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NXP Semiconductors 88MW322-A0-NXUC/AZ
- Part No.:
- 88MW322-A0-NXUC/AZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 88-VFQFN Exposed Pad
- Datasheet:
-
88MW322-A0-NXUC/AZ.pdf
- Description:
- IC RF TXRX+MCU BLE 88HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,517
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Product details
Overview
88MW322-A0-NXUC/AZ from NXP Semiconductors is a dual-subsystem wireless microcontroller SoC integrating an ARM Cortex-M4F CPU (200 MHz) and a full IEEE 802.11b/g/n WLAN subsystem (2.4 GHz, 1×1 SISO) with integrated PA/LNA/switch, 50 GPIOs, USB 2.0 OTG, and hardware cryptographic acceleration. It enables Wi-Fi–enabled smart home thermostats, industrial gateways, and medical glucose meters requiring low-power operation and secure over-the-air updates.
For engineers reviewing the 88MW322-A0-NXUC/AZ datasheet, 88MW322-A0-NXUC/AZ pinout, 88MW322-A0-NXUC/AZ application, or 88MW322-A0-NXUC/AZ equivalent, key selection criteria include its 88-pin QFN package, independent WLAN/application power domains, XIP-capable QSPI Flash controller with 32 KB SRAM cache, and support for WPA3-SAE and AES-CMAC security protocols.
Technical Context
The 88MW322-A0-NXUC/AZ implements a tightly coupled dual-domain architecture: the WLAN subsystem uses a Feroceon CPU with dedicated MAC/baseband/RF blocks and operates on a separate 1.8 V rail supplied by an internal buck DC-DC converter, while the application domain runs NXP's WLAN firmware and user applications on the Cortex-M4F core with 512 KB SRAM and 128 KB ROM.
Its RF front end employs direct-conversion architecture with integrated T/R switch, programmable gain LNA, and high-efficiency PA supporting 10 dB low-power mode; baseband processing includes hardware-accelerated AES-CCMP, TKIP, CMAC, and WAPI, with full 802.11k/r/w/h/e/d compliance for enterprise-grade roaming, QoS, and protected management frames.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 200 MHz - delivers real-time application processing with FPU for sensor fusion and control loops |
| WLAN Standard | IEEE 802.11b/g/n (HT20), 2.4 GHz, 1×1 SISO - supports up to 72.2 Mbps PHY rate and Wi-Fi Direct connectivity |
| Memory | 512 KB SRAM + 128 KB mask ROM + QSPI interface - enables XIP execution and secure boot without external RAM |
| Security | AES-CCMP, TKIP, WPA3-SAE, AES-CMAC, WAPI - hardware-accelerated encryption meets 802.11i/w standards for robust client authentication |
| USB Interface | USB 2.0 OTG (high-speed) - enables host/device role switching for firmware updates via USB mass storage or audio/video streaming |
| Power Management | Multiple low-power states (sleep, standby, shutoff), independent WLAN/app domain control, and 2 wake-up pins - achieves sub-μA retention current in deep sleep |
| Analog Peripherals | 12-bit/2 MSps ADC (8 single/4 diff channels), 10-bit/500 kSps DAC, 2 analog comparators - supports battery monitoring, temperature sensing, and voice-quality signal acquisition |
Pinout & Package
88MW322-A0-NXUC/AZ is housed in an 88-pin QFN package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are highly muxed across GPIOs, with dedicated pins for RF_TR, USB_DP/DM/ID/VBUS, XTAL_IN/OUT, RESETn, and WAKE_UP0/1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF_TR | WLAN RF Transmit/Receive I/O | 2.4 GHz antenna interface with integrated T/R switch - requires external low-pass filter only |
| USB_DP / USB_DM | USB 2.0 Differential Data Pair | High-speed (480 Mbps) bidirectional signaling with integrated transceivers - supports OTG role negotiation via USB_ID |
| USB_ID | OTG Role Detection Input | Determines host/device mode at boot - pulled high for device, grounded for host |
| USB_VBUS | VBUS Sensing Input | Monitors 5 V presence in device mode; unused in host mode - enables safe peripheral enumeration |
| USB_DRV_VBUS | VBUS Drive Control Output | GPIO-driven signal to enable external VBUS power switch - avoids need for discrete load switch IC |
| XTAL_IN / XTAL_OUT | 38.4 MHz Crystal Oscillator Interface | Drives main WLAN/baseband clock; supports CMOS or low-swing sine wave input - eliminates need for external oscillator |
| WAKE_UP0 / WAKE_UP1 | Dedicated Low-Power Wake Sources | Asynchronous inputs that exit deep-sleep mode in <10 μs - used for motion-triggered sensor wake or scheduled RTC events |
