NXP Semiconductors IW416UK/A1IZ
- Part No.:
- IW416UK/A1IZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 76-UFBGA, WLCSP
- Datasheet:
-
IW416UK/A1IZ.pdf
- Description:
- IC RF TXRX 802.15.4 76WLCSP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
IW416UK/A1IZ from NXP Semiconductors is a dual-band 1×1 Wi-Fi 4 (802.11n) and Bluetooth 5.2 Combo SoC supporting simultaneous 2.4 GHz/5 GHz Wi-Fi operation at up to 150 Mbit/s PHY rate and Bluetooth LE 2 Mbps, Long Range, and Periodic Advertising Sync Transfer. It integrates TX PAs, RX LNAs, and RF switches for single- or dual-antenna configurations and targets industrial-grade embedded connectivity in smart home gateways, IP cameras, and asset trackers.
For engineers reviewing the IW416UK/A1IZ datasheet, IW416UK/A1IZ pinout, IW416UK/A1IZ application, or IW416UK/A1IZ equivalent, key selection considerations include its WLCSP76 package with 0.35 mm pitch, industrial temperature range (−40 to +85 °C), SDIO 3.0 + UART host interfaces, integrated coexistence hardware (PTA/WCI-2), and dual ARM CPU architecture (Wi-Fi @ 160 MHz, Bluetooth @ 128 MHz).
Technical Context
The IW416UK/A1IZ implements independent ARM-based Wi-Fi and Bluetooth subsystems with dedicated baseband/MAC logic, on-chip RF front ends (2.4 GHz and 5 GHz Wi-Fi transceivers + Bluetooth 2.4 GHz transceiver), and a central hardware packet traffic arbiter for internal Wi-Fi/Bluetooth coexistence. Its dual-antenna configuration enables true concurrent operation, while single-antenna mode supports arbitrated 2.4 GHz Wi-Fi/Bluetooth and simultaneous 5 GHz Wi-Fi/Bluetooth.
It supports IEEE 802.11a/b/g/n (including DFS, TPC, and 802.11k/v/r/u/w) and Bluetooth 5.1/5.2 features (LE 2 Mbps, Long Range, PAST, Secure Connections), with AES encryption for both Wi-Fi (WPA3/WPA2) and Bluetooth (AES-CCM). Audio is handled via shared I2S/PCM interfaces with hardware-accelerated SCO/eSCO processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wi-Fi Standard | IEEE 802.11n (Wi-Fi 4) with full 2.4 GHz and 5 GHz band support, including DFS radar detection and TPC. |
| Max Wi-Fi Data Rate | 150 Mbit/s (MCS7, 40 MHz channel), enabling high-throughput streaming and firmware updates over 5 GHz. |
| Bluetooth Version | Bluetooth 5.2 certified, supporting LE 2 Mbps, Long Range (4× coverage), and Periodic Advertising Sync Transfer (PAST). |
| Host Interfaces | SDIO 3.0 (Wi-Fi) and high-speed UART up to 3 Mbit/s (Bluetooth), enabling low-latency host communication without shared bus contention. |
| Supply Voltages | 1.05 V (core), 1.8 V (I/O), and 2.2 V (RF), requiring three independent LDOs or PMIC rails for stable operation. |
| Operating Temperature | −40 °C to +85 °C (industrial grade), validated for deployment in uncontrolled environments like building automation nodes and outdoor IoT sensors. |
| Package | WLCSP76 (3.95 mm × 3.565 mm × 0.495 mm, 0.35 mm pitch), optimized for space-constrained PCB layouts in portable and wearable devices. |
Pinout & Package
Package: WLCSP76 - 76-bump wafer-level chip-scale package, 0.35 mm pitch, 3.95 mm × 3.565 mm body size, suitable for high-density HDI PCBs with microvia routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD_DAT[0–3], SD_CMD, SD_CLK | Wi-Fi SDIO 3.0 interface | 6-pin high-speed parallel bus for Wi-Fi data/control; requires impedance-controlled traces and proper termination for >50 MHz clock operation. |
| UART_SIN, UART_SOUT, UART_RTSn, UART_CTSn | Bluetooth UART interface | 4-wire flow-controlled UART supporting up to 3 Mbit/s; enables direct connection to host MCU without protocol translation. |
| BRF_ANT, RF_TR_2, RF_TR_5 | Bluetooth and Wi-Fi RF terminals | Direct RF connections to antenna switch/diplexer; BRF_ANT is single-ended Bluetooth path; RF_TR_2/RF_TR_5 are 2.4 GHz/5 GHz transmit-receive paths. |
| XTAL_IN, XTAL_OUT | Reference clock input/output | Supports 40 MHz fundamental-mode crystal; external oscillator not required; critical for frequency stability across Wi-Fi/Bluetooth bands. |
| WCI-2_SIN, WCI-2_SOUT, EXT_REQ, EXT_GNT | Coexistence control signals | Hardware arbitration lines for Wi-Fi/Bluetooth internal coexistence and external radio (e.g., 802.15.4) coordination via PTA or WCI-2 protocols. |
| PDn, SLP_CLK_IN | Power management inputs | Active-low power-down enables deep-sleep mode; SLP_CLK_IN accepts external sleep clock for low-power timing during suspend states. |
Key Features
| Feature | Design Value |
|---|---|
| Dual ARM CPU architecture | Independent 160 MHz Wi-Fi CPU and 128 MHz Bluetooth CPU eliminate software-level resource contention and enable concurrent protocol stack execution. |
