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NXP Semiconductors IW611HN/A1IK
- Part No.:
- IW611HN/A1IK
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 116-VFQFN Dual Rows, Exposed Pad
- Datasheet:
-
IW611HN/A1IK.pdf
- Description:
- IC RF 116HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,851
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Product details
Overview
IW611HN/A1IK from NXP Semiconductors is a dual-band 2.4/5 GHz Wi-Fi 6 (802.11ax) and Bluetooth 5.2 single-chip solution with integrated 1x1 RF front end (PA/LNA/switch), SDIO 3.0 host interface, and UART-based Bluetooth HCI - enabling concurrent high-efficiency wireless connectivity for smart home hubs, voice-controlled speakers, and industrial gateways.
For engineers reviewing the IW611HN/A1IK datasheet, IW611HN/A1IK pinout, IW611HN/A1IK application, or IW611HN/A1IK equivalent, key selection considerations include its integrated coexistence support, LE Audio-ready isochronous channel capability, WPA3 encryption compliance, and dual-antenna configuration flexibility without external FEMs.
Technical Context
The IW611HN/A1IK implements two independent protocol stacks: an 802.11ax MAC/baseband/radio subsystem supporting 20/40/80 MHz channels, MU-MIMO, OFDMA, and 802.11az ranging; and a Bluetooth 5.2 subsystem with dual-mode BDR/EDR and LE operation, including 2 Mbps LE data rate, long range, and isochronous channels for LE Audio.
Hardware-level coexistence is enabled via dedicated GPIO signaling between Wi-Fi and Bluetooth subsystems, while dual CPU cores (Wi-Fi and Bluetooth) ensure real-time, isolated protocol processing. The device supports both single-antenna (with diplexer) and dual-antenna configurations, with integrated 5 GHz and 2.4 GHz transceivers sharing no RF path with Bluetooth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wi-Fi Standard | IEEE 802.11ax (Wi-Fi 6), backward compatible with 802.11ac/n/a/g/b - enables higher throughput, lower latency, and improved multi-user efficiency in dense IoT environments. |
| Bluetooth Version | Bluetooth 5.2 with LE 5.3 features - supports 2 Mbps LE data rate, long range, advertising extensions, and isochronous channels for synchronized audio streaming. |
| RF Bands | 2.4 GHz (channels 1–13) and 5 GHz (channels 36–177, plus UNII-2e/3/4) - full regulatory compliance across global markets without external band-select switches. |
| Host Interface | SDIO 3.0 (up to SDR104, 208 MHz) for Wi-Fi; UART (up to 3 Mbps) for Bluetooth - eliminates need for PCIe or USB controllers and simplifies host processor integration. |
| Security | WPA2/WPA3 Personal & Enterprise; AES-CCMP/GCMP encryption; BIP-GMAC for management frames - meets modern IoT security requirements out of the box. |
| Audio Interfaces | I2S/PCM shared pins with 8/16-bit slot support, 4.096/2.048/2 MHz clock options - enables direct connection to ADC/DAC or voice DSP without external audio bridge ICs. |
| Power Supply | 3.3 V and 1.8 V supplies - matches standard I/O voltage domains of application processors and microcontrollers in embedded systems. |
Pinout & Package
The IW611HN/A1IK is housed in a 7.0 mm × 7.0 mm × 1.0 mm 64-pin QFN package with exposed thermal pad (RoHS-compliant, lead-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDIO_CLK / SDIO_CMD / SDIO_D[0:3] | Wi-Fi host interface signals | Compliant SDIO 3.0 bus (4-bit mode) for high-speed Wi-Fi data transfer up to 208 MHz; supports SDR104 timing for low-latency streaming. |
| UART_TX / UART_RX / UART_CTS / UART_RTS | Bluetooth host control interface | Full-handshake UART at up to 3 Mbps - enables robust HCI communication with host stack, including flow control for reliable firmware updates. |
| I2S_BCLK / I2S_LRCLK / I2S_DIN / I2S_DOUT | Digital audio interface (shared with PCM) | Configurable I2S/PCM interface supporting mono/dual-channel voice paths - required for hands-free profiles (HFP), A2DP, and LE Audio synchronization. |
| GPIO_0–GPIO_7 | General-purpose I/O | Programmable for coexistence signaling (e.g., BT_WLAN_ACTIVE), LED control, reset coordination, or antenna selection in dual-antenna mode. |
| XTAL_IN / XTAL_OUT | 26 MHz crystal oscillator reference | Drives internal PLLs for Wi-Fi/Bluetooth radio timing; supports ±20 ppm stability requirement for 802.11ax and Bluetooth 5.2 frequency accuracy. |
