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NXP Semiconductors PN7161A1HN/C100E
- Part No.:
- PN7161A1HN/C100E
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PN7161A1HN/C100E.pdf
- Description:
- IC NFC CONTROLLER I2C HVQFN40
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
PN7161A1HN/C100E from NXP Semiconductors is a Near Field Communication (NFC) controller IC with integrated NCI 2.0 interface and firmware, supporting ISO/IEC 14443A/B, ISO/IEC 15693, MIFARE, FeliCa, and NFC Forum T1–T5 tags. It delivers 1.3 W transmitter output power, 20 mV(p-p) card-mode receiver sensitivity, and operates across 2.8–5.5 V battery supply. It enables autonomous card emulation in mobile and wearable devices without host processor wake-up.
For engineers reviewing the PN7161A1HN/C100E datasheet, PN7161A1HN/C100E pinout, PN7161A1HN/C100E application, or PN7161A1HN/C100E equivalent, key selection criteria include ECP support for Apple ecosystem compliance, HVQFN40 package compatibility with compact antenna layouts, low-power polling loop current (100 μA), and I²C host interface with NCI 2.0 protocol stack.
Technical Context
The PN7161A1HN/C100E implements an ARM Cortex-M0 core with 128 kB ROM, 8 kB SRAM, and 28 kB EEPROM for firmware execution and NDEF storage. Its RF front-end supports dynamic power control, enhanced DLMA, and independent 5° LMA phase adjustment per Type A/B/F - enabling robust communication at extended range and with small-form-factor antennas.
It operates in four system power modes: Full Power, Autonomous (host-off card emulation), Low-Power (VBAT only), and Hard Power Down. Firmware version 12.50.05 - preloaded on this variant - enables Enhanced Contactless Polling (ECP) under formal Apple authorization and supports T4T NDEF write from RF side.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery Supply Range | 2.8 V to 5.5 V - enables direct connection to Li-ion/Li-poly battery rails without external regulators. |
| Transmitter Output Power | 1.3 W - sufficient for full-range reader mode operation compliant with ISO/IEC 14443 and EMVCo requirements. |
| Card Mode Sensitivity | 20 mV(p-p) - ensures reliable detection of weak field signals from passive cards and tags. |
| Low-Power Polling Current | 100 μA @ 500 ms loop - extends battery life in always-on NFC discovery applications like smart locks or wearables. |
| Firmware Version | 12.50.05 - initial production firmware with ECP support (Apple-authorized), T4T NDEF write, and EMVCo profile readiness. |
| Host Interface | I²C-bus High-Speed mode - simplifies integration with application processors using standard NCI 2.0 command set. |
| Operating Temperature | −30 °C to +85 °C - qualified for industrial and consumer portable equipment environments. |
Pinout & Package
HVQFN40 package (SOT618-1), 6 × 6 mm, 0.5 mm pitch, exposed thermal pad - optimized for thermal performance and PCB space efficiency in handheld and wearable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I2C_ADR0/SPI_NSS | Host Interface Select | Configures I²C address or SPI slave select; fixed for I²C mode in PN7161A1HN/C100E. |
| IRQ | Interrupt Request Output | Active-low signal alerts host of RF events (card detect, NDEF ready) without polling. |
| VEN | Hard Power-Down Control | Logic-low input forces device into minimum-current HPD state; critical for system-level power gating. |
| TX1 / TX2 | RF Transmitter Outputs | Differential antenna drive outputs supporting up to 1.3 W total output; require matching network. |
| RXP / RXN | Receiver Inputs | Differential analog inputs for contactless signal demodulation; referenced to VDD(A) and VDD(VMID). |
| VDD(PAD) | Host Interface Supply | 3.3 V ±10 % supply for I²C logic; decoupled separately to ensure noise immunity on control bus. |
| VBAT / VBAT2 | Main Battery Input | Primary 2.8–5.5 V power rail; internally connected to enable single-point battery routing on PCB. |
| ANT1 / ANT2 | Wake-Up Antenna Terminals | Enable RF-field-triggered wake from Standby without host intervention - essential for ultra-low-power card emulation. |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced Contactless Polling (ECP) | Enables Apple ecosystem interoperability in card emulation mode; requires formal authorization and firmware activation. |
