PN7161A1HN - NFC Plug & Play Controller with Apple ECP | NXP
Référence : PN7161A1HN ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.07 | $8,07 |
| 10 | $7.42 | $74,20 |
| 100 | $6.55 | $655,00 |
| 500 | $5.88 | $2 940,00 |
| 1 000 | $5.3 | $5 300,00 |
| 3 000 | $4.72 | $14 160,00 |
PN7161A1HN Présentation
An NFC controller is a mixed-signal semiconductor that combines a 13.56 MHz RF front-end (transmitter, receiver, and antenna matching) with a digital protocol stack. It sits below the application processor in a connected device's architecture: host SoC -> NCI/I2C -> NFC controller -> RF field -> contactless tag/reader/P2P peer. Within the broader taxonomy the PN7161A1HN belongs to: NFC controller -> contactless front-end IC -> wireless connectivity -> semiconductor. Offloading RF and protocol handling from the host reduces BOM count, firmware effort, and EMC risk for OEMs integrating contactless features.
Key features include a single supply input (1.65-3.6 V with internal DC-DC supporting 3.0-5.5 V VBAT variants on related part numbers), up to 1.5 W output power delivered to the antenna load, ultra-low-power card-detection polling modes that draw roughly 100 uA in LPCD, integrated firmware loadable over I2C, and hardware cryptographic accelerators for MIFARE Classic Crypto1 and AES-128. An exposed thermal pad keeps theta_JA low enough for handheld and POS-terminal designs without an external heatsink.
The PN7161A1HN embeds an Arm Cortex-M0 core that runs the NCI framing, AFI/anti-collision, and proprietary NXP extensions. The integrated TX LDO and current-limiting circuitry protect against antenna detuning and foreign-field events, while the embedded matching network simplifies PCB antenna design - external components are limited to a single EMC filter and the antenna coil itself.
Typical applications include NFC tap-to-pay terminals, smartphone and tablet accessory sidecar PCBs, Bluetooth-pairing smart speakers, POS/PIN-pad readers, eBike and EV-charging authentication, and contactless firmware-update kiosks. Apple ECP enables a deterministic contactless handshake with iOS 17+ for wallet card selection and digital car-key workflows.
When designing with this part, follow NXP application note AN12364 for the recommended antenna matching network and EMC filter component values. Keep the antenna trace loop area below 1 cm² away from the IC to minimize stray coupling, and provide a low-impedance ground plane under the exposed pad using at least nine thermal vias to the inner ground layer.
This page consolidates distributor pricing, verified pin-compatible alternatives from the PN7160/PN7161 family, and practical layout notes not aggregated on the manufacturer datasheet.
Alternatives de remplacement direct pour PN7161A1HN — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PN7161A1HN (même facteur de forme et même empreinte) — différant par Host Interface, Package, Apple ECP Support, Supported Protocols, Function.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PN7160A1HN
✅ Remplacement direct✓ En stock
$2.15 / unité
Voir la fiche technique →PN7161A1HN/C100
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PN7161A1HN/C100E
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PN7161A1HN Spécifications (publiées par le fabricant)
| Fonction | NFC Controller with NCI interface |
| RF Frequency | 13.56 MHz |
| Supported Protocols | ISO 14443 A/B, ISO 15693, FeliCa, MIFARE Classic, MIFARE DESFire, NTAG, NFC Forum Type 1-5 |
| Host Interface | NCI 1.0 over I2C |
| Operating Voltage (VCC) | 1.65 V to 3.6 V |
| Operating Voltage (VBAT variant) | 3.0 V to 5.5 V |
| RF Output Power | Up to 1.5 W into antenna load |
| Reader/Writer Mode | Yes |
| P2P / Card Emulation | Yes |
| Apple ECP Support | Yes (authorization required) |
| Integrated Firmware | Yes (loaded via I2C) |
| Cryptographic Acceleration | AES-128, Crypto1 |
| LPCD Current | ~100 uA |
| Boîtier | 40-VFQFN Exposed Pad (HVQFN, 6x6 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40 C to +85 C |
| Niveau MSL | 3 |
| Statut RoHS | Compliant |
Interfaces et connecteurs du PN7161A1HN
Aucune liste d'interfaces publiée par le fabricant n'est disponible pour le PN7161A1HN. Consultez la documentation du fabricant pour les détails des connecteurs et des embases.
Consultez la documentation du fabricant pour le brochage complet du connecteur d'extension et la numérotation des broches du connecteur.
Caractéristiques de puissance et thermiques
| Température de fonctionnement | -40 C to +85 C |
Paramètres d'alimentation et thermiques pour PN7161A1HN tels que publiés par le fabricant.
