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NXP Semiconductors PN7161B1EV/C100K
- Part No.:
- PN7161B1EV/C100K
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 64-VFBGA
- Datasheet:
-
PN7161B1EV/C100K.pdf
- Description:
- IC NFC CONTROLLER SPI VFBGA64
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
PN7161B1EV/C100K from NXP Semiconductors is a SPI-interface NFC controller with integrated firmware, supporting ISO/IEC 14443A/B, ISO/IEC 15693, MIFARE, FeliCa, and NFC Forum T4T/T5T protocols. 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. Designed for mobile and portable devices requiring autonomous card emulation during host shutdown.
For engineers reviewing the PN7161B1EV/C100K datasheet, PN7161B1EV/C100K pinout, PN7161B1EV/C100K application, or PN7161B1EV/C100K equivalent, key selection criteria include ECP support (PN7161-specific), VFBGA64 package footprint, low-power polling loop current (100 μA typ.), and NCI 2.0 compliance for host integration.
Technical Context
The PN7161B1EV/C100K implements an NCI 2.0-compliant host interface over SPI, with firmware version 12.50.05 preloaded and model ID 0x71 confirming PN7161 identity. Its RF front-end supports active load modulation and Enhanced Dynamic LMA for extended range in card mode.
It integrates an ARM Cortex-M0 core, 8 kB SRAM, 28 kB EEPROM, and 128 kB ROM, enabling autonomous operation in Standby and Autonomous modes. Power states include Hard Power Down (10.5–16 μA), Standby (32–52 μA), and low-power polling loop (100 μA), all configurable via firmware commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery supply range | 2.8 V to 5.5 V - enables direct connection to single-cell Li-ion or USB-powered systems without external regulators. |
| Transmitter output power | 1.3 W - supports robust reader mode operation with high field strength for reliable tag interrogation at distance. |
| Card mode sensitivity | 20 mV(p-p) - ensures reliable detection of weak signals from passive NFC tags and cards in emulation mode. |
| Low-power polling current | 100 μA (typ.) at 500 ms loop - extends battery life in always-on NFC applications like smart locks or wearables. |
| Firmware version | 12.50.05 - initial production firmware with full ECP support for Apple ecosystem, EMVCo profile, and T4T NDEF write from RF side. |
| Host interface | SPI-bus (High-speed mode) - provides deterministic timing and lower pin count vs I²C for space-constrained PCB layouts. |
| Operating temperature | −30 °C to +85 °C - qualified for industrial and consumer portable equipment environments. |
Pinout & Package
VFBGA64 (SOT1860-1) package: 5 mm × 5 mm, 0.4 mm pitch, bottom-side ball array with exposed thermal pad. Requires controlled-impedance antenna matching network and strict decoupling per datasheet layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SPI_NSS / I2C_ADR0 | Host interface chip select / address bit 0 | Active-low SPI slave select; dual-function pin allows hardware differentiation between I²C/SPI variants on same board. |
| SPI_MOSI / I2C_ADR1 | Host interface data input / address bit 1 | Serial data input for SPI; second I²C address bit for multi-device bus configuration. |
| SPI_MISO / I2C_SDA | Host interface data output / bidirectional data line | Provides readback of status and NDEF data; open-drain compatible with I²C pull-ups. |
| SPI_SCK / I2C_SCL | Host interface clock input | Drives synchronous communication; supports up to 10 MHz SPI clock for fast firmware updates and command throughput. |
| IRQ | Interrupt request output | Active-low signal alerts host of RF events (card detection, NDEF ready) without polling overhead. |
| VEN | Hard Power Down enable | Logic-low input forces device into minimum-power HPD state; critical for system-level power sequencing control. |
| ANT1 / ANT2 | Antenna differential outputs | Drive balanced NFC antenna; require external matching network tuned to 13.56 MHz with ≤250 mA continuous current limit. |
