My Inquiry
My Account
NXP Semiconductors PN7161A1HN/C100Y
- Part No.:
- PN7161A1HN/C100Y
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PN7161A1HN/C100Y.pdf
- Description:
- IC NFC CONTROLLER I2C HVQFN40
- Quantity:
- Payment:
- Shipping:
Inventory:3,995
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PN7161A1HN/C100Y from NXP Semiconductors is a Near Field Communication (NFC) controller IC with integrated NCI 2.0 interface, firmware version 12.50.05, and support for Enhanced Contactless Polling (ECP) under Apple authorization. It operates across 2.8–5.5 V battery supply, delivers 1.3 W transmitter output power, and achieves 20 mV(p-p) card-mode receiver sensitivity. It enables autonomous NFC functionality in mobile and portable devices even when host is powered down.
For engineers reviewing the PN7161A1HN/C100Y datasheet, PN7161A1HN/C100Y pinout, PN7161A1HN/C100Y application, or PN7161A1HN/C100Y equivalent, key selection criteria include ECP capability (PN7161-specific), HVQFN40 package compatibility, I²C host interface, low-power polling loop current (≤100 µA), and ISO/IEC 14443A/B/F, ISO/IEC 15693, MIFARE, and FeliCa protocol support.
Technical Context
The PN7161A1HN/C100Y implements an ARM Cortex-M0 core with 128 kB ROM, 28 kB EEPROM, and 8 kB SRAM, executing NXP's proprietary firmware to manage NFC stack operations via NCI 2.0. Its RF front-end supports simultaneous reader, card emulation, and P2P modes up to 424 kbps, with dynamic power control and enhanced DLMA for optimized load modulation amplitude.
It integrates a dual-supply transmitter (VDD(TX) = 2.7–5.25 V), independent LMA phase adjustment (5° steps for Type A/B/F), and autonomous wake-up via RF field, internal timer, or host interfaces. The device uses an internal 27.12 MHz oscillator with external crystal support and includes integrated RF level detection and polling loop acceleration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery Supply Voltage | 2.8 V to 5.5 V - enables direct connection to wide-range Li-ion/Li-poly batteries without external regulators |
| Transmitter Output Power | 1.3 W - supports high-field-strength operation for extended read range and small-antenna designs |
| Card Mode Sensitivity | 20 mV(p-p) - ensures reliable detection of weakly coupled or low-power tags in card emulation mode |
| Low-Power Polling Current | ≤100 µA at 500 ms loop time - sustains multi-hour standby with periodic RF discovery while host is off |
| Firmware Version | 12.50.05 - initial production firmware enabling ECP (Apple-authorized), T4T NDEF write, and EMVCo profile support |
| Host Interface | I²C-bus High-Speed mode - provides deterministic, low-pin-count communication with application processors |
| RF Protocols | ISO/IEC 14443A/B, ISO/IEC 15693, MIFARE 1K/4K/DESFire, FeliCa, NFC Forum Tags T1T–T5T - full interoperability with global contactless infrastructure |
Pinout & Package
HVQFN40 package (SOT618-1), 6 × 6 mm, 0.5 mm pitch, thermally enhanced with exposed center pad (VSS). Compatible with standard reflow profiles and space-constrained mobile PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I2C_ADR0/SPI_NSS | Host interface select | Configures I²C address or SPI slave select; fixed for I²C-only variant PN7161A1HN/C100Y |
| IRQ | Interrupt request output | Active-low signal alerts host of RF events, command completions, or wake-up triggers |
| VEN | Hard Power Down enable | Low-level assertion forces HPD state; retains AutoMode bit across reset |
| ANT1 / ANT2 | Antenna connection | Differential antenna interface supporting wake-up detection and bidirectional RF coupling |
| VDD(TX) | Transmitter supply input | Independent 2.7–5.25 V rail powers RF output stage for maximum field strength and efficiency |
| RXP / RXN | Differential receiver inputs | High-sensitivity analog front-end inputs for demodulating ISO/IEC 14443 and 15693 signals |
| NFC_CLK_XTAL1 | Crystal oscillator input | Accepts 27.12 MHz fundamental-mode crystal; internal PLL generates precise system clocks |
| WKUP_REQ | Wake-up request input | Allows external event (e.g., button press) to exit Standby and resume Active state |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced Contactless Polling (ECP) | Apple-authorized feature enabling faster, more robust tag discovery in iOS environments; exclusive to PN7161 family |
| Autonomous Card Emulation | Operates in Standby or Low-power mode without host CPU involvement-supports NFC payment tokens during device sleep |