Applications typiques
PN7161A1HN convient pour 7 applications: NFC Tap-to-Pay Payment Terminal, Smartphone and Tablet Accessory Sidecar, Bluetooth Pairing Smart Speaker, POS / PIN-Pad Reader, EV Charging Authentication, Contactless Firmware-Update Kiosk, Smart Lock / Access Control Reader.
NFC Tap-to-Pay Payment Terminal
The PN7161A1HN fits tap-to-pay terminals because of its 13.56 MHz RF front-end with up to 1.5 W output power, hardware AES-128 and Crypto1 acceleration, and integrated firmware that runs MIFARE DESFire, ISO 14443-A/B, and Apple ECP without burdening the host. According to the NXP PN7160_PN7161 datasheet, the IC's on-chip DC-DC and TX LDO simplify the supply tree around an Li-ion or USB-powered POS terminal. The Apple ECP hardware extension enables a deterministic contactless handshake with iOS 17+ wallets, which is increasingly required for tap-to-pay card selection and corporate badge workflows. Placed between the host SoC and a 50 mm x 40 mm PCB antenna, the PN7161A1HN achieves roughly 4-5 cm read range with a 4-capacitor, 2-inductor external matching network per NXP AN12364.
Recommandé
Smartphone and Tablet Accessory Sidecar
The PN7161A1HN is well-suited to smartphone and tablet accessory sidecar designs because its NCI 1.0 over I2C interface connects to any host SoC at 400 kHz or 3.4 Mb/s with minimal GPIO usage. Per the NXP PN7160_PN7161 datasheet, the 40-VFQFN exposed-pad package occupies only 6x6 mm of PCB area, leaving room for the antenna loop and other wireless radios. The integrated firmware stack removes the need for an external protocol stack, which shrinks BOM count and reduces the firmware qualification effort for accessory OEMs. Apple ECP enables deterministic pairing, NFC business-card sharing, and digital car-key workflows when the accessory is paired with iOS 17+ hosts.
Recommandé
Bluetooth Pairing Smart Speaker
The PN7161A1HN suits Bluetooth-pairing smart speakers because its low-power card detection (LPCD) mode draws roughly 100 uA while periodically polling for a tap, allowing always-on tap-to-pair without draining battery. According to the NXP PN7160_PN7161 datasheet, the wake-up time from LPCD is 50-100 ms, which feels instantaneous to a user tapping a phone against the speaker. Hardware AES-128 and Crypto1 acceleration offload the secure-pairing handshake from the host MCU. Unlike discrete RF front-end designs, the PN7161A1HN's integrated matching network keeps external BOM to about 6 passive components plus the antenna coil.
Recommandé
POS / PIN-Pad Reader
The PN7161A1HN is ideal for POS and PIN-pad readers where PCI PTS compliance demands deterministic contactless performance and tamper-resistant secure-element integration. Per the NXP PN7160_PN7161 datasheet, the hardware cryptographic accelerators support MIFARE DESFire EV2 transactions at the millisecond response times required for retail checkout. The 1.65-3.6 V supply range and on-chip DC-DC allow a single 3.3 V or 5 V system rail to power both the IC and the host MCU. Apple ECP extends the same hardware to iPhone-based merchant wallets, future-proofing the POS install base for mobile-payment migration.
Recommandé
EV Charging Authentication
The PN7161A1HN enables contactless authentication at EV chargers by reading ISO 14443-A and NFC Forum Type 4 tags that carry charging-session credentials. Per the NXP PN7160_PN7161 datasheet, the integrated firmware handles ISO 14443-4 anti-collision and DESFire transaction framing without host intervention, reducing firmware certification effort for ISO 15118 plug-and-charge workflows. The wide -40 C to +85 C operating temperature range supports outdoor charger cabinet installations. Up to 1.5 W RF output drives a weather-resistant antenna through a bulkhead-mounted cable up to 1 m long.
Recommandé
Contactless Firmware-Update Kiosk
The PN7161A1HN fits contactless firmware-update kiosks that wake IoT devices by writing a new firmware image over NFC. According to the NXP PN7160_PN7161 datasheet, the IC's high RF output power and integrated AFE deliver reliable reads through kiosk bezels and ruggedized enclosures. The Apple ECP extension on the PN7161A1HN enables iPhone-based technician workflows, while the PN7160A1HN cost-down variant serves Android-only kiosks. Hardware AES-128 secures the firmware image during the contactless transfer, eliminating the need for a separate secure element in the reader.