| VBAT / VBAT2 | Main battery supply inputs | Dual VBAT pins reduce IR drop and improve RF stability; must be connected together and decoupled with ≥10 μF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced Contactless Polling (ECP) | Apple-authorized protocol extension enabling faster, more reliable polling in iOS environments - exclusive to PN7161 family. |
| Autonomous Card Emulation | Operates in Standby mode with host powered off; presents stored NDEF records via RF field without CPU or host intervention. |
| Integrated Power Management Unit | Supports Hard Power Down (10.5 μA), Standby (32 μA), and low-power polling (100 μA) - eliminates need for external PMIC in portable designs. |
| Dynamic Load Modulation Amplitude | Adjusts LMA in real time based on external field strength - extends card emulation range by up to 30% vs fixed-LMA solutions. |
| NCI 2.0 Compliance | Full NFC Forum standard implementation - ensures interoperability with Android, Windows, and Linux NFC stacks without vendor-specific drivers. |
Applications
| Smartphone NFC Module | Wearable Payment Terminal |
|---|---|
|
Use Scenario: Integration into flagship smartphone mainboard for secure element communication, contactless payment, and peer-to-peer file sharing. IC Role / Device Role / Timing Role: Primary NFC controller handling all RF protocol layers (ISO/IEC 14443, T4T, P2P) and NCI 2.0 host interface. Use Value: Enables certified EMVCo and NFC Forum compliance with 1.3 W output power ensuring >4 cm read range for payment terminals. |
Use Scenario: Embedded in wristband or smart ring for tap-to-pay functionality with persistent NDEF storage and wake-on-field capability. IC Role / Device Role / Timing Role: Standalone card emulator operating autonomously during host sleep; wakes host only on valid transaction trigger. Use Value: 100 μA low-power polling loop extends battery life to >14 days on coin cell, while ECP support ensures iOS compatibility. |
| Smart Home Gateway | Industrial Asset Tag Reader |
|
Use Scenario: Used in Wi-Fi/Zigbee gateway to enable NFC-based provisioning, firmware update, and device pairing without app installation. IC Role / Device Role / Timing Role: Reader/writer controller interfacing with microcontroller via SPI; handles ISO/IEC 15693 inventory and T5T NDEF exchange. Use Value: Integrated EEPROM stores device-specific credentials and provisioning keys; anti-tearing support prevents corruption during power loss. |
Use Scenario: Mounted on factory floor handheld scanner for reading maintenance logs and calibration data from NFC-enabled industrial sensors. IC Role / Device Role / Timing Role: High-reliability reader in harsh environments; uses enhanced RF detector (52 μA) for stable operation under EMI. Use Value: −30 °C to +85 °C rating and 20 mV(p-p) sensitivity ensure consistent read performance on metal-mounted tags with small antennas. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN7160B1EV/C100K | No ECP support; model ID 0x61; identical pinout, firmware 12.50.05, same VFBGA64 package. | Not suitable for Apple ecosystem integration or EMVCo-certified iOS payment apps. | Select when ECP is not required and cost optimization is prioritized; fully interchangeable in hardware design. |
| PN7161B1HN/C100K | HVQFN40 package (6 mm × 6 mm); different pin assignment; same SPI interface, firmware, and ECP capability. | Better thermal dissipation for high-duty-cycle reader applications; requires PCB redesign due to larger footprint and leaded package. | Choose for improved thermal management in continuous polling use cases; not pin-compatible with VFBGA64 variant. |
Compared with PN7160B1EV/C100K, PN7161B1EV/C100K adds ECP for iOS interoperability without layout change; versus PN7161B1HN/C100K, it offers 25% smaller PCB area at the cost of reduced thermal headroom for sustained 1.3 W operation.
Availability
PN7161B1EV/C100K is available at Aetrix Electronics and suitable for smartphone NFC modules, wearable payment terminals, smart home gateways, and industrial asset tag readers requiring stable component supply and long-term lifecycle support.
Supply support for PN7161B1EV/C100K 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 applications.
