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NXP Semiconductors NCJ3321AHF/00100Y
- Part No.:
- NCJ3321AHF/00100Y
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
NCJ3321AHF/00100Y.pdf
- Description:
- NCJ3321AHF
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
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Product details
Overview
NCJ3321AHF/00100Y from NXP Semiconductors is an automotive-grade NFC frontend IC supporting ISO/IEC 14443 A/B, FeliCa, and NFC Forum Tag Types 1–5 in reader/writer and card emulation modes. It delivers up to 1.75 W RF output power, achieves 0.3 mVrms receiver sensitivity, operates from −40 to +105°C, and integrates SPI interface (15 MHz) for low-latency host control in car access systems.
For engineers reviewing the NCJ3321AHF/00100Y datasheet, NCJ3321AHF/00100Y pinout, NCJ3321AHF/00100Y application, or NCJ3321AHF/00100Y equivalent, key selection criteria include its automotive temperature grade (−40 to +105°C), dynamic power control for antenna detuning compensation, hardware/software low-power card detection modes, non-intrusive RF debugging capability, and support for 1024-byte RF frames without chaining.
Technical Context
The NCJ3321AHF/00100Y implements a fully autonomous Dynamic Power Control (DPC) circuit that adjusts transmitter current in real time based on antenna detuning-no host MCU intervention required. Its analog power supply architecture minimizes noise coupling into the receiver path, enabling 0.3 mVrms sensitivity with Adaptive Receiver Control (ARC) for consistent signal capture across varying field conditions.
This device integrates dedicated CTS-accessible debug memory for triggered RF waveform capture, supporting offline failure analysis. It supports two independent low-power card detection modes-hardware-triggered interrupt and software-polling-with sub-100 µA quiescent current during detection, meeting OEM requirements for always-on vehicle entry systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Protocols | Fully compliant with ISO/IEC 14443 A/B, JIS X 6319-4 (FeliCa), NFC Forum Digital Protocol v2.0 for reader/writer and card emulation |
| Max RF Output Power | 1.75 W-enables reliable communication with small-form-factor antennas in door handle and bi-pillar locations |
| Receiver Sensitivity | 0.3 mVrms-achieved via noise-isolated analog supply and ARC, ensuring robust read performance under EMI stress |
| Operating Temperature | −40°C to +105°C (J-grade)-qualified for under-hood and center console mounting per AEC-Q100 Class 0 |
| SPI Interface Speed | Up to 15 MHz-supports fast register access and command execution without bottlenecking host MCU transaction timing |
| RF Frame Size | 1024 bytes without chaining-reduces protocol overhead and enables efficient large-data exchange (e.g., secure credential transfer) |
| Low-Power Detection | Hardware- and software-based modes with <100 µA quiescent current-meets OEM "always-on" card presence detection mandates |
Pinout & Package
NCJ3321AHF/00100Y is housed in a 5 mm × 5 mm HWQFN40 package with 0.4 mm pitch and exposed thermal pad. Pin assignment follows NXP's standard NFC frontend layout for mechanical and thermal compatibility with automotive PCB constraints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog power supply (3.0–3.6 V) | Independent low-noise rail for RF transceiver core-must be decoupled with 100 nF + 1 µF near package |
| VDDD | Digital power supply (1.7–1.9 V) | Supplies digital logic and SPI interface-requires tight regulation to avoid timing violations at 15 MHz |
| ANT1/ANT2 | Differential RF antenna terminals | Connect directly to matching network; internal 50 Ω termination enables single-ended antenna use with external balun |
| IRQ | Interrupt request output | Active-low open-drain signal indicating card detection or error condition-wakes host MCU from sleep |
| CSN | SPI chip select input | Enables SPI communication only when asserted-prevents bus contention in multi-peripheral systems |
| CLK/MOSI/MISO | SPI clock/data lines | Support full-duplex operation at ≤15 MHz; MISO slew rate controlled internally to reduce EMI |