| Integrated RF front end | On-die 2.4 GHz/5 GHz PAs, LNAs, and SPDT switches reduce BOM count by ≥6 discrete RF components and simplify antenna matching network design. |
| Hardware coexistence engine | Central packet traffic arbiter manages time-domain scheduling between Wi-Fi/Bluetooth radios and one external radio (e.g., Zigbee), minimizing latency and packet loss. |
| I2S/PCM audio sharing | Single set of pins supports both I2S and PCM modes with configurable bit width (8/16-bit) and slot count (up to 4), reducing pin count for voice-enabled edge devices. |
| Industrial temperature qualification | Full functionality verified from −40 °C to +85 °C, ensuring reliable operation in factory-floor gateways, HVAC controllers, and outdoor surveillance systems. |
Applications
| Smart Home Gateway | Industrial Asset Tracker |
|---|---|
Use Scenario: Central hub connecting BLE sensors, Wi-Fi cameras, and cloud services in residential or commercial buildings. IC Role / Device Role / Timing Role: Dual-radio SoC managing concurrent Wi-Fi uplink (to router/cloud) and BLE peripheral scanning (for door/window/motion sensors). Use Value: Single-chip solution eliminates separate Wi-Fi and BLE modules, reducing PCB area by >40% and eliminating inter-module RF interference tuning. |
Use Scenario: Battery-powered GPS tracker mounted on fleet vehicles or warehouse pallets, reporting location and status over Wi-Fi or BLE. IC Role / Device Role / Timing Role: Low-power connectivity SoC performing periodic BLE advertising (for nearby scanners) and scheduled Wi-Fi uploads (for high-bandwidth GPS logs). Use Value: Deep-sleep mode with RTC wake-up and hardware PTA arbitration extends battery life beyond 12 months on a single coin cell. |
| IP Security Camera | Healthcare Vital Monitor |
Use Scenario: Compact indoor/outdoor camera streaming video over 5 GHz Wi-Fi while accepting OTA firmware updates and supporting BLE provisioning. IC Role / Device Role / Timing Role: Wi-Fi 4 SoC handling real-time H.264 video streaming (5 GHz) and BLE 5.2 LE for secure out-of-band pairing and configuration. Use Value: Simultaneous 5 GHz Wi-Fi and BLE operation avoids channel conflicts, enabling zero-touch setup without disrupting live video transmission. |
Use Scenario: Wearable ECG or SpO₂ monitor transmitting clinical-grade sensor data to smartphone (BLE) and clinic server (Wi-Fi) with medical-grade security. IC Role / Device Role / Timing Role: Dual-radio IC executing AES-CCM encryption for both Wi-Fi (WPA3) and BLE (Secure Connections), meeting HIPAA-compliant data transport requirements. Use Value: On-chip AES engines offload encryption from host MCU, preserving CPU cycles for real-time signal processing and reducing overall system power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-band Wi-Fi 4 and Bluetooth combo applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESP32-WROVER-B (Espressif) | Wi-Fi 4 + Bluetooth 4.2 (not 5.2); no LE 2 Mbps, Long Range, or PAST; uses internal flash, lacks hardware PTA arbiter. | Lower-cost consumer IoT; unsuitable for industrial BLE mesh or long-range sensor networks requiring Bluetooth 5.2 features. | Select IW416UK/A1IZ when Bluetooth 5.2 certification, hardware coexistence, or industrial temperature operation is mandatory. |
| QCA9377-3 (Qualcomm) | Wi-Fi 5 (802.11ac) + Bluetooth 4.2; larger HVQFN68 package; no integrated RF switches or BLE 5.x features. | Higher-throughput Wi-Fi clients (laptops, STBs); lacks BLE 5.2 capabilities needed for modern IoT sensor ecosystems. | Choose IW416UK/A1IZ for compact WLCSP76 footprint, Bluetooth 5.2 feature set, and unified coexistence architecture in space- and power-constrained designs. |
Compared with ESP32-WROVER-B and QCA9377-3, the IW416UK/A1IZ delivers Bluetooth 5.2-specific capabilities (LE 2 Mbps, Long Range, PAST), hardware-enforced Wi-Fi/Bluetooth coexistence, and industrial-grade thermal reliability in a miniature WLCSP76 package-making it optimal for next-generation certified IoT endpoints where feature completeness and environmental robustness are non-negotiable.
Availability
IW416UK/A1IZ is available at Aetrix Electronics and suitable for industrial asset tracking, smart home gateways, and healthcare monitoring systems requiring stable component supply across extended product lifecycles.
Supply support for IW416UK/A1IZ 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 deep expertise in wireless SoCs and embedded security.
