PR5331C3HN-C370E - 13.56MHz USB NFC Reader IC | NXP | 40-HVQFN
MPN: PR5331C3HN-C370E ✓ فعالPR5331C3HN-C370E نمای کلی
An NFC/RFID reader IC is a type of contactless transceiver that powers a nearby passive tag via an electromagnetic field at 13.56 MHz, modulates the field to exchange data, and decodes the tag response into a host-usable digital stream. In the broader hierarchy, NFC reader ICs sit under RFID transceivers -> RF ICs -> RF & Wireless semiconductors. NXP's CLRC663, PN5180, and PR5331 family dominate the 13.56 MHz infrastructure-reader segment where ISO 14443 / NFC Forum compliance, reader IC sensitivity, and host connectivity (USB / SPI / I2C / HSU) determine application fit.
Key features of the PR5331C3HN-C370E include 13.56 MHz RF operation with a single external antenna, integrated firmware that eliminates external MCU protocol-stack development, USB 2.0 full-speed device interface for plug-and-play host connectivity, HSU (high-speed UART) link as a backup host interface, support for FeliCa / MIFARE Classic / MIFARE DESFire / ISO 14443 / NFC Forum tag types, and embedded contactless protocol handling by an integrated microcontroller. The 40-pin HVQFN EP package with exposed thermal pad enables compact USB-stick form factors and reader modules.
The device architecture combines an RF front-end (transmitter, receiver, AGC, and framing logic), a digital protocol engine, an embedded 80C51-class microcontroller with dedicated ROM, and dual host interfaces (USB and HSU). The integrated firmware offloads command-set processing from the host CPU, so the host only exchanges reader-level APDUs over USB or HSU. Power is supplied from the USB VBUS rail at 5 V (regulated internally to 3.3 V) or from an external 2.5–3.6 V supply, with the IC drawing roughly 100–180 mA in active RF transmission depending on antenna matching.
Typical applications include USB NFC readers for desktops and POS terminals, contactless smart-card readers for access control and ticketing, NFC peer-to-peer initiator devices, development kits for NFC tag testing, and embedded modules for vending machines, kiosks, and industrial handheld terminals. Its broad protocol coverage makes it well-suited for systems that must read mixed tag populations in retail, transport, and identity ecosystems.
When designing with the PR5331C3HN-C370E, pay close attention to antenna matching network design - even a few nH of stray inductance at the TX1/TX2 pins will detune the matching circuit and reduce read range. Use NXP's NFC Cockpit configuration tool to load customer-specific firmware parameters, and ensure the HVQFN EP is soldered to a sufficiently large copper pour for thermal dissipation during continuous RF emission.
This page consolidates verified distributor pricing, same-package drop-in alternatives, and engineering design notes that complement the manufacturer datasheet and shorten the bring-up time for new USB NFC reader designs.
جایگزین‌های drop-in برای PR5331C3HN-C370E — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
PR5331C3HN/C350,51
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PR5331C3HN/C370,51
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PR5331C3HN/C370
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PR5331C3HN-C370E مشخصات
| عملکرد | NFC/RFID Reader IC |
| RF Frequency | 13.56 MHz |
| ولتاژ تغذیه | 2.5 V to 3.6 V |
| Host Interface | USB 2.0 Full-Speed, HSU (High-Speed UART) |
| Supported Protocols | FeliCa, ISO 14443 A/B, ISO 18092 (NFCIP-1), MIFARE Classic, MIFARE DESFire, NFC Forum Tag Types |
| بسته‌بندی | 40-pin HVQFN Exposed Pad (SOT1449-1) |
| Package Dimensions | 6 mm x 6 mm x 0.85 mm |
| نوع نصب | Surface Mount |
| دمای کاری | -25C to +85C |
| وضعیت RoHS | Compliant |
| Lead-Free | Yes |
| Antenna Outputs | TX1, TX2 (differential) |
| Firmware | Integrated ROM, C370E variant |
| AEC-Q100 | Not qualified (consumer/industrial use) |
