PN5120A0HN1-C2151 - 13.56MHz NFC Frontend, HVQFN-32 | NXP
料号： PN5120A0HN1-C2151 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.18 | $4.18 |
| 10 | $3.76 | $37.60 |
| 100 | $3.35 | $335.00 |
| 500 | $2.99 | $1,495.00 |
| 1,000 | $2.65 | $2,650.00 |
PN5120A0HN1-C2151 概述
What is an NFC frontend IC? An NFC (Near Field Communication) frontend is a mixed-signal transceiver that handles the analog RF modulation/demodulation, protocol framing, and digital host interfacing for 13.56 MHz contactless communication. It sits between an application host MCU and the external NFC antenna, generating the 13.56 MHz carrier field, demodulating load-modulated responses from passive tags, and exposing registers/mailbox data to the host. Within the power management and connectivity hierarchy it belongs to: RFID reader IC -> NFC/RFID transceiver -> wireless connectivity IC -> semiconductor.
Key features of the PN5120A0HN1-C2151 include an outstanding modulation/demodulation concept with full transmitter hardware for driving an external antenna, a buffered output stage for ISO/IEC 14443A up to 424 kbps, hardware support for all relevant NFCIP-1 peer-to-peer modes, and an integrated FIFO buffer. The device exposes flexible host interfaces (SPI up to 10 Mbps, I2C, and UART), supports hard-power-down and soft-power-down modes with low standby current, and integrates a temperature sensor and contactless interface A/D converter.
Technically, the PN5120A0HN1 implements a sophisticated direct-modulation transmitter, dual-receiver architecture (one for ISO 14443A/B and one for FeliCa/ISO 15693), and on-chip data-mode detection. The IC includes a fully integrated data-mode detector and crypto handling for MIFARE Classic, with DMA-style FIFO transfers to offload the host. Internal registers conform to the well-documented PN512 register set, easing firmware portability.
Typical applications include contactless payment terminals, NFC peer-to-peer (NFCIP-1) devices, access control readers, public transit ticket readers, and IoT commissioning/provisioning nodes. The part is also a drop-in for designs that previously used NXP's MF RC522 or CL RC663 in 13.56 MHz contactless roles.
Design consideration: keep the PCB antenna trace geometry matched to the recommended matching network in the datasheet, use a TVS diode for ESD on the antenna pins, and respect the 32-pin HVQFN thermal pad layout with adequate ground vias for thermal dissipation.
直接替换替代料： PN5120A0HN1-C2151 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PN5120A0HN1-C2151 （相同外形与封装尺寸） ——差异在于 Function, Package, Host Interfaces, Operating Temperature, Supported Protocols.
快速对比工具——选择替代料号进行并排对比：
PN5120A0HN1/C1,151
✅ 直接替换✓ 有现货
$4.18 / 个
查看数据手册 →PN5120A0HN1/C2,118
✅ 直接替换📋 参考替代料（不在目录中）
CLRC66301HN
✅ 直接替换📋 参考替代料（不在目录中）
SLRC61002HN
✅ 直接替换📋 参考替代料（不在目录中）
MFRC52202HN1,157
✅ 直接替换✓ 有现货
$4.9 / 个
查看数据手册 →PN5120A0HN1-C2151 规格参数
| 功能 | NFC/RFID reader and transceiver |
| Operating Frequency | 13.56 MHz |
| Supported Protocols | FeliCa, ISO 14443 A/B, ISO 15693, MIFARE Classic, NFCIP-1, NFC Forum Type 1/2/3/4 |
| 电源电压 | 2.5 V to 3.6 V |
| Host Interfaces | I2C, SPI, UART |
| Maximum SPI Clock | 10 MHz |
| Maximum Data Rate | 424 kbps (ISO 14443) |
| 封装 | 32-HVQFN Exposed Pad (5x5 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -30 C to +85 C |
| Modulation Type | Direct modulation (TX), load modulation (RX) |
| Receiver Architecture | Dual receiver (ISO 14443 + FeliCa/ISO 15693) |
| Integrated FIFO | Yes |
| RoHS 状态 | Compliant |
| 引脚数量 | 32 |
PN5120A0HN1-C2151 引脚配置
| 引脚 1 | TX1 — Antenna driver output 1 |
| 引脚 2 | TX2 — Antenna driver output 2 |
| 引脚 3 | AVDD — Analog supply voltage |
| 引脚 4 | AVSS — Analog ground |
| 引脚 5 | RX — Receiver input |
| 引脚 6 | VMID — Mid-rail reference voltage |
| 引脚 7 | PVDD — Pad supply voltage (for TX drivers) |
| 引脚 8 | PVSS — Pad ground |
| 引脚 9 | RSTPD — Reset and power-down control |
| 引脚 10 | IRQ — Interrupt request output |
| 引脚 11 | IF_SEL0 — Host interface select 0 |
| 引脚 12 | IF_SEL1 — Host interface select 1 |
