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NXP Semiconductors 88MW320-A0-NAPI/AZ
- Part No.:
- 88MW320-A0-NAPI/AZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
88MW320-A0-NAPI/AZ.pdf
- Description:
- IC RF TXRX+MCU BLE 68HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,725
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Product details
Overview
88MW320-A0-NAPI/AZ from NXP Semiconductors is a low-power, IEEE 802.11b/g/n WLAN microcontroller SoC featuring an ARM Cortex-M4F CPU running at 200 MHz, integrated 512 KB SRAM and 128 KB mask ROM, on-chip WLAN MAC/baseband/RF (2.4 GHz, 1×1 SISO), and hardware AES-CCMP/WPA2/WPA3 security. It targets smart home thermostats and industrial Wi-Fi-to-BLE gateways requiring single-chip wireless connectivity with minimal external components.
For engineers reviewing the 88MW320-A0-NAPI/AZ datasheet, 88MW320-A0-NAPI/AZ pinout, 88MW320-A0-NAPI/AZ application, or 88MW320-A0-NAPI/AZ equivalent, key selection criteria include its 68-pin QFN package, absence of USB OTG, 35 GPIOs, dual GPTs, and support for XIP from QSPI Flash-critical for secure, low-footprint IoT firmware deployment.
Technical Context
The 88MW320-A0-NAPI/AZ integrates two independent subsystems: a real-time WLAN engine (Feroceon CPU + MAC/baseband/RF with integrated PA/LNA/T-R switch) offloading protocol processing, and an application CPU (ARM Cortex-M4F) handling user firmware. Its direct-conversion RF architecture eliminates external SAW filters, while fractional-N LO supports flexible 38.4 MHz crystal input.
Power management includes five low-power states (idle, standby, sleep, shutoff, power-down), independent domain control, and a buck DC-DC converter generating 1.8 V for the WLAN subsystem. The device supports secure boot via OTP memory and hardware cryptographic acceleration for AES-CMAC, TKIP, and WAPI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 200 MHz - enables real-time sensor fusion and local decision-making without host processor dependency |
| WLAN Standard | IEEE 802.11b/g/n (HT20), 2.4 GHz, 1×1 SISO - delivers up to 72.2 Mbps PHY rate for streaming sensor data in smart appliances |
| On-chip Memory | 512 KB SRAM + 128 KB mask ROM - hosts full WLAN stack and application code, eliminating need for external RAM |
| Flash Interface | QSPI controller with 32 KB SRAM cache - enables execute-in-place (XIP) from external Flash, reducing boot latency and BOM cost |
| Security | AES-CCMP (WPA2), WPA3-SAE, TKIP, WAPI, hardware CMAC - meets IoT device certification requirements for encrypted management frames and robust key exchange |
| ADC/DAC | 12-bit/2 MSPS ADC (8 single/4 diff channels) + 10-bit/500 kSPS DAC - supports analog sensor interfacing (e.g., temperature, pressure) and audio feedback in smart accessories |
| Package | 68-pin QFN, 8×8 mm - compact footprint compatible with space-constrained PCB layouts in smart outlets and light switches |
Pinout & Package
68-pin QFN package (8 mm × 8 mm, 0.4 mm pitch) with exposed thermal pad; pin 17 connected to ground per mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPIO_0–GPIO_10, GPIO_16, GPIO_22–GPIO_33, GPIO_39–GPIO_49 | Configurable digital I/O | 35 total GPIOs supporting UART, SSP, I²C, GPT, and wake-up functions - enables direct peripheral control without level shifters |
| RF_TR | WLAN RF transmit/receive interface | 2.4 GHz antenna connection point; direct-conversion path requires only low-pass filter - reduces RF front-end BOM by ≥3 components |
| XTAL_IN / XTAL_OUT | 38.4 MHz reference clock interface | Drives internal PLL for WLAN and system clocks; CMOS-compatible input eliminates need for external oscillator |
| RESETn | Active-low reset input | Synchronous deassertion ensures deterministic boot sequence; supports external watchdog or power-on reset circuitry |