| Autonomous Card Emulation | Permits NDEF message presentation (e.g., access credential, transit ticket) while host CPU remains powered off - no software stack required. |
| Integrated Power Management Unit | Supports Hard Power Down (10.5 μA), Standby (32–52 μA), and low-power polling (100 μA); eliminates need for external PMIC sequencing. |
| Dynamic Load Modulation Amplitude (DLMA) | Automatically adjusts modulation depth based on field strength - improves read range and reliability with variable antenna coupling. |
| NCI 2.0 Compliance | Ensures interoperability with Android and Linux NFC stacks; includes standardized core, RF, and prop command sets. |
Applications
| Mobile Device Secure Element Interface | Wearable Access Credential Terminal |
|---|---|
|
Use Scenario: Integration into smartphone mainboard to provide secure NFC reader/writer and card emulation functions alongside eSE or UICC. IC Role / Device Role / Timing Role: Primary NFC controller handling RF protocol stack, NCI interface, and secure NDEF exchange with host AP. Use Value: Enables certified payment (EMVCo), transit ticketing, and peer-to-peer sharing via standardized NCI 2.0 - reducing integration effort by >40% vs discrete RF+MCU solutions. |
Use Scenario: Embedded in smartwatch or fitness band to emulate access cards or loyalty tokens without waking main MCU. IC Role / Device Role / Timing Role: Autonomous NFC endpoint operating in Standby mode, responding to RF field with preloaded NDEF records. Use Value: Achieves <100 μA average current during polling loop - extending battery life to >7 days on coin-cell power while maintaining instant tap response. |
| Smart Home Gateway Tag Reader | Industrial Asset Authentication Module |
|
Use Scenario: Used in Wi-Fi/Zigbee hub to read NFC tags on appliances, sensors, or user credentials for provisioning and pairing. IC Role / Device Role / Timing Role: Reader/writer controller interfacing with Linux-based gateway OS via I²C and NCI stack. Use Value: Supports multi-protocol reading (MIFARE Classic, ISO15693, T4T) in single hardware design - eliminating need for multiple tag readers. |
Use Scenario: Mounted on factory-floor equipment to authenticate maintenance tools or calibration dongles via NFC handshake. IC Role / Device Role / Timing Role: Tamper-resistant authentication node verifying signed NDEF payloads against embedded public keys. Use Value: Leverages on-chip EEPROM (28 kB) and anti-tearing support to store cryptographic keys and audit logs - meeting IEC 62443 functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN7160A1HN/C100E | No ECP support; identical pinout, firmware baseline 12.50.05, same HVQFN40 package. | Lacks Apple ECP certification path; suitable for non-Apple-ecosystem reader/card use cases. | Select when ECP is not required and cost optimization is prioritized over future Apple interoperability. |
| ST25DV04K-IER | I²C-based dynamic NFC tag (not controller); 4 kB EEPROM; no RF transmitter; passive-only operation. | Acts as memory tag, not active reader/emulator; requires external NFC field source. | Choose only for simple data storage/transfer roles where host-initiated RF generation is handled elsewhere. |
Compared with PN7160A1HN/C100E, the PN7161A1HN/C100E adds ECP capability for Apple-compliant card emulation while retaining identical power, interface, and packaging - making it the preferred choice for premium mobile and wearable platforms requiring ecosystem certification. The ST25DV04K-IER serves a fundamentally different passive role and cannot replace the PN7161A1HN/C100E in controller applications.
Availability
PN7161A1HN/C100E is available at Aetrix Electronics and suitable for mobile devices, wearable electronics, smart home gateways, and industrial asset authentication systems requiring stable component supply and long-term lifecycle support.
Supply support for PN7161A1HN/C100E 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 deep expertise in NFC, RFID, and secure element technologies.
The PN7161 belongs to NXP's PN716x NFC controller family, designed specifically for seamless integration into resource-constrained portable devices requiring certified, low-power, multi-standard contactless communication.
FAQ
What is the primary function of the PN7161A1HN/C100E in an NFC system?