| 引脚 13 | DVDD — Digital supply voltage |
| 引脚 14 | DVSS — Digital ground |
| 引脚 15 | AUX1 — Auxiliary output 1 |
| 引脚 16 | AUX2 — Auxiliary output 2 |
| 引脚 17 | SDA — I2C data / SPI MOSI |
| 引脚 18 | SCL — I2C clock / SPI clock |
| 引脚 19 | NSS — SPI slave select |
| 引脚 20 | MISO — SPI master-in-slave-out |
| 引脚 21 | MOSI — SPI master-out-slave-in |
| 引脚 22 | RXD — UART receive data |
| 引脚 23 | TXD — UART transmit data |
| 引脚 24 | OSCIN — Crystal oscillator input |
| 引脚 25 | OSCOUT — Crystal oscillator output |
| 引脚 26 | TEST — Test pin (tie to GND) |
| 引脚 27 | SIGIN — Signal input for external demodulation |
| 引脚 28 | SIGOUT — Signal output |
| 引脚 29 | TCK — JTAG test clock (boundary scan) |
| 引脚 30 | TMS — JTAG test mode select |
| 引脚 31 | TDI — JTAG test data in |
| 引脚 32 | TDO — JTAG test data out / NC |
典型应用
PN5120A0HN1-C2151 适用于 6 应用s: Contactless Payment Terminals, NFC Peer-to-Peer (NFCIP-1) Devices, Access Control and Door Readers, Public Transit Ticket Readers, IoT Provisioning and Commissioning, Industrial RFID Reader Modules.
Contactless Payment Terminals
The PN5120A0HN1-C2151 enables EMVCo-compliant contactless payment terminals with simultaneous support for ISO 14443 A/B (Visa payWave, Mastercard contactless), FeliCa (Japan/J-Korea transit payments), and NFC mobile wallet peer-to-peer modes. Its 13.56 MHz RF frontend with dual receiver architecture handles high transaction throughput at 424 kbps while the integrated FIFO buffer offloads protocol framing from the secure host MCU. Typical designs place the IC between the application processor and a matched PCB antenna loop, with the IC's 2.5-3.6 V supply driven by an LDO for clean demodulation. The HVQFN-32 footprint suits compact POS terminal enclosures while maintaining 4-wire SPI connectivity to the secure element at up to 10 Mbps.
推荐
NFC Peer-to-Peer (NFCIP-1) Devices
The PN5120A0HN1-C2151 fully implements NFCIP-1 initiator and target modes at 106, 212, and 424 kbps, enabling Android Beam-style file exchange, Wi-Fi/Bluetooth connection handover, and NFC Forum LLCP/SNEP communications. Its hardware handles the 13.56 MHz carrier generation on the initiator side and load-modulation detection on the target side, removing the need for external RF components beyond the matching network. For peer-to-peer designs the IC requires the host MCU to run an NFC Forum LLCP stack, and the antenna geometry must support the slightly different field profile compared to reader-only modes. Typical applications include Android phone accessories, smart-home pairing hubs, and information kiosks.
推荐
Access Control and Door Readers
Access control readers using the PN5120A0HN1-C2151 can interrogate both 13.56 MHz contactless credentials (MIFARE Classic, MIFARE DESFire, ISO 14443A badges) and legacy vicinity cards (ISO 15693 long-range ID badges). The IC's dual receiver architecture lets a single reader support multiple card types without firmware switching, while the integrated hardware crypto accelerator handles MIFARE Classic authentication to offload the door controller MCU. Typical designs use 3-5 W read range with a matched PCB loop antenna, drawing roughly 60-100 mA active from a 3.3 V rail. The HVQFN-32 package and I2C/SPI host interface enable integration into compact mullion-mount reader housings.
推荐
Public Transit Ticket Readers
FeliCa and ISO 14443 B support in the PN5120A0HN1-C2151 makes it well-suited to public transit ticket validators where Asian transit cards (Suica, Octopus, T-money) must coexist with international contactless bank cards. The IC's modulation/demodulation chain handles the higher data rates required for rapid gate throughput, and its integrated data-mode detector simplifies multi-protocol firmware. Transit designs typically use a high-Q PCB loop antenna and require the IC's PVDD pin to be driven at 5 V (via internal charge pump or external boost) for maximum read range. Power dissipation is moderate due to continuous carrier generation, so thermal via layout under the HVQFN-32 EP is critical for outdoor installations.