Key Features
| Feature | Design Value |
|---|---|
| Integrated WLAN + Application Subsystem | Eliminates need for separate Wi-Fi module and host MCU - reduces BOM count and PCB area by >40% vs discrete solutions |
| Hardware Cryptographic Engine | Offloads AES-CCMP, TKIP, CMAC, and WAPI processing from Cortex-M4F - preserves CPU cycles for application logic and maintains <100 ms OTA update latency |
| QSPI Flash Controller with 32 KB SRAM Cache | Enables Execute-In-Place (XIP) from external Flash - removes requirement for boot ROM copy-to-RAM, cutting boot time by ~35% |
| Independent Power Domains | Allows WLAN subsystem to remain active while application CPU sleeps - supports always-on beacon listening with <200 μA current draw |
| USB OTG 2.0 High-Speed Interface | Supports both host and device roles without external PHY - enables field firmware updates via USB stick and USB audio output to external codecs |
Applications
| Smart Home Thermostat | Industrial Wi-Fi Gateway |
|---|---|
Use Scenario: Wireless HVAC controller with local display, temperature/humidity sensing, and cloud connectivity. IC Role / Device Role / Timing Role: Primary system-on-chip handling sensor acquisition, UI rendering, Wi-Fi stack, and secure TLS communication. Use Value: Integrated 12-bit ADC, RTC, and WPA3-SAE eliminate external components; 50 GPIOs support direct LCD and button interfacing. |
Use Scenario: Protocol bridge converting Bluetooth Mesh or Zigbee sensor data to Wi-Fi/IP for cloud ingestion. IC Role / Device Role / Timing Role: Dual-domain processor running BLE/Zigbee stack on WLAN subsystem and IP forwarding on Cortex-M4F. Use Value: Independent power domains allow BLE radio to stay awake while Wi-Fi sleeps between beacon intervals - extends battery life in edge nodes. |
| Medical Glucometer | Smart Appliance Remote Control |
Use Scenario: FDA-class II portable blood glucose monitor with wireless results upload and encrypted patient data storage. IC Role / Device Role / Timing Role: Secure application processor executing FDA-compliant algorithms and certified TLS/WPA3 stack. Use Value: Hardware AES-CMAC and secure boot ensure data integrity; integrated DAC drives analog test strip bias voltage with 10-bit precision. |
Use Scenario: Voice-enabled universal remote with Wi-Fi connectivity for controlling smart TVs, soundbars, and lighting systems. IC Role / Device Role / Timing Role: Real-time audio frontend (I2S/ADC/DAC) and Wi-Fi network manager in a compact form factor. Use Value: USB OTG enables firmware updates via PC; 3x I2S interfaces support multi-mic array and stereo audio playback without codec IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESP32-WROVER-B | Lacks integrated 802.11n baseband/RF; uses external ESP32 SoC + external flash; no hardware WPA3-SAE or AES-CMAC acceleration | Suitable for cost-sensitive consumer IoT but not medical/industrial deployments requiring FIPS-aligned crypto or deterministic WLAN timing | Choose when BOM cost is primary constraint and regulatory certification burden must be minimized via pre-certified module |
| RTL8720DN | ARM Cortex-M23 core (no FPU); 256 KB SRAM; no USB OTG; supports only WPA2 (no WPA3-SAE or CMAC) | Targeted at basic Wi-Fi sensors; insufficient memory and crypto for concurrent OTA + secure TLS + local UI rendering | Choose only for simple telemetry endpoints where USB provisioning and advanced security are unnecessary |
Compared with ESP32-WROVER-B and RTL8720DN, the 88MW322-A0-NXUC/AZ provides higher deterministic WLAN performance via integrated baseband, hardware-accelerated WPA3-SAE, and USB OTG for reliable field updates - critical for certified medical and industrial edge devices.
Availability
88MW322-A0-NXUC/AZ is available at Aetrix Electronics and suitable for smart home thermostats, industrial gateways, and medical glucometers requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized NXP distribution channels.
Supply support for 88MW322-A0-NXUC/AZ 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The 88MW322-A0-NXUC/AZ belongs to NXP's i.MX RT crossover MCU family extension for Wi-Fi–enabled edge devices, designed specifically to replace discrete MCU + Wi-Fi module architectures in certified, low-power, security-critical applications.
FAQ
What is the operating temperature range for the 88MW322-A0-NXUC/AZ?
The 88MW322-A0-NXUC/AZ is qualified for industrial operation from –40 °C to +105 °C ambient, with storage range extending to –55 °C to +125 °C. This rating enables deployment in harsh environments such as factory automation controllers, outdoor smart meters, and under-hood automotive gateway modules where thermal stability is critical for sustained WLAN link reliability and SRAM data retention.
Does the 88MW322-A0-NXUC/AZ support Wi-Fi Direct and 802.11r fast handoff?
Yes, the 88MW322-A0-NXUC/AZ fully supports Wi-Fi Direct for peer-to-peer connections and 802.11r fast basic service set transition (FT) for seamless roaming between access points. These capabilities are implemented in the integrated WLAN subsystem firmware and require no host CPU intervention - enabling uninterrupted video streaming or VoIP during AP handover in enterprise or campus deployments.
How many general-purpose timers does the 88MW322-A0-NXUC/AZ provide, and what are their key features?
The 88MW322-A0-NXUC/AZ integrates four General Purpose Timers (GPT0–GPT3), each with six configurable channels and LED PWM support. GPTs operate independently across power domains, support capture/compare modes, and can be clocked from internal sources or external GPIOs - enabling precise motor control, IR remote decoding, and synchronized sensor sampling without CPU polling.
Can the 88MW322-A0-NXUC/AZ execute code directly from external QSPI Flash?
Yes, the 88MW322-A0-NXUC/AZ includes a dedicated QSPI Flash controller with 32 KB SRAM cache that enables Execute-In-Place (XIP) operation. This allows firmware images stored in external Flash to run directly without copying to internal SRAM, reducing boot latency by ~35% and preserving 512 KB of on-chip SRAM for application data buffers and real-time processing tasks.
What security features are implemented in hardware on the 88MW322-A0-NXUC/AZ?
The 88MW322-A0-NXUC/AZ implements AES-CCMP, TKIP, WAPI, AES-CMAC, and WPA3-SAE in dedicated hardware accelerators within the WLAN subsystem. It also includes a Secure Boot ROM, One-Time Programmable (OTP) memory for key storage, and hardware-based brown-out detection - collectively meeting requirements for IEC 62443-3-3 and UL 2900-1 certification in medical and industrial applications.
88MW322-A0-NXUC/AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 88-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth, WiFi
- Protocol:
- 802.11n/g/b, Bluetooth
- Modulation:
- DSSS, OFDM
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 72.2Mbps
- Power - Output:
- 26dBm
- Sensitivity:
- -96.5dBm
- Memory Size:
- 512kB RAM, 128kB ROM
- Serial Interfaces:
- GPIO, I2C, I2S, PCM, SDIO, UART
- GPIO:
- 50
- Voltage - Supply:
- 4.4V ~ 5.25V
- Current - Receiving:
- 29.3mA ~ 45.2mA
- Current - Transmitting:
- 27.6mA ~ 183.3mA
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 88-HVQFN (10x10)
88MW322-A0-NXUC/AZ FAQ
1.How can I place an order for 88MW322-A0-NXUC/AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 88MW322-A0-NXUC/AZ 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 88MW322-A0-NXUC/AZ reliable?
The price and inventory of 88MW322-A0-NXUC/AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 88MW322-A0-NXUC/AZ is usually 5 days.
3.What payment methods are accepted for 88MW322-A0-NXUC/AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 88MW322-A0-NXUC/AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 88MW322-A0-NXUC/AZ?
88MW322-A0-NXUC/AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 88MW322-A0-NXUC/AZ 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 88MW322-A0-NXUC/AZ?
For technical support, including 88MW322-A0-NXUC/AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 88MW322-A0-NXUC/AZ requirements.
6.How does Aetrix verify that 88MW322-A0-NXUC/AZ is sourced from the original manufacturer or authorized distributors?
All 88MW322-A0-NXUC/AZ 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 88MW322-A0-NXUC/AZ meets industry standards.
7.What is the process for return or replacement of 88MW322-A0-NXUC/AZ?
All 88MW322-A0-NXUC/AZ units undergo pre-shipment inspection (PSI). If there is an issue with 88MW322-A0-NXUC/AZ, 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 88MW322-A0-NXUC/AZ part is unused and in its original packaging.
Return procedure for 88MW322-A0-NXUC/AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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