The PN7161A1HN/C100E serves as a fully integrated NFC controller IC that handles all RF protocol layers (ISO/IEC 14443, 15693, FeliCa, MIFARE), executes NCI 2.0 commands, and manages autonomous card emulation. It replaces discrete RF frontend + microcontroller combinations, reducing BOM count and PCB footprint. Its integrated firmware and ARM Cortex-M0 core allow direct NDEF processing without host CPU involvement in standby mode.
Does the PN7161A1HN/C100E support Apple's Enhanced Contactless Polling (ECP)?
Yes, the PN7161A1HN/C100E supports ECP as a hardware-enabled feature, but activation requires formal Apple authorization and corresponding firmware configuration. ECP is not enabled by default; it must be provisioned post-manufacturing under Apple's licensing program. The PN7161A1HN/C100E ships with firmware version 12.50.05, which includes ECP support ready for authorized deployment.
What are the power supply requirements for the PN7161A1HN/C100E?
The PN7161A1HN/C100E requires two primary supplies: VBAT (2.8 V to 5.5 V) for RF transmitter and core logic, and VDD(PAD) (3.0 V to 3.6 V) for I²C interface signaling. VBAT powers the transmitter stage (VDD(TX)), analog blocks (VDD(A), VDD(HF)), and internal LDOs. VDD(PAD) must remain stable during host communication; decoupling capacitors are mandatory per Section 12.2 of the datasheet.
Can the PN7161A1HN/C100E operate without the host processor powered on?
Yes, the PN7161A1HN/C100E supports Autonomous mode: when configured by the host and placed in Standby, it can respond to RF fields and present preloaded NDEF messages (e.g., access credential, transit token) without any VDD(PAD) supply or host CPU activity. Wake-up is triggered via ANT1/ANT2 pins or internal RF detector, enabling true zero-power card emulation.
What package type and pin count does the PN7161A1HN/C100E use?
The PN7161A1HN/C100E uses the HVQFN40 (SOT618-1) package: a 6 mm × 6 mm, 0.5 mm pitch, thermally enhanced quad flat no-lead package with 40 terminals and an exposed center thermal pad. This package is optimized for compact portable designs and provides superior thermal dissipation versus VFBGA64 variants, especially under sustained 1.3 W transmitter operation.
PN7161A1HN/C100E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tray
- 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/C100E FAQ
1.How can I place an order for PN7161A1HN/C100E through Aetrix?
Please submit a Request for Quotation (RFQ) for PN7161A1HN/C100E 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/C100E reliable?
The price and inventory of PN7161A1HN/C100E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN7161A1HN/C100E is usually 5 days.
3.What payment methods are accepted for PN7161A1HN/C100E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN7161A1HN/C100E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN7161A1HN/C100E?
PN7161A1HN/C100E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN7161A1HN/C100E 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/C100E?
For technical support, including PN7161A1HN/C100E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN7161A1HN/C100E requirements.
6.How does Aetrix verify that PN7161A1HN/C100E is sourced from the original manufacturer or authorized distributors?
All PN7161A1HN/C100E 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/C100E meets industry standards.
7.What is the process for return or replacement of PN7161A1HN/C100E?
All PN7161A1HN/C100E units undergo pre-shipment inspection (PSI). If there is an issue with PN7161A1HN/C100E, 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/C100E part is unused and in its original packaging.
Return procedure for PN7161A1HN/C100E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PN7161A1HN/C100E Tags
-
SL2S2602FTBX
NXP Semiconductors
-
ST25DV04K-IER6S3
STMicroelectronics
-
ST25DV04K-IER6C3
STMicroelectronics
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LXMSJZNCMD-217
Murata Electronics
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NT3H2111W0FTTJ
NXP Semiconductors
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NT3H2111W0FHKH
NXP Semiconductors
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M24LR04E-RMC6T/2
STMicroelectronics
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ST25DV04KC-JF6D3
STMicroelectronics
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ST25DV64KC-IE6S3
STMicroelectronics
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ST25DV64K-IER6T3
STMicroelectronics
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NT3H2211W0FTTJ
NXP Semiconductors
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NT3H2211W0FHKH
NXP Semiconductors
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