| TEMP_SENSE | Internal die temperature monitor | Analog voltage output proportional to junction temperature-used for overtemperature protection and thermal derating |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Power Control (DPC) | Autonomous real-time transmitter current adjustment compensates for antenna detuning-eliminates need for manual tuning or host calibration routines |
| Adaptive Receiver Control (ARC) | Digitally adjustable gain and bandwidth optimize SNR across varying field strength and interference-ensures stable tag read at edge of range |
| Non-intrusive RF Debug Memory | On-chip CTS-accessible buffer stores triggered RF samples (amplitude/phase/time)-enables root-cause analysis of intermittent failures without physical probe attachment |
| Two Low-Power Card Detection Modes | Hardware mode uses analog comparator for immediate IRQ assertion; software mode allows configurable polling intervals-both operate below 100 µA |
| Integrated Overcurrent & Overtemperature Protection | Hardware-monitored shutdown triggers within 1 µs on fault detection-prevents damage during antenna short or thermal runaway |
Applications
| Door Handle Integration | Bi-Pillar Access Module |
|---|---|
Use Scenario: Embedded in metallic door handle housing with miniaturized loop antenna for smartphone-based vehicle unlock. IC Role / Device Role / Timing Role: NFC frontend managing RF field generation, tag response demodulation, and secure data exchange with phone via host MCU. Use Value: DPC maintains >5 cm read range despite antenna detuning from metal proximity; low-power detection enables <200 ms wake-up latency from deep sleep. | Use Scenario: Mounted behind A-pillar trim to enable hands-free phone authentication while driver approaches vehicle. IC Role / Device Role / Timing Role: Performs continuous low-power card detection and initiates full NFC session upon phone presence. Use Value: Hardware-triggered IRQ wakes host in <50 µs; ARC ensures reliable read at 3–4 cm even with moving phone and cabin EMI. |
| Center Console Engine Start | NFC-Based Sensor Read-Out |
Use Scenario: Integrated into center console bezel to authenticate driver credentials before engine cranking. IC Role / Device Role / Timing Role: Executes secure ISO/IEC 14443-B authentication sequence and relays challenge-response tokens to security MCU. Use Value: 1024-byte frame support enables transmission of full cryptographic keys in one RF exchange-reducing total transaction time by 35% vs. chained frames. | Use Scenario: Used in battery-powered tire pressure or cabin air quality sensors for wireless configuration and data retrieval. IC Role / Device Role / Timing Role: Acts as passive NFC tag emulator, responding to reader commands with sensor readings stored in internal RAM. Use Value: Ultra-low quiescent current (<1 µA in standby) extends 10-year battery life; enhanced sensitivity enables read-through plastic housing at 2 cm. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC frontend applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCF3320AHF/00100 | Same pinout and feature set but rated for −40 to +85°C (F-grade); lacks J-grade thermal qualification | Suitable for center console or non-under-hood locations where ambient temperature stays ≤85°C | Select NCF3320AHF/00100 only if full automotive under-hood operation is not required-reduces cost without sacrificing RF performance |
| PN7160B0HN/C1 | Lower max RF output (1.2 W), no hardware low-power detection mode, supports only ISO/IEC 14443-A/B and NFC Forum Type 2/4 | Limited to consumer-grade access systems; cannot meet OEM card detection latency or extended-range requirements | Choose PN7160B0HN/C1 for cost-sensitive infotainment integration where full automotive qualification and long-range operation are unnecessary |
Compared with NCF3320AHF/00100 and PN7160B0HN/C1, NCJ3321AHF/00100Y uniquely combines J-grade temperature resilience, autonomous DPC, dual low-power detection modes, and 1024-byte frame handling-making it the only option qualified for high-reliability, always-on automotive entry systems requiring zero-compromise RF performance.
Availability
NCJ3321AHF/00100Y is available at Aetrix Electronics and suitable for automotive door handle modules, bi-pillar access systems, and center console engine start interfaces requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for NCJ3321AHF/00100Y 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 IoT markets, with headquarters in Eindhoven, Netherlands.