| Integrated Power Management Unit | Supports Hard Power Down (≤16 µA), Standby (32–52 µA), and polling loop (≤100 µA); eliminates need for external PMIC |
| Dynamic Load Modulation Amplitude (DLMA) | Real-time LMA optimization based on external field strength-extends communication distance in card mode by up to 30% |
| NCI 2.0 Compliance | Fully compliant with NFC Forum NCI specification v2.0-ensures seamless integration with Android and Linux NFC stacks |
| Anti-Tearing EEPROM | Hardware-supported recovery from power loss during NDEF write-guarantees data integrity in secure element applications |
Applications
| Mobile Payment Terminals | Wearable Health Monitors |
|---|---|
Use Scenario: Compact, battery-powered point-of-sale terminals requiring contactless payment acceptance and secure credential storage. IC Role / Device Role / Timing Role: NFC controller handling EMVCo-compliant card emulation, secure channel establishment, and host-triggered transaction initiation. Use Value: Enables tap-to-pay functionality with <100 µA polling current, extending battery life beyond 7 days between charges while maintaining PCI-PTS compliance. |
Use Scenario: Fitness trackers and medical wearables needing passive NFC pairing, firmware updates, and patient ID verification. IC Role / Device Role / Timing Role: Autonomous NFC interface managing ISO/IEC 15693 tag reads and T4T NDEF writes without waking main MCU. Use Value: Reduces average system power by 42% versus always-on host-controlled NFC, enabling 14-day battery runtime with daily sync. |
| Smart Home Gateways | Industrial Asset Tags |
Use Scenario: Hub devices provisioning IoT sensors, configuring Zigbee/Thread networks, and validating accessory authenticity. IC Role / Device Role / Timing Role: Reader/writer performing ISO/IEC 14443B PICC discovery, MIFARE DESFire authentication, and NFC Forum T4T configuration. Use Value: Supports concurrent multi-protocol polling (A/B/F) with <500 ms total cycle time-enabling sub-second setup of new devices. |
Use Scenario: Ruggedized maintenance tags on factory equipment storing calibration history, service logs, and firmware versions. IC Role / Device Role / Timing Role: Passive target emulating NFC Forum T5T with custom NDEF records; powered solely by reader field. Use Value: Achieves >4 cm read range using compact 25 mm² antenna due to 1.3 W transmitter and 20 mV(p-p) sensitivity-reducing manual scanning effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN7160A1HN/C100Y | No ECP support; identical pinout, firmware 12.50.05, same HVQFN40 package and I²C interface | Lacks Apple-authorized ECP; suitable for non-iOS ecosystems or cost-sensitive designs where ECP is unused | Select when ECP is not required and BOM cost reduction is prioritized over future iOS compatibility |
| ST25DV04KC | Dynamic NFC tag IC (not controller); no host interface, no CPU, EEPROM-based only; supports I²C + RF | Acts as passive NFC endpoint only-cannot initiate reader mode or run complex stacks like NCI | Choose only for simple data exchange scenarios (e.g., sensor ID, static config); not a functional replacement for PN7161A1HN/C100Y |
Compared with PN7160A1HN/C100Y, PN7161A1HN/C100Y adds ECP capability without layout or power changes; compared with ST25DV04KC, it provides full controller functionality including active polling, multi-protocol support, and autonomous operation-making it essential for host-managed NFC systems.
Availability
PN7161A1HN/C100Y is available at Aetrix Electronics and suitable for mobile payment terminals, wearable health monitors, and smart home gateways requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for PN7161A1HN/C100Y 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 mobile markets, with over 20 years of NFC innovation and industry-standardization leadership.
The PN7161 belongs to NXP's PN716x NFC controller family, designed specifically for space-constrained, battery-operated devices requiring certified, low-power, multi-protocol NFC functionality with autonomous operation and Apple ECP readiness.
FAQ
What distinguishes PN7161A1HN/C100Y from PN7160A1HN/C100Y?
The PN7161A1HN/C100Y includes Enhanced Contactless Polling (ECP) support authorized by Apple, while PN7160A1HN/C100Y does not. Both share identical HVQFN40 packaging, I²C interface, firmware version 12.50.05, and electrical specifications. ECP improves tag discovery speed and reliability in iOS environments but requires formal Apple authorization to activate. PN7161A1HN/C100Y maintains full pin and software compatibility with PN7160A1HN/C100Y.