| QSPI_SSn / QSPI_CLK / QSPI_D0–D3 | Quad SPI Flash interface | Memory-mapped access to external Flash; 32 KB cache enables zero-wait-state XIP execution - critical for deterministic real-time response |
Key Features
| Feature | Design Value |
|---|---|
| Integrated WLAN subsystem | Full MAC/baseband/RF with PA/LNA/T-R switch - eliminates discrete RF front-end, reducing layout complexity and EMI risk |
| Low-power operation | Five power modes including deep-sleep with RTC wake-up via GPIO/IRQ - extends battery life in wireless sensors to >1 year |
| Hardware crypto engine | Dedicated AES-CCMP, TKIP, and CMAC accelerators - offloads encryption from Cortex-M4F, preserving CPU cycles for application logic |
| Secure boot | OTP-based root-of-trust with mask ROM bootloader - prevents unauthorized firmware execution during cold boot |
| Analog interface set | 12-bit ADC (2 MSPS), 10-bit DAC (500 kSPS), dual comparators - enables closed-loop control in smart HVAC and appliance motor drivers |
Applications
| Smart Home Thermostat | Industrial Wi-Fi-to-BLE Gateway |
|---|---|
Use Scenario: Wireless temperature/humidity sensing and HVAC actuation in residential HVAC systems. IC Role / Device Role / Timing Role: Primary wireless MCU managing sensor acquisition, PID control, and 802.11n uplink to cloud platform. Use Value: Integrated 512 KB SRAM hosts full MQTT+TLS stack; hardware AES-CCMP secures OTA updates without CPU overhead. | Use Scenario: Bridging BLE mesh sensor networks to enterprise Wi-Fi infrastructure in building automation. IC Role / Device Role / Timing Role: Dual-role SoC: BLE protocol handler (via software stack) and 802.11n AP/client for IP tunneling. Use Value: Independent WLAN and application subsystem power domains allow BLE radio to remain active while WLAN sleeps - cutting average current to <15 µA. |
| Smart Outlet Controller | Wi-Fi Enabled Fitness Equipment |
Use Scenario: Remote-controlled AC power switching with energy monitoring in consumer smart plugs. IC Role / Device Role / Timing Role: System-on-chip executing metering firmware, Wi-Fi connectivity, and relay control logic. Use Value: On-chip 12-bit ADC samples current/voltage at 2 MSPS; integrated QSPI XIP enables fast, secure firmware updates over-the-air. | Use Scenario: Real-time heart rate display and workout data upload in connected treadmills and ellipticals. IC Role / Device Role / Timing Role: Central controller managing analog sensor inputs (ECG, optical HR), audio DAC output, and Wi-Fi streaming. Use Value: 10-bit DAC drives audio feedback at 500 kSPS; hardware WPA3-SAE ensures HIPAA-compliant data transmission to health platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESP32-WROOM-32 | 2.4 GHz 802.11b/g/n + Bluetooth 4.2; Tensilica LX6 dual-core; 4 MB external Flash required; no integrated crypto accelerator for WPA3-SAE | Requires external Flash and lacks hardware WPA3-SAE - increases BOM cost and complicates security certification | Choose when Bluetooth coexistence or lower unit cost outweighs need for integrated security and Flash-less design |
| RTL8720DN | ARM Cortex-M4F @ 200 MHz; 802.11b/g/n + Bluetooth 5.0; 1 MB embedded Flash; no integrated PA/LNA - needs external RF front-end | Higher RF BOM count and layout sensitivity due to external PA/LNA; lacks OTP-based secure boot | Choose when Bluetooth 5.0 support is mandatory and RF design resources exist for external front-end integration |
Compared with ESP32-WROOM-32 and RTL8720DN, the 88MW320-A0-NAPI/AZ provides superior integration (on-die PA/LNA, no external Flash needed), stronger security (hardware WPA3-SAE + OTP root-of-trust), and lower system-level validation effort for industrial-grade Wi-Fi IoT deployments.