推荐
IoT Provisioning and Commissioning
The PN5120A0HN1-C2151 provides tap-to-pair NFC commissioning for Wi-Fi and Bluetooth IoT devices, allowing a smartphone to securely transfer credentials by simply tapping the unpowered device. Its NFCIP-1 target mode and NDEF record support enable connection handover to higher-throughput wireless radios without requiring the IoT device to have its own user interface. Power-sensitive designs benefit from the IC's hard-power-down and soft-power-down modes, which drop standby current to microampere levels. The 5x5 mm HVQFN-32 footprint is small enough for sensor nodes, smart locks, and appliance modules, while the integrated FIFO reduces host MCU RAM requirements during credential transfer.
推荐
Industrial RFID Reader Modules
Industrial RFID readers benefit from the PN5120A0HN1-C2151's industrial temperature range (-30 C to +85 C) and robust RF frontend capable of driving antennas up to several watts effective radiated power with external amplification. The IC supports ISO 15693 for long-range vicinity tag reading (used in supply chain, asset tracking, and library systems) alongside ISO 14443 short-range identification. Its SPI host interface allows integration with industrial PLCs and ARM-based embedded controllers. The HVQFN-32 exposed pad provides mechanical robustness and thermal dissipation when mounted on industrial-grade FR-4 PCBs. Designers typically pair it with TVS protection on antenna lines for ESD/surge immunity in factory environments.
推荐
推荐产品汇总
工程参考数据： PN5120A0HN1-C2151 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PN5120A0HN1/C1,151 | PN5120A0HN1/C2,118 | CLRC66301HN | SLRC61002HN | MFRC52202HN1 |
|---|---|---|---|---|---|---|
| Package | HVQFN-32 (5x5 mm) | HVQFN-32 (5x5 mm) - same | HVQFN-32 (5x5 mm) - same | HVQFN-32 (5x5 mm) - same | HVQFN-32 (5x5 mm) - same | HVQFN-32 (5x5 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Operating Frequency | 13.56 MHz | 13.56 MHz | 13.56 MHz | 13.56 MHz | 13.56 MHz | 13.56 MHz |
| Supply Voltage | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 2.5 V to 3.6 V |
| Max ISO 14443 Bit Rate | 424 kbps | 424 kbps | 424 kbps | 848 kbps | 848 kbps | 424 kbps |
| FeliCa Support | Yes | Yes | Yes | Yes | Yes | No |
| NFCIP-1 Peer-to-Peer | Yes | Yes | Yes | Yes | Yes | No |
| Host Interface | I2C, SPI, UART | I2C, SPI, UART | I2C, SPI, UART | I2C, SPI, UART | I2C, SPI, UART | SPI, I2C, UART |
| Operating Temperature | -30 C to +85 C | -30 C to +85 C | -30 C to +85 C | -40 C to +105 C | -40 C to +105 C | -25 C to +85 C |
关键差异点
- Multi-protocol support including FeliCa and NFCIP-1 （对比 MFRC52202HN1)
- Mature PN512 firmware ecosystem （对比 CLRC66301HN)
- Integrated FIFO and DMA-style host offload （对比 MF RC522 legacy designs)
设计说明
Place the antenna matching network components within 5 mm of the TX1, TX2, and RX pins to minimize parasitic inductance that would detune the 13.56 MHz resonant circuit. Use a ground plane keep-out under the loop antenna traces and place a continuous ground ring around the antenna with via stitching every 5 mm to confine the 13.56 MHz field. The HVQFN-32 exposed pad must be soldered to a ground copper pour with a 4x4 thermal via array (0.3 mm via diameter, 0.5 mm pitch) to provide both thermal dissipation and a low-impedance ground reference for the TX drivers.
Provide low-noise LDO regulation for AVDD and DVDD, with bulk 10 uF ceramic capacitors within 1 cm of the supply pins and 100 nF decoupling caps within 2 mm. The PVDD pin may require 5 V (or higher) to drive the antenna at maximum output power - use a separate charge pump or boost regulator rather than feeding PVDD directly from AVDD, as noise on PVDD directly couples into the TX modulation envelope. Power dissipation during continuous carrier generation can reach 200-300 mW, so ensure adequate thermal management of the HVQFN-32 EP.
Do not leave the RSTPD pin floating - it must be pulled high for normal operation or driven by the host MCU for controlled reset sequencing. The TEST pin must be tied to ground for production designs; floating TEST pins can cause unpredictable behavior in some builds. Do not connect the crystal oscillator traces near noisy digital lines; route OSCIN/OSCOUT over a continuous ground plane and place the 27.12 MHz crystal within 3 mm of the IC. Finally, add bidirectional TVS diodes (e.g. PESD5V0S1BA) on the TX1, TX2, and RX lines for ESD protection per IEC 61000-4-2.
合规信息
RoHS and REACH compliant per NXP product page. Industrial temperature grade (-30 C to +85 C). Not AEC-Q100 qualified - select AEC-Q100 qualified NFC IC for automotive applications.