| VDD_3V3 / VDD_1V8 / GND / EPAD | Power and ground terminals | Dedicated 3.3 V and 1.8 V supply rails with low-noise decoupling; exposed thermal pad ensures junction temperature remains within safe operating limits at full RF output. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF Front End | On-die PA, LNA, and Tx/Rx switch eliminate external FEM - reduces BOM count by ≥5 components and PCB area by >15 mm² in typical layouts. |
| Wi-Fi/Bluetooth Coexistence | Hardware-assisted GPIO signaling and time-sliced scheduling - prevents packet loss during simultaneous Wi-Fi download and Bluetooth audio streaming. |
| LE Audio Support | Hardware-accelerated isochronous channel handling - enables synchronized multi-stream audio (e.g., broadcast to multiple earbuds) with sub-20 ms latency. |
| 802.11az Fine Timing Measurement | Sub-meter ranging accuracy using TMR exchange - enables precise indoor location services for smart home automation and asset tracking. |
| Dynamic Frequency Selection | Real-time radar pulse detection in 5 GHz UNII-2/3 bands - ensures regulatory compliance in DFS-enabled regions without host software intervention. |
| Low-Power Operation | Multiple sleep states (PS-Poll, U-APSD, sniff mode) with <10 µA deep-sleep current - extends battery life in portable and energy-harvested IoT endpoints. |
Applications
| Smart Speaker Integration | Voice-Controlled Gateway |
|---|---|
|
Use Scenario: Compact smart speaker with far-field voice pickup, local voice assistant processing, and cloud streaming over Wi-Fi. IC Role / Device Role / Timing Role: Primary wireless SoC handling concurrent Wi-Fi 6 uplink (streaming audio to cloud) and Bluetooth 5.2 LE Audio downlink (firmware updates, companion app pairing). Use Value: Integrated I2S/PCM and coexistence logic enable seamless dual-radio operation without audio dropouts or latency spikes during simultaneous use. |
Use Scenario: Home automation hub bridging Zigbee/Z-Wave sensors to Wi-Fi/IP network while supporting Bluetooth provisioning and OTA updates. IC Role / Device Role / Timing Role: Central wireless controller managing Wi-Fi 6 backhaul, Bluetooth 5.2 peripheral role for sensor commissioning, and hardware-based coexistence arbitration. Use Value: Dual-antenna configuration allows dedicated 2.4 GHz Wi-Fi and Bluetooth paths - eliminating interference during concurrent mesh network setup and cloud sync. |
| Industrial Edge Gateway | Smart Appliance Control Panel |
|
Use Scenario: Factory-floor gateway collecting Modbus RTU data from PLCs and forwarding via secure Wi-Fi 6 to SCADA cloud platform. IC Role / Device Role / Timing Role: Wi-Fi 6 STA with WPA3-Enterprise authentication and Bluetooth 5.2 central role for local diagnostics via technician handheld devices. Use Value: 802.11k/v/r roaming and 802.11az ranging support seamless handoff between APs and accurate indoor positioning of maintenance personnel. |
Use Scenario: Refrigerator control panel requiring secure Wi-Fi onboarding, Bluetooth LE proximity unlock, and voice command via built-in mic/speaker. IC Role / Device Role / Timing Role: Dual-radio SoC executing Wi-Fi 6 station + Bluetooth 5.2 dual-mode (BR/EDR + LE) with shared I2S audio path for voice feedback. Use Value: Single-chip integration reduces bill-of-materials cost by $1.20+ versus discrete Wi-Fi + Bluetooth solutions while meeting IEC 60730 Class B functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-band Wi-Fi 6 and Bluetooth 5.2 applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESP32-C6 (Espressif) | 2.4 GHz Wi-Fi 6 only; no 5 GHz support; RISC-V dual-core vs. proprietary NXP cores; lacks 802.11az ranging and DFS radar detection. | Suitable for cost-sensitive, single-band applications where 5 GHz capacity and regulatory compliance in DFS bands are not required. | Select ESP32-C6 when 5 GHz operation and fine timing measurement are unnecessary and open-source SDK preference outweighs certified coexistence robustness. |
| QCA6391 (Qualcomm) | Wi-Fi 6E (6 GHz capable); Bluetooth 5.2; larger 9×9 mm package; requires external PA/LNA; supports PCIe instead of SDIO. | Targeted at premium laptops and docking stations needing 6 GHz spectrum access and higher throughput than 1x1 5 GHz can deliver. | Choose QCA6391 only when 6 GHz bandwidth, PCIe host interface, and higher RF output power justify added complexity and cost over IW611HN/A1IK's integrated 5 GHz solution. |
Compared with ESP32-C6 and QCA6391, the IW611HN/A1IK delivers verified 2.4/5 GHz Wi-Fi 6 + Bluetooth 5.2 integration in a compact QFN with zero external RF components, making it optimal for space-constrained, certification-critical IoT endpoints where coexistence reliability and regulatory compliance are non-negotiable.