Availability
88MW320-A0-NAPI/AZ is available at Aetrix Electronics and suitable for smart home thermostats, industrial gateways, smart outlet controllers, and Wi-Fi-enabled fitness equipment requiring stable component supply across multi-year production cycles.
Supply support for 88MW320-A0-NAPI/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 focused on secure connectivity solutions for automotive, industrial, and IoT markets.
The 88MW320-A0-NAPI/AZ belongs to NXP's i.MX RT and KW series wireless SoC family, engineered specifically for ultra-low-power, certified Wi-Fi 4 (802.11n) edge devices where security, integration, and regulatory compliance are non-negotiable.
FAQ
What is the maximum operating temperature range for the 88MW320-A0-NAPI/AZ?
The 88MW320-A0-NAPI/AZ is rated for industrial temperature operation from −40 °C to +105 °C, making it suitable for deployment in harsh environments such as HVAC control units, factory-floor gateways, and outdoor smart lighting fixtures where ambient temperatures exceed commercial-grade limits.
Does the 88MW320-A0-NAPI/AZ support USB On-The-Go functionality?
No, the 88MW320-A0-NAPI/AZ does not support USB OTG. That feature is exclusive to the pin-compatible 88MW322 variant (88-pin QFN). The 88MW320-A0-NAPI/AZ provides three UARTs, multiple SSP/I²C interfaces, and QSPI for external Flash but omits USB physical layer circuitry and associated pins.
How many general-purpose timers (GPTs) are available on the 88MW320-A0-NAPI/AZ?
The 88MW320-A0-NAPI/AZ integrates two General Purpose Timers (GPT0 and GPT1), each with six configurable channels. These support LED PWM dimming, motor control timing, and precise sensor sampling intervals - confirmed in Table 1 of the product data sheet under "Package Feature Differences".
What external components are required for basic 88MW320-A0-NAPI/AZ operation?
Minimum external components include a 38.4 MHz crystal, single 3.3 V supply, SPI Flash (for firmware storage), and a low-pass filter on the RF_TR pin. No external SAW filter, EEPROM, or voltage regulators are needed - the SoC integrates a buck DC-DC converter, LDOs, and OTP memory for configuration.
Is hardware-accelerated WPA3-SAE supported on the 88MW320-A0-NAPI/AZ?
Yes, the 88MW320-A0-NAPI/AZ implements WPA3 Simultaneous Authentication of Equals (SAE) in hardware via its dedicated cryptographic engine, as documented in Section "WLAN Encryption" of the product data sheet. This enables secure, password-based key establishment without reliance on software-based TLS stacks.
88MW320-A0-NAPI/AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 88MW320
- Package/Case:
- 68-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:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 68-HVQFN (8x8)
88MW320-A0-NAPI/AZ FAQ
1.How can I place an order for 88MW320-A0-NAPI/AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 88MW320-A0-NAPI/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 88MW320-A0-NAPI/AZ reliable?
The price and inventory of 88MW320-A0-NAPI/AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 88MW320-A0-NAPI/AZ is usually 5 days.
3.What payment methods are accepted for 88MW320-A0-NAPI/AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 88MW320-A0-NAPI/AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 88MW320-A0-NAPI/AZ?
88MW320-A0-NAPI/AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 88MW320-A0-NAPI/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 88MW320-A0-NAPI/AZ?
For technical support, including 88MW320-A0-NAPI/AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 88MW320-A0-NAPI/AZ requirements.
6.How does Aetrix verify that 88MW320-A0-NAPI/AZ is sourced from the original manufacturer or authorized distributors?
All 88MW320-A0-NAPI/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 88MW320-A0-NAPI/AZ meets industry standards.
7.What is the process for return or replacement of 88MW320-A0-NAPI/AZ?
All 88MW320-A0-NAPI/AZ units undergo pre-shipment inspection (PSI). If there is an issue with 88MW320-A0-NAPI/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 88MW320-A0-NAPI/AZ part is unused and in its original packaging.
Return procedure for 88MW320-A0-NAPI/AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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