1,151 from NXP Semiconductors is a highly integrated 13.56 MHz contactless reader/writer IC supporting ISO/IEC 14443 A and B protocols, MIFARE Classic encryption (Mini/1K/4K), and up to 848 kBd transfer speed. It integrates analog front-end, digital protocol engine, CRC coprocessor, and 64-byte FIFO, enabling direct antenna interface with minimal external components for access control and transit ticketing systems.

For engineers reviewing the MFRC52301HN1,151 datasheet, MFRC52301HN1,151 pinout, MFRC52301HN1,151 application, or MFRC52301HN1,151 equivalent, this device serves as a complete RFID frontend requiring no external modulator/demodulator, supporting SPI (10 Mbit/s), I²C (up to 3.4 Mbit/s), and UART (up to 1228.8 kBd) host interfaces with hardware-accelerated framing and error detection.

Technical Context

The MFRC52301HN1,151 implements a full ISO/IEC 14443 A/B physical and data-link layer stack - including modified Miller and Manchester encoding, subcarrier demodulation, parity generation/check, and CRC-16 per ISO/IEC 14443-3. Its analog transmitter drives TX1/TX2 directly into a 40 Ω matched antenna without external active circuitry.

Digital interface auto-detection identifies SPI, I²C, or UART on power-up via fixed pin logic states (e.g., EA=0, I2C=0, D7=TX). The internal oscillator accepts 27.12 MHz crystal input at OSCIN/OSCOUT, and programmable timer, interrupt controller, and 8 configurable I/O pins (D1–D7, EA) support flexible system integration.

Key Specifications

Pinout & Package

HVQFN32 (SOT617-1) package: 5 mm × 5 mm × 0.85 mm body, 32-terminal thermally enhanced no-lead quad flat; exposed thermal pad (optional DVSS connection).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MFRC52301HN1,151, MFRC52202HN1,151 offers higher reliability in harsh ESD environments but requires register-level firmware adaptation, while SLI1300ATP reduces component count at the expense of host MCU overhead and missing hardware crypto acceleration.

Availability

MFRC52301HN1,151 is available at Aetrix Electronics and suitable for access control systems, public transit fare terminals, and POS payment devices requiring stable component supply across industrial temperature range (−25 °C to +85 °C).

Supply support for MFRC52301HN1,151 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 IoT applications, with core expertise in RFID, NFC, and secure element technologies.

The MFRC523 product line was designed specifically for high-reliability, low-power contactless reader applications in access control, transportation, and payment infrastructure - emphasizing integrated analog performance and multi-protocol flexibility.

FAQ

What host interfaces does the MFRC52301HN1,151 support, and how is interface selection handled?

The MFRC52301HN1,151 supports SPI (10 Mbit/s), I²C (up to 3.4 Mbit/s), and UART (up to 1228.8 kBd). Interface selection occurs automatically after power-on or hard reset by sampling logic levels on EA, I2C, and D1–D7 pins per Table 5 in the datasheet. No firmware configuration is needed to enable the selected interface - the MFRC52301HN1,151 self-configures its serial peripheral controller accordingly.

Does the MFRC52301HN1,151 support MIFARE DESFire EV2 or only Classic variants?

The MFRC52301HN1,151 supports ISO/IEC 14443 A and B protocols at the physical and data-link layers, enabling interoperability with MIFARE DESFire EV2 cards when paired with appropriate host-side application firmware. However, it does not include hardware acceleration for DESFire's AES crypto operations - those are executed in the host MCU. The MFRC52301HN1,151's dedicated MIFARE Classic unit accelerates only Mini/1K/4K authentication.

What is the maximum achievable read range for the MFRC52301HN1,151, and what factors limit it?

The MFRC52301HN1,151 achieves a typical read/write range of up to 50 mm under optimal conditions - defined using a 40 Ω matched antenna, 3.3 V supply, and ambient temperature of 25 °C. Range is limited by antenna geometry and tuning, PCB layout parasitics, supply voltage (performance degrades below 3 V), and environmental RF noise. The internal transmitter delivers up to 100 mA peak current to TX1/TX2, setting the upper bound for magnetic field strength.

How does the MFRC52301HN1,151 handle ISO/IEC 14443 B anti-collision, and is it fully autonomous?

The MFRC52301HN1,151 implements full ISO/IEC 14443 B anti-collision at the physical and protocol level - including REQB/WUPB command transmission, slot management, and UID extraction - but requires host MCU coordination for higher-layer decisions (e.g., selecting a specific card from multiple responses). The digital module handles frame generation, CRC calculation, and timing compliance autonomously; the host initiates commands and parses results via register reads.

Can the MFRC52301HN1,151 operate from a single 3.3 V supply, or are separate analog/digital rails required?

The MFRC52301HN1,151 requires separate analog (VDDA/AVDD), digital (VDDD/DVDD), and transmitter (TVDD) supplies, though all may be sourced from a common 3.3 V rail if properly decoupled. VDDA, VDDD, and VDD(TVDD) must be equal (2.5–3.3 V), while PVDD (1.6–3.6 V) and SVDD (1.6–3.6 V) may differ. Using a single 3.3 V source is electrically valid but demands careful PCB layout with dedicated LDOs or ferrite-bead-filtered traces to prevent noise coupling into sensitive analog sections.