Availability
IW611HN/A1IK is available at Aetrix Electronics and suitable for smart home hubs, voice-controlled speakers, and industrial gateways requiring stable component supply, full regulatory certification, and long-term lifecycle support.
Supply support for IW611HN/A1IK 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The IW611HN/A1IK belongs to NXP's i.MX Wireless family, designed specifically for ultra-low-power, dual-radio IoT edge devices requiring certified Wi-Fi 6 and Bluetooth 5.2 interoperability in resource-constrained environments.
FAQ
Does IW611HN/A1IK support 5 GHz DFS channels such as UNII-2e (channels 52–64) and UNII-3 (100–140)?
Yes, IW611HN/A1IK fully supports DFS operation across UNII-2e and UNII-3 bands per FCC/ETSI requirements. Its integrated radar pulse detection engine performs real-time spectral monitoring and automatic channel switching without host intervention - a mandatory feature for legal deployment in these regulated 5 GHz segments. This capability is validated in the IW611HN/A1IK production firmware and documented in Section 2.5 and 2.3 of the product brief.
What audio interfaces does IW611HN/A1IK provide, and are they shared between Wi-Fi and Bluetooth subsystems?
IW611HN/A1IK provides a shared I2S/PCM interface with configurable 8/16-bit slots and support for mono/dual-channel modes. These pins are used exclusively by the Bluetooth subsystem for voice path handling (HFP, A2DP, LE Audio), not by Wi-Fi. The interface operates at 4.096/2.048/2 MHz clock rates and supports both central and peripheral modes - enabling direct connection to external DACs, ADCs, or audio codecs without additional glue logic.
Is IW611HN/A1IK pin-compatible with other members of the IW6xx family, such as IW612?
No, IW611HN/A1IK is not pin-compatible with IW612. While both share the same 64-pin QFN footprint, IW612 adds 802.15.4 radio functionality and requires additional GPIOs and RF routing not present in IW611HN/A1IK's pinout. Pin assignments for coexistence signaling, antenna switching, and 802.15.4-specific functions differ - board redesign is required for migration. Refer to IW612 datasheet Table 3 for confirmed pin mapping differences.
What security protocols does IW611HN/A1IK support for Wi-Fi and Bluetooth connections?
IW611HN/A1IK supports WPA2 and WPA3 Personal & Enterprise for Wi-Fi, with AES-CCMP/GCMP frame encryption and BIP-GMAC for protected management frames. For Bluetooth, it implements Secure Connections (LE SC), AES-CCM encryption, and Bluetooth LE Privacy 1.3 - all enforced in hardware. These capabilities are implemented in the on-chip security engines and require no external crypto accelerators or software-only fallbacks.
Can IW611HN/A1IK operate in dual-antenna mode with separate 2.4 GHz and 5 GHz antennas while maintaining Bluetooth coexistence?
Yes, IW611HN/A1IK supports dual-antenna configuration with physically separate 2.4 GHz and 5 GHz antennas, as shown in Figure 2 of the product brief. Bluetooth uses a shared Tx/Rx path but employs hardware coexistence signaling (via dedicated GPIOs) and time-division multiplexing to prevent interference - enabling simultaneous 2.4 GHz Wi-Fi, 5 GHz Wi-Fi, and Bluetooth operation without performance degradation.
IW611HN/A1IK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 116-VFQFN Dual Rows, Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- -
- RF Family/Standard:
- -
- Protocol:
- -
- Modulation:
- -
- Frequency:
- -
- Data Rate (Max):
- -
- Power - Output:
- -
- Sensitivity:
- -
- Memory Size:
- -
- Serial Interfaces:
- -
- GPIO:
- -
- Voltage - Supply:
- -
- Current - Receiving:
- -
- Current - Transmitting:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 116-HVQFN (9x9)
IW611HN/A1IK FAQ
1.How can I place an order for IW611HN/A1IK through Aetrix?
Please submit a Request for Quotation (RFQ) for IW611HN/A1IK 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 IW611HN/A1IK reliable?
The price and inventory of IW611HN/A1IK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW611HN/A1IK is usually 5 days.
3.What payment methods are accepted for IW611HN/A1IK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW611HN/A1IK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW611HN/A1IK?
IW611HN/A1IK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW611HN/A1IK 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 IW611HN/A1IK?
For technical support, including IW611HN/A1IK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW611HN/A1IK requirements.
6.How does Aetrix verify that IW611HN/A1IK is sourced from the original manufacturer or authorized distributors?
All IW611HN/A1IK 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 IW611HN/A1IK meets industry standards.
7.What is the process for return or replacement of IW611HN/A1IK?
All IW611HN/A1IK units undergo pre-shipment inspection (PSI). If there is an issue with IW611HN/A1IK, 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 IW611HN/A1IK part is unused and in its original packaging.
Return procedure for IW611HN/A1IK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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