The IW416 series was designed specifically for cost-sensitive, space-constrained embedded devices requiring certified dual-band Wi-Fi 4 and Bluetooth 5.2 connectivity with industrial-grade reliability and integrated RF front-end simplification.
FAQ
What is the operating temperature range for the IW416UK/A1IZ?
The IW416UK/A1IZ is qualified for industrial operation from −40 °C to +85 °C. This rating is validated across all functional blocks-including Wi-Fi MAC/baseband, Bluetooth baseband, RF transceivers, and power management circuits-ensuring reliable performance in harsh environments such as factory automation controllers and outdoor surveillance equipment. The IW416UK/A1IZ maintains full compliance with IEEE 802.11n and Bluetooth 5.2 specifications across this entire range.
Does the IW416UK/A1IZ support simultaneous Wi-Fi and Bluetooth operation?
Yes, the IW416UK/A1IZ supports simultaneous operation in dual-antenna configuration (independent Wi-Fi and Bluetooth radios active concurrently) and in single-antenna configuration for 5 GHz Wi-Fi + Bluetooth. In 2.4 GHz band with single antenna, Wi-Fi and Bluetooth transmit/receive operations are arbitrated by the on-chip hardware packet traffic arbiter. The IW416UK/A1IZ implements this coexistence natively without host CPU intervention.
Which host interfaces does the IW416UK/A1IZ provide for Wi-Fi and Bluetooth connectivity?
The IW416UK/A1IZ provides SDIO 3.0 for Wi-Fi host communication and a high-speed UART (up to 3 Mbit/s) for Bluetooth. These interfaces are electrically and logically isolated, preventing bus contention. The IW416UK/A1IZ does not share pins between Wi-Fi and Bluetooth host functions-SDIO and UART operate independently with dedicated signal sets and voltage domains (VIO_SD and AVDD18).
What Bluetooth 5.2 features are implemented in the IW416UK/A1IZ?
The IW416UK/A1IZ implements Bluetooth 5.2 features including LE 2 Mbps data rate, LE Long Range (coded PHY), Periodic Advertising Sync Transfer (PAST), LE Advertising Extensions, and LE Secure Connections. It is Bluetooth SIG certified for version 5.2. The IW416UK/A1IZ also supports LE Data Length Extension and Intelligent Adaptive Frequency Hopping, all executed in hardware for deterministic latency and low power consumption.
Is the IW416UK/A1IZ pin-compatible with other IW416 variants like IW416HN/A1IK?
No, the IW416UK/A1IZ (WLCSP76) is not pin-compatible with IW416HN/A1IK (HVQFN68)-they use entirely different packages, bump/pin counts, and layout footprints. While both share identical electrical functionality and register-level compatibility, PCB redesign is required to migrate between WLCSP76 and HVQFN68 variants. The IW416UK/A1IZ requires microvia-based HDI routing due to its 0.35 mm pitch and 76-bump array.
IW416UK/A1IZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 76-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx Only
- RF Family/Standard:
- 802.15.4, Bluetooth, Cellular, WiFi
- Protocol:
- 802.11a/b/g/n, Bluetooth v5.1, Class 2, GPS, GSM, LTE, WCDMA
- Modulation:
- 4-DQPSK, 8-DPSK, 16-QAM, 64-QAM, BPSK, GFSK, OFDM, QPSK
- Frequency:
- 2.4GHz, 5GHz
- Data Rate (Max):
- 150Mbps
- Power - Output:
- 21dBm
- Sensitivity:
- -99dBm
- Memory Size:
- -
- Serial Interfaces:
- GPIO, I2C, I2S, PCM, SDIO, UART
- GPIO:
- -
- Voltage - Supply:
- 1.05V, 1.8V, 2.2V
- Current - Receiving:
- 5µA ~ 72mA
- Current - Transmitting:
- 240µA ~ 325mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 76-WLCSP (3.95x3.565)
IW416UK/A1IZ FAQ
1.How can I place an order for IW416UK/A1IZ through Aetrix?
Please submit a Request for Quotation (RFQ) for IW416UK/A1IZ 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 IW416UK/A1IZ reliable?
The price and inventory of IW416UK/A1IZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW416UK/A1IZ is usually 5 days.
3.What payment methods are accepted for IW416UK/A1IZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW416UK/A1IZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW416UK/A1IZ?
IW416UK/A1IZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW416UK/A1IZ 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 IW416UK/A1IZ?
For technical support, including IW416UK/A1IZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW416UK/A1IZ requirements.
6.How does Aetrix verify that IW416UK/A1IZ is sourced from the original manufacturer or authorized distributors?
All IW416UK/A1IZ 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 IW416UK/A1IZ meets industry standards.
7.What is the process for return or replacement of IW416UK/A1IZ?
All IW416UK/A1IZ units undergo pre-shipment inspection (PSI). If there is an issue with IW416UK/A1IZ, 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 IW416UK/A1IZ part is unused and in its original packaging.
Return procedure for IW416UK/A1IZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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