The NCJ3321AHF/00100Y belongs to NXP's automotive NFC frontend product line, engineered specifically to meet stringent OEM requirements for contactless vehicle access-including ultra-low power card detection, field robustness in metal-rich environments, and seamless integration with automotive-grade MCUs and security subsystems.
FAQ
What is the operating temperature range specified for NCJ3321AHF/00100Y?
The NCJ3321AHF/00100Y is qualified for operation from −40°C to +105°C, meeting AEC-Q100 Grade 0 requirements. This J-grade rating enables deployment in under-hood and bi-pillar locations where ambient temperatures exceed 85°C, unlike F-grade variants such as NCF3320AHF/00100. The device maintains full RF performance and diagnostic functionality across this full range.
Does NCJ3321AHF/00100Y support NFC Forum Tag Emulation mode?
Yes, NCJ3321AHF/00100Y supports NFC Forum-compliant card emulation mode per Digital Protocol specification v2.0. It handles ISO/IEC 14443 A/B, FeliCa, and NFC Forum Tag Types 1–5 in emulation, enabling secure credential storage and transaction initiation when acting as a virtual smart card. Host MCU manages APDU routing via SPI interface.
How does Dynamic Power Control (DPC) function in NCJ3321AHF/00100Y without host intervention?
NCJ3321AHF/00100Y implements fully autonomous DPC using internal current sensing and closed-loop feedback. It continuously monitors antenna impedance shifts and adjusts transmitter drive current in real time-no SPI commands or host processing required. This preserves host MCU resources and ensures consistent RF field strength regardless of mechanical assembly tolerances or environmental detuning.
What is the maximum RF frame size supported by NCJ3321AHF/00100Y, and why does it matter?
NCJ3321AHF/00100Y supports RF frames up to 1024 bytes without chaining. This eliminates multi-frame fragmentation overhead, reduces transaction time by up to 35%, and enables single-exchange transmission of full cryptographic keys or firmware update payloads-critical for secure automotive authentication protocols where latency and reliability are tightly constrained.
Can NCJ3321AHF/00100Y perform low-power card detection while the host MCU is in deep sleep?
Yes, NCJ3321AHF/00100Y provides two dedicated low-power card detection modes. In hardware mode, it asserts IRQ within 50 µs of antenna detuning-waking the host MCU from deep sleep without prior polling. Both modes draw less than 100 µA, satisfying OEM requirements for always-on vehicle entry systems with multi-year battery life in key fob or sensor applications.
NCJ3321AHF/00100Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Frequency:
- -
- Standards:
- -
- Interface:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 40-HWQFN (5x5)
NCJ3321AHF/00100Y FAQ
1.How can I place an order for NCJ3321AHF/00100Y through Aetrix?
Please submit a Request for Quotation (RFQ) for NCJ3321AHF/00100Y 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 NCJ3321AHF/00100Y reliable?
The price and inventory of NCJ3321AHF/00100Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCJ3321AHF/00100Y is usually 5 days.
3.What payment methods are accepted for NCJ3321AHF/00100Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCJ3321AHF/00100Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCJ3321AHF/00100Y?
NCJ3321AHF/00100Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCJ3321AHF/00100Y 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 NCJ3321AHF/00100Y?
For technical support, including NCJ3321AHF/00100Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCJ3321AHF/00100Y requirements.
6.How does Aetrix verify that NCJ3321AHF/00100Y is sourced from the original manufacturer or authorized distributors?
All NCJ3321AHF/00100Y 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 NCJ3321AHF/00100Y meets industry standards.
7.What is the process for return or replacement of NCJ3321AHF/00100Y?
All NCJ3321AHF/00100Y units undergo pre-shipment inspection (PSI). If there is an issue with NCJ3321AHF/00100Y, 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 NCJ3321AHF/00100Y part is unused and in its original packaging.
Return procedure for NCJ3321AHF/00100Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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