The PN7161 belongs to NXP's CLRC663+ family successor line, designed specifically for ultra-low-power, high-interoperability NFC applications in battery-operated consumer and IoT devices.
FAQ
What distinguishes PN7161B1EV/C100K from PN7160B1EV/C100K?
PN7161B1EV/C100K includes Enhanced Contactless Polling (ECP) support authorized by Apple, confirmed by model ID 0x71 in CORE_RESET_NTF. PN7160B1EV/C100K has model ID 0x61 and lacks ECP. Both share identical VFBGA64 packaging, SPI interface, firmware version 12.50.05, and electrical specifications - making them hardware-compatible but functionally differentiated for iOS ecosystem use.
Does PN7161B1EV/C100K support NFC Forum certification for P2P mode?
PN7161B1EV/C100K supports NFC Forum certification for P2P mode only up to firmware version 12.50.0A. Firmware 12.50.05 (shipped on this part) includes P2P functionality, but later versions such as 12.50.0B removed P2P support to optimize flash usage. Certification documentation must reference firmware 12.50.0A or earlier for P2P claims.
What is the role of the VEN pin on PN7161B1EV/C100K?
The VEN pin on PN7161B1EV/C100K controls Hard Power Down (HPD) entry: pulling VEN low (<0.4 V) forces the device into its lowest-power state (10.5–16 μA). This is distinct from software-initiated Standby mode. VEN is essential for system-level power sequencing and must be driven by the host processor or PMIC to guarantee deterministic shutdown behavior in PN7161B1EV/C100K designs.
Can PN7161B1EV/C100K operate autonomously without host CPU involvement?
Yes - PN7161B1EV/C100K supports Autonomous mode where the host configures card emulation parameters (e.g., NDEF records) and then disables VDD(PAD). The IC continues polling and responding to RF fields using internal timers and wake-up sources, drawing only 100 μA in low-power polling loop. This enables features like tap-to-wake or offline payment in PN7161B1EV/C100K-based wearables.
What antenna matching requirements apply to PN7161B1EV/C100K?
PN7161B1EV/C100K requires a tuned antenna circuit delivering ≤250 mA continuous current to ANT1/ANT2, per datasheet Section 5. Antenna impedance must be matched to 50 Ω differential at 13.56 MHz using external capacitors and inductors. Mismatch causes reduced output power, overheating, or failure to meet ETSI EN 300 330 radiated emission limits - validated during PN7161B1EV/C100K RF compliance testing.
PN7161B1EV/C100K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 64-VFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- RFID Reader
- Frequency:
- 13.56MHz
- Standards:
- FeliCa, ISO 14443, ISO 15693, MIFARE, NFC
- Interface:
- SPI
- 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:
- 64-VFBGA (4x4)
PN7161B1EV/C100K FAQ
1.How can I place an order for PN7161B1EV/C100K through Aetrix?
Please submit a Request for Quotation (RFQ) for PN7161B1EV/C100K 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 PN7161B1EV/C100K reliable?
The price and inventory of PN7161B1EV/C100K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN7161B1EV/C100K is usually 5 days.
3.What payment methods are accepted for PN7161B1EV/C100K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN7161B1EV/C100K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN7161B1EV/C100K?
PN7161B1EV/C100K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN7161B1EV/C100K 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 PN7161B1EV/C100K?
For technical support, including PN7161B1EV/C100K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN7161B1EV/C100K requirements.
6.How does Aetrix verify that PN7161B1EV/C100K is sourced from the original manufacturer or authorized distributors?
All PN7161B1EV/C100K 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 PN7161B1EV/C100K meets industry standards.
7.What is the process for return or replacement of PN7161B1EV/C100K?
All PN7161B1EV/C100K units undergo pre-shipment inspection (PSI). If there is an issue with PN7161B1EV/C100K, 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 PN7161B1EV/C100K part is unused and in its original packaging.
Return procedure for PN7161B1EV/C100K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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