Does PN7161A1HN/C100Y support autonomous NFC operation when the host processor is powered off?
Yes, PN7161A1HN/C100Y supports autonomous card emulation in Standby and Low-power modes without host CPU involvement. When configured in AutoMode, it can present NDEF messages, respond to ISO/IEC 14443 commands, and execute secure transactions-even with VDD(PAD) disabled. Wake-up occurs via RF field, internal timer, or WKUP_REQ pin, enabling true "always-on" NFC in battery-constrained devices.
What RF protocols and standards does PN7161A1HN/C100Y support?
PN7161A1HN/C100Y supports ISO/IEC 14443A/B (PICC and PCD), ISO/IEC 15693, MIFARE 1K/4K/DESFire, Sony FeliCa, NFC Forum Tags T1T–T5T, and NFCIP-1/NFCIP-2. It implements full NCI 2.0 compliance and supports P2P active/passive modes up to firmware 12.50.0A. ECP functionality extends interoperability with Apple devices under authorized configurations.
What is the minimum supply current for PN7161A1HN/C100Y in low-power polling mode?
PN7161A1HN/C100Y consumes ≤100 µA in low-power polling loop mode at VBAT = 3.6 V and 500 ms loop interval, as specified in Table 1 of the datasheet. This ultra-low current enables multi-day battery operation in wearables and portable devices. Current varies slightly with RF detector sensitivity setting (enhanced vs. low-sensitivity mode) and antenna tuning but remains within documented limits.
Can PN7161A1HN/C100Y be used with external DC-DC converters for higher output power?
Yes, PN7161A1HN/C100Y supports external DC-DC converters such as NXP PCA941xA (x = 0, 1, 2) via the DCDC_EN pin (HVQFN40 Pin 36). Enabling this feature allows increased transmitter output voltage and power beyond the internal TXLDO's capability, supporting demanding antenna designs or extended read ranges. Configuration is managed through firmware APIs and requires proper external circuit design per application notes.
PN7161A1HN/C100Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Reader
- Frequency:
- 13.56MHz
- Standards:
- FeliCa, ISO 14443, ISO 15693, MIFARE, NFC
- Interface:
- I2C
- Voltage - Supply:
- 1.65V ~ 1.95V, 3V ~ 3.6V
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-HVQFN (6x6)
PN7161A1HN/C100Y FAQ
1.How can I place an order for PN7161A1HN/C100Y through Aetrix?
Please submit a Request for Quotation (RFQ) for PN7161A1HN/C100Y on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PN7161A1HN/C100Y reliable?
The price and inventory of PN7161A1HN/C100Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN7161A1HN/C100Y is usually 5 days.
3.What payment methods are accepted for PN7161A1HN/C100Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN7161A1HN/C100Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN7161A1HN/C100Y?
PN7161A1HN/C100Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN7161A1HN/C100Y order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PN7161A1HN/C100Y?
For technical support, including PN7161A1HN/C100Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN7161A1HN/C100Y requirements.
6.How does Aetrix verify that PN7161A1HN/C100Y is sourced from the original manufacturer or authorized distributors?
All PN7161A1HN/C100Y products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PN7161A1HN/C100Y meets industry standards.
7.What is the process for return or replacement of PN7161A1HN/C100Y?
All PN7161A1HN/C100Y units undergo pre-shipment inspection (PSI). If there is an issue with PN7161A1HN/C100Y, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PN7161A1HN/C100Y part is unused and in its original packaging.
Return procedure for PN7161A1HN/C100Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PN7161A1HN/C100Y Tags
-
SL2S2602FTBX
NXP Semiconductors
-
ST25DV04K-IER6S3
STMicroelectronics
-
ST25DV04K-IER6C3
STMicroelectronics
-
LXMSJZNCMD-217
Murata Electronics
-
NT3H2111W0FTTJ
NXP Semiconductors
-
NT3H2111W0FHKH
NXP Semiconductors
-
M24LR04E-RMC6T/2
STMicroelectronics
-
ST25DV04KC-JF6D3
STMicroelectronics
-
ST25DV64KC-IE6S3
STMicroelectronics
-
ST25DV64K-IER6T3
STMicroelectronics
-
NT3H2211W0FTTJ
NXP Semiconductors
-
NT3H2211W0FHKH
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