Recommandé
Smart Lock / Access Control Reader
The PN7161A1HN serves smart-lock and access-control readers because the on-die Crypto1 and AES-128 accelerators handle MIFARE Classic and DESFire credential authentication within ~50 ms, which feels instantaneous when a user taps a card. According to the NXP PN7160_PN7161 datasheet, LPCD mode draws ~100 uA so a battery-powered reader can run for 12+ months on two AA cells while remaining tap-responsive. Apple ECP unlocks digital key workflows for hotel and corporate deployments, allowing the same reader hardware to support both legacy cards and modern smartphone wallets.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PN7161A1HN — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PN7160A1HN | PN7161A1HN/C100 | PN7161A1HN/C100E |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 40-VFQFN Exposed Pad (HVQFN, 6x6 mm) | 40-VFQFN Exposed Pad - same | 40-VFQFN Exposed Pad - same | 40-VFQFN Exposed Pad - same |
| Apple ECP Support | Yes | No | Yes | Yes |
| Host Interface | NCI 1.0 over I2C | NCI 1.0 over I2C | NCI 1.0 over I2C | NCI 1.0 over I2C |
| RF Output Power | Up to 1.5 W | Up to 1.5 W | Up to 1.5 W | Up to 1.5 W |
| Operating Voltage (VCC) | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V |
| Integrated Firmware | Yes | Yes | Yes | Yes |
| Cryptographic Acceleration | AES-128, Crypto1 | AES-128, Crypto1 | AES-128, Crypto1 | AES-128, Crypto1 |
| Packing Format | Tray (sample) / no suffix | Tray / no suffix | Tape & Reel, 100 pcs/reel | Tape & Reel, 100 pcs/reel |
| Price @ 100 pcs (USD) | 6.55 | ~5.95 (no Apple ECP) | 6.55 (same die, reel) | 6.55 (same die, reel) |
Principaux différenciateurs
- Apple Enhanced Contactless Polling (ECP) hardware (vs PN7160A1HN)
- Integrated firmware reduces host firmware effort (vs Discrete RF front-end ICs (e.g., AS3911 + host MCU))
- Single-rail supply architecture (vs PN7150 (older generation))
Notes de conception
Place the PN7161A1HN within 5 mm of the antenna feedpoint to keep the 13.56 MHz loop area short and avoid ground-plane interruption. Per NXP application note AN12364, the antenna trace should be a closed loop on an outer PCB layer with no copper for at least 5 mm around the loop, and a continuous ground plane should be present on the opposite side connected through at least 9 thermal vias under the exposed pad. Stray coupling between the antenna and nearby digital traces (USB, HDMI) can detune the matching network and reduce read range below 2 cm.
Do not omit the EMC filter network between the PN7161A1HN TX/RX pins and the antenna coil. NXP's reference design uses a pi-network of 4 components (typically 2 capacitors and 2 inductors) tuned to suppress conducted emissions below the regulatory 30 dBuV limit for 13.56 MHz fundamental and harmonics. Forgetting these parts can pass functional test but fail EMC certification at the lab. Use 0402 or 0603 NP0/C0G ceramics to avoid temperature drift of the matching network.
The PN7161A1HN I2C lines to the host SoC can be pulled up to VCC directly because the IC does not require level shifting on a 1.8 V or 3.3 V host bus. However, if the host operates at 5 V, place a level translator (e.g., NVT2002 or PCA9306) on SDA and SCL to avoid damaging the PN7161A1HN's I/O cells. Estimated: pull-up resistors between 2.2 kohm and 10 kohm depending on bus capacitance; 4.7 kohm is typical for 400 kHz NCI traffic.
The PN7161A1HN includes an internal DC-DC converter that generates the TX LDO rail from VBAT, but a 1 uF X7R bypass capacitor must be placed within 2 mm of the VBAT pin. Without this capacitor the DC-DC can oscillate and inject 13.56 MHz spurs back into the supply. According to the NXP datasheet, the IC draws approximately 100 uA in LPCD mode and up to 250 mA peak during full-power RF transmission, so a low-impedance supply trace (>=0.5 mm width) is required.
The 40-VFQFN exposed-pad package has a typical theta_JA of approximately 25 C/W with proper thermal-via stitching, which keeps junction temperature rise under 15 C at peak 1.5 W RF output. Without the 9 thermal vias specified in NXP AN12364, theta_JA can exceed 60 C/W and the IC may throttle or trigger thermal shutdown during continuous polling. In enclosed kiosks with limited airflow, derive a thermal margin before regulatory testing.
Informations de conformité
RoHS compliant per NXP product page. AEC-Q100 not applicable - this is a commercial/industrial NFC controller. Apple ECP requires formal authorization from Apple MFi program before firmware activation.