پیکربندی پین PR5331C3HN-C370E
| پین 1 | TX1 — Antenna TX output 1 (differential) |
| پین 2 | TX2 — Antenna TX output 2 (differential) |
| پین 3 | RFI_OUT — Receiver output / demodulator input |
| پین 4 | VDD_RFHS — RF high-side supply |
| پین 5 | VDD — Digital/host supply |
| پین 6 | VSS — Ground |
| پین 7 | VBUS — USB VBUS detect input |
| پین 8 | DP — USB D+ data line |
| پین 9 | DM — USB D- data line |
| پین 10 | HSU_TX — High-speed UART transmit |
| پین 11 | HSU_RX — High-speed UART receive |
| پین 12 | GPIO0 — General-purpose IO / host interrupt |
| پین 13 | GPIO1 — General-purpose IO |
| پین 14 | GPIO2 — General-purpose IO |
| پین 15 | GPIO3 — General-purpose IO |
| پین 16 | AUX1 — Auxiliary analog input |
| پین 17 | AUX2 — Auxiliary analog input |
| پین 18 | OSC_IN — Crystal oscillator input |
| پین 19 | OSC_OUT — Crystal oscillator output |
| پین 20 | RESET_N — Active-low reset |
| پین 21 | TEST — Test mode (factory) |
| پین 22 | NC — Not connected |
| پین 23 | NC — Not connected |
| پین 24 | NC — Not connected |
| پین 25 | VSS — Ground |
| پین 26 | VDD_IO — IO supply |
| پین 27 | GPIO4 — General-purpose IO |
| پین 28 | GPIO5 — General-purpose IO |
| پین 29 | GPIO6 — General-purpose IO |
| پین 30 | GPIO7 — General-purpose IO |
| پین 31 | AUX3 — Auxiliary analog input |
| پین 32 | AUX4 — Auxiliary analog input |
| پین 33 | RX0 — Receiver input |
| پین 34 | RX1 — Receiver input |
| پین 35 | VDD_RX — Receiver supply |
| پین 36 | VSS — Ground |
| پین 37 | VDD_ANT — Antenna supply |
| پین 38 | TVDD — Transmitter supply |
| پین 39 | NC — Not connected |
| پین 40 | NC — Not connected |
| پین 41 | EP — Exposed pad (thermal/ground) |
کاربردهای معمول
PR5331C3HN-C370E مناسب است برای 6 کاربردs: USB NFC Reader for Desktop POS, Access Control Reader, Public Transport Ticket Validator, NFC Peer-to-Peer Initiator, NFC Tag Programming/Testing Station, Industrial Handheld Terminal.
USB NFC Reader for Desktop POS
Provides tap-to-pay and contactless card reading via a USB-tethered reader module. The PR5331C3HN-C370E's USB 2.0 Full-Speed device interface plus integrated ROM firmware for ISO 14443 and MIFARE DESFire makes it ideal for retail POS terminals where the host POS computer supplies power and command exchange. With a properly matched 13.56 MHz antenna, read range is 3-5 cm, sufficient for tap-to-pay user experience; no external MCU or firmware port is needed, reducing BOM.
پیشنهادی
Access Control Reader
Reads employee badges and contactless credentials in door-entry and elevator access systems. The PR5331C3HN-C370E's broad protocol coverage (FeliCa, ISO 14443 A/B, NFC Forum) supports mixed badge populations, while the embedded firmware offloads cryptographic handling from the door controller. The 40-pin HVQFN EP package fits inside compact mullion-mount readers, and the -25C to +85C operating range covers outdoor-iced (Korea) entries and indoor deployments alike.
پیشنهادی
Public Transport Ticket Validator
Reads contactless transit cards and mobile NFC wallets at station gates and onboard validators. The PR5331C3HN-C370E's support for FeliCa (used by Japanese/Asian transit cards) and ISO 14443 (used by Western contactless cards) allows a single reader to handle multi-region travelers. The HSU host interface suits legacy validator mainboards, and the integrated ROM firmware shortens EMVCo / transit certification cycles by eliminating custom protocol-stack work.
پیشنهادی
NFC Peer-to-Peer Initiator
Enables NFCIP-1 peer-to-peer communication between the reader and a mobile phone or another peer device. The PR5331C3HN-C370E supports ISO 18092 (NFCIP-1) initiator mode through its integrated firmware, allowing bidirectional data exchange for Bluetooth handover, Wi-Fi configuration, and NDEF push scenarios. The USB interface simplifies connection to a host running the peer-to-peer application logic, eliminating the need for an external NFC controller on the host side.
