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NXP Semiconductors 88MW320-A0-NAPC/AK
- Part No.:
- 88MW320-A0-NAPC/AK
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
88MW320-A0-NAPC/AK.pdf
- Description:
- IC RF TXRX+MCU BLE 68HVQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
88MW320-A0-NAPC/AK from NXP Semiconductors is a low-power, IEEE 802.11b/g/n WLAN microcontroller SoC featuring an ARM Cortex-M4F CPU (200 MHz), integrated 512 KB SRAM, 128 KB mask ROM, and full-featured WLAN subsystem with integrated PA/LNA/T-R switch operating in 2.4 GHz band. It supports QSPI Flash XIP via 32 KB SRAM cache and delivers up to 72.2 Mbps data rate in HT20 mode - deployed in smart home thermostats, industrial gateways, and Wi-Fi-enabled appliances.
For engineers reviewing the 88MW320-A0-NAPC/AK datasheet, 88MW320-A0-NAPC/AK pinout, 88MW320-A0-NAPC/AK application, or 88MW320-A0-NAPC/AK equivalent, key selection considerations include its 68-pin QFN (8×8 mm) package, absence of USB OTG, 35 GPIOs, dual UART/SSP/I²C interfaces, hardware AES-CCMP/WPA3 security engine, and independent WLAN/microcontroller power domains enabling fine-grained low-power operation.
Technical Context
The 88MW320-A0-NAPC/AK integrates a dedicated Feroceon-based WLAN MAC/baseband/RX-TX RF chain with direct-conversion architecture and on-chip AGC, alongside an ARM Cortex-M4F application processor running at 200 MHz with MPU and FPU. Its WLAN subsