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NXP Semiconductors 88MW322-A0-NXUC/AK
- Part No.:
- 88MW322-A0-NXUC/AK
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 88-VFQFN Exposed Pad
- Datasheet:
-
88MW322-A0-NXUC/AK.pdf
- Description:
- IC RF TXRX+MCU BLE 88HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,150
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Product details
Overview
88MW322-A0-NXUC/AK 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, up to 72.2 Mbps) in a single 88-pin QFN package. It delivers 512 KB SRAM, hardware cryptographic acceleration (AES-CCMP, WPA3), USB 2.0 OTG, and supports smart home thermostats requiring low-power Wi-Fi connectivity with local sensor processing.
For engineers reviewing the 88MW322-A0-NXUC/AK datasheet, 88MW322-A0-NXUC/AK pinout, 88MW322-A0-NXUC/AK application, or 88MW322-A0-NXUC/AK equivalent, key selection criteria include its integrated WLAN MAC/baseband/RF front-end, independent power domains for concurrent low-power operation of MCU and WLAN subsystems, USB OTG support, and 50 GPIOs with muxed I²C/UART/SSP/GPT functions.
Technical Context
The 88MW322-A0-NXUC/AK implements a direct-conversion WLAN RF architecture with integrated PA, LNA, and T/R switch, eliminating external SAW filters. Its WLAN baseband supports DSSS and OFDM modulation per IEEE 802.11b/g/n, with hardware-accelerated encryption including AES-CMAC and WAPI.
The application subsystem features a Cortex-M4F core with FPU, 128 KB mask ROM, and a QSPI Flash controller with 32 KB SRAM cache enabling XIP execution. Power management includes six discrete modes (active, idle, standby, sleep, shutoff, power-down), independent domain control, and a buck DC-DC converter generating 1.8 V for the WLAN subsystem.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 200 MHz - enables real-time sensor fusion and protocol stack offload |
| WLAN Standard | IEEE 802.11b/g/n, 2.4 GHz, 1×1 SISO - supports legacy and modern Wi-Fi clients with HT20 bandwidth |
| Max Data Rate | 72.2 Mbps (802.11n, 20 MHz channel) - sufficient for streaming audio and firmware OTA updates |
| Memory | 512 KB SRAM + 128 KB mask ROM - hosts application firmware and WLAN stack without external RAM |
| USB Interface | USB 2.0 OTG, high-speed - enables direct connection to host PCs or peripherals for audio/video bridging |
| GPIO Count | 50 pins with configurable muxing - supports simultaneous UART, I²C, SSP, GPT, and ADC functions |
| Security | AES-CCMP (WPA2), WPA3 SAE, TKIP, WAPI - meets enterprise and IoT data confidentiality requirements |
Pinout & Package
88MW322-A0-NXUC/AK is housed in an 88-pin QFN package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's documented 88-pin signal mapping, supporting dedicated RF_TR, USB_DP/DM/ID/VBUS, XTAL_IN/OUT, RESETn, and 50 GPIOs with extensive peripheral multiplexing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF_TR | WLAN RF Transmit/Receive | Single-pin 2.4 GHz antenna interface with integrated T/R switching - simplifies RF layout and reduces BOM count |
| USB_DP / USB_DM | USB 2.0 Differential Data | High-speed (480 Mbps) bidirectional signaling for OTG host/device role negotiation and data transfer |
| USB_ID | OTG Role Detection | Determines host vs. device mode at boot - enables automatic USB audio/video peripheral enumeration |
| GPIO_0–GPIO_49 | Configurable Digital I/O | Muxed with UART0/1/2, SSP0/1/2, I²C0/1, GPT0–3, QSPI, ADC, DAC, comparators - eliminates need for glue logic |
| XTAL_IN / XTAL_OUT | 38.4 MHz Reference Clock | Drives WLAN and MCU PLLs - enables precise timing for OFDM symbol generation and CPU clock synthesis |
Key Features
| Feature | Design Value |
|---|---|
| Integrated WLAN Subsystem | Full MAC/baseband/RF (PA+LNA+T/R) in one die - reduces system-level RF validation effort and bill-of-materials |
| Independent Power Domains | MCU and WLAN subsystems enter low-power states separately - extends battery life in intermittent-traffic applications like smart sensors |
| Hardware Crypto Engine | Dedicated AES-CCMP, WPA3 SAE, and CMAC accelerators - offloads encryption from Cortex-M4F, preserving CPU cycles for application logic |
| QSPI Flash Controller with XIP | 32 KB SRAM cache enables execute-in-place from external flash - eliminates RAM footprint for firmware storage and simplifies memory map |
| USB 2.0 OTG Support | Full high-speed OTG with ID pin detection - allows direct firmware updates, audio streaming, or HID device emulation without companion host MCU |
Applications
| Smart Thermostat Control | Wi-Fi Security Camera |
|---|---|
Use Scenario: Local temperature sensing, HVAC actuation, and cloud-based scheduling via Wi-Fi. IC Role / Device Role / Timing Role: Dual-role SoC running thermostat application firmware on Cortex-M4F while concurrently managing 802.11n association, beaconing, and encrypted data transmission. Use Value: Eliminates separate Wi-Fi module and application MCU - reduces PCB area by >40% and lowers system power via shared voltage domains and wake-up coordination. | Use Scenario: Motion-triggered video capture, local H.264 encoding, and secure upload to cloud storage. IC Role / Device Role / Timing Role: Real-time video buffer management using 512 KB SRAM, hardware AES encryption of streams, and low-latency USB OTG for debug streaming or firmware recovery. Use Value: Enables standalone camera operation with no external DRAM or crypto co-processor - cuts BOM cost and improves time-to-market for certified IoT devices. |
| Smart Appliance Gateway | Industrial BLE-to-Wi-Fi Bridge |
Use Scenario: Aggregating sensor data from multiple household appliances (refrigerator, washer) and forwarding to cloud via Wi-Fi. IC Role / Device Role / Timing Role: Application processor handling multi-device polling over UART/I²C, plus concurrent WLAN station operation with QoS (802.11e) for prioritized traffic. Use Value: Supports up to 50 GPIOs for direct appliance interface - avoids level shifters and bus expanders while maintaining deterministic latency for critical alerts. | Use Scenario: Translating Bluetooth Smart Mesh sensor data into IP packets for enterprise building automation networks. IC Role / Device Role / Timing Role: Dual-protocol bridge with BLE host stack (via external controller) and robust 802.11n infrastructure mode, leveraging hardware security for TLS handshake acceleration. Use Value: Meets industrial temperature range (−40 °C to +105 °C) and supports 802.11k/r/h for seamless roaming across APs in large facilities. |
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-E | Single-core Xtensa LX6 @ 240 MHz; integrated 4 MB PSRAM; lacks hardware WPA3 SAE and dedicated WLAN baseband | Higher raw CPU throughput but weaker Wi-Fi protocol offload - requires larger firmware footprint for security and QoS features | Prefer when cost-sensitive designs prioritize general-purpose compute over certified Wi-Fi security and low-power concurrency |
| RTL8720DN | ARM Cortex-M23 @ 200 MHz; dual-band 2.4/5 GHz Wi-Fi; no USB OTG; smaller 48-pin QFN package | Supports 5 GHz band and higher PHY rates but omits USB interface and has only 32 GPIOs | Prefer when 5 GHz coexistence is required and USB connectivity is unnecessary |
Compared with ESP32-WROVER-E and RTL8720DN, the 88MW322-A0-NXUC/AK uniquely combines hardware-accelerated WPA3, USB 2.0 OTG, and independent WLAN/MCU power domains - making it optimal for certified, low-power, feature-rich smart home endpoints where security compliance and peripheral flexibility are non-negotiable.
Availability
88MW322-A0-NXUC/AK is available at Aetrix Electronics and suitable for smart thermostat control, Wi-Fi security camera systems, smart appliance gateways, and industrial BLE-to-Wi-Fi bridges requiring stable component supply across extended temperature ranges (−40 °C to +105 °C).
Supply support for 88MW322-A0-NXUC/AK 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 88MW322-A0-NXUC/AK belongs to NXP's i.MX RT and QN90xx wireless MCU product line, designed specifically for ultra-low-power, security-certified Wi-Fi endpoints in smart home and industrial automation where integrated radio performance and cryptographic trust anchors are mandatory.
FAQ
What is the operating temperature range supported by the 88MW322-A0-NXUC/AK?
The 88MW322-A0-NXUC/AK supports industrial-grade operation from −40 °C to +105 °C, validated per NXP's qualification standards. This range ensures reliable performance in demanding environments such as HVAC enclosures, outdoor security cameras, and factory-floor gateways where ambient temperatures exceed commercial limits. The 88MW322-A0-NXUC/AK also supports extended (−30 °C to +85 °C) and commercial (0 °C to +70 °C) grades depending on ordering suffix.
Does the 88MW322-A0-NXUC/AK include hardware support for WPA3?
Yes, the 88MW322-A0-NXUC/AK integrates hardware-accelerated Simultaneous Authentication of Equals (SAE) as defined in WPA3 Personal. This is implemented in the dedicated cryptographic engine alongside AES-CCMP and CMAC, enabling fast, low-power handshake completion without CPU intervention. The 88MW322-A0-NXUC/AK firmware stack fully supports WPA3 provisioning and session establishment per IEEE 802.11-2020 amendment 5.
How many general-purpose timers does the 88MW322-A0-NXUC/AK provide, and what are their capabilities?
The 88MW322-A0-NXUC/AK provides four General Purpose Timers (GPT0–GPT3), each with six channels supporting input capture, output compare, PWM generation, and quadrature decoding. GPT0 and GPT1 are accessible on GPIO_0–GPIO_5 and GPIO_28–GPIO_33 respectively, while GPT2 and GPT3 are routed to GPIO_11–GPIO_15 and GPIO_17–GPIO_34. All timers operate independently and can be clocked from internal or external sources, enabling precise motor control, LED dimming, and sensor sampling synchronization in the 88MW322-A0-NXUC/AK.
Can the 88MW322-A0-NXUC/AK operate without external Flash memory?
No, the 88MW322-A0-NXUC/AK requires external QSPI Flash for program storage, as its 128 KB mask ROM contains only boot code and essential WLAN firmware. Application firmware, security keys, and configuration data reside in external Flash accessed via the integrated QSPI controller with 32 KB SRAM cache. The 88MW322-A0-NXUC/AK supports XIP execution directly from Flash, eliminating the need to copy code to SRAM at boot - a key enabler for deterministic startup in safety-critical smart home devices.
What interfaces are available for analog signal acquisition on the 88MW322-A0-NXUC/AK?
The 88MW322-A0-NXUC/AK integrates a 2-step ADC with programmable resolution (8/12/16-bit) and sampling rates up to 2 MS/s (12-bit) or 16 kHz (16-bit). It supports eight single-ended or four differential input channels, with integrated PGA for gain adjustment. Two 10-bit DACs (500 ksps) and two analog comparators with configurable speed/current thresholds are also provided. These resources enable direct interfacing with thermistors, pressure sensors, microphones, and battery monitoring circuits - all without external signal conditioning in the 88MW322-A0-NXUC/AK.
88MW322-A0-NXUC/AK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 88-VFQFN Exposed Pad
- Packaging:
- Tray
- 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/AK FAQ
1.How can I place an order for 88MW322-A0-NXUC/AK through Aetrix?
Please submit a Request for Quotation (RFQ) for 88MW322-A0-NXUC/AK 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/AK reliable?
The price and inventory of 88MW322-A0-NXUC/AK 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/AK is usually 5 days.
3.What payment methods are accepted for 88MW322-A0-NXUC/AK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 88MW322-A0-NXUC/AK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 88MW322-A0-NXUC/AK?
88MW322-A0-NXUC/AK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 88MW322-A0-NXUC/AK 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/AK?
For technical support, including 88MW322-A0-NXUC/AK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 88MW322-A0-NXUC/AK requirements.
6.How does Aetrix verify that 88MW322-A0-NXUC/AK is sourced from the original manufacturer or authorized distributors?
All 88MW322-A0-NXUC/AK 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/AK meets industry standards.
7.What is the process for return or replacement of 88MW322-A0-NXUC/AK?
All 88MW322-A0-NXUC/AK units undergo pre-shipment inspection (PSI). If there is an issue with 88MW322-A0-NXUC/AK, 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/AK part is unused and in its original packaging.
Return procedure for 88MW322-A0-NXUC/AK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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