پیشنهادی
NFC Tag Programming/Testing Station
Used in production-line test fixtures and developer kits to program and verify NFC Forum tags. The PR5331C3HN-C370E's complete NFC Forum tag-type coverage (Type 1/2/3/4) plus ISO 14443A/B and FeliCa support allows one station to handle every tag variant under test. The USB plug-and-play interface lets the station connect directly to a laptop running NXP's NFC Cockpit or customer test software, with the IC drawing 100-180 mV across the antenna matching network during read/write cycles.
پیشنهادی
Industrial Handheld Terminal
Reads asset tags and inventory labels on warehouse and field-service handhelds. The PR5331C3HN-C370E's industrial temperature range (-25C to +85C) covers warehouse-iced (Korea) and outdoor deployments, while the integrated ROM firmware offloads protocol processing from the handheld's main CPU, preserving battery life. The 40-pin HVQFN EP package fits inside ruggedized handheld enclosures, and the HSU host interface can connect to the handheld's main MCU via a single UART line, freeing USB for charging/diagnostics.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PR5331C3HN-C370E — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PR5331C3HN/C350,51 | PR5331C3HN/C370,51 | PR5331C3HN/C370 |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 40-pin HVQFN Exposed Pad (SOT1449-1) | 40-pin HVQFN Exposed Pad - same | 40-pin HVQFN Exposed Pad - same | 40-pin HVQFN Exposed Pad - same |
| RF Frequency | 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 | 2.5 V to 3.6 V |
| Host Interface | USB 2.0 Full-Speed + HSU | USB 2.0 Full-Speed + HSU | USB 2.0 Full-Speed + HSU | USB 2.0 Full-Speed + HSU |
| Supported Protocols | FeliCa, ISO 14443, ISO 18092, MIFARE, NFC Forum | FeliCa, ISO 14443, ISO 18092, MIFARE, NFC Forum | FeliCa, ISO 14443, ISO 18092, MIFARE, NFC Forum | FeliCa, ISO 14443, ISO 18092, MIFARE, NFC Forum |
| Firmware Variant | C370E | C350,51 | C370,51 | C370 |
| Operating Temperature | -25C to +85C | -25C to +85C | -25C to +85C | -25C to +85C |
تفاوت‌های کلیدی
- Embedded ROM firmware eliminates external protocol stack (در مقابلST25R95 (STMicroelectronics))
- USB 2.0 Full-Speed plug-and-play host interface (در مقابلCLRC66303HNY (NXP))
- Broadest protocol coverage in the PR5331 family (در مقابلPR5331C3HN/C350,51)
یادداشت‌های طراحی
Estimated: Antenna matching network is the single largest determinant of read range for the PR5331C3HN-C370E. Use NXP's NFC Cockpit antenna matching calculator to size the L/C matching components at the TX1/TX2 pins; even 5 nH of parasitic inductance will detune the resonant frequency and reduce read range from a typical 5 cm to 2 cm. Route the TX1/TX2 differential pair over a continuous ground plane and keep trace lengths matched within 1 mm.
The 40-pin HVQFN Exposed Pad package dissipates up to approximately 1 W during continuous RF emission. Solder the EP to a continuous ground pour of at least 25 mm^2 of copper on top and bottom layers, stitched with thermal vias (0.3 mm pitch, 0.2 mm finished hole). An unsoldered EP will cause junction temperature to rise 30-40C above ambient and may trigger thermal shutdown during sustained read cycles.
USB bus-powered designs must hold the VBUS detect pin at a valid logic level (above 1.4 V) within 100 ms of insertion. Failure to do so results in the PR5331C3HN-C370E not enumerating on the USB host. Add a 4.7 uF bulk capacitor on VBUS and a 10 kohm pull-down on the DP/DM lines per the USB 2.0 specification. Also, configure the host-side USB descriptor to enumerate as a vendor-specific class to avoid OS driver confusion.
اطلاعات انطباق
RoHS and lead-free compliant per NXP product page and DigiKey environmental attribute data. Consumer/industrial temperature grade; not AEC-Q100 qualified - do not use in automotive applications. For specific REACH and conflict-minerals declarations, request the latest material declaration through NXP's product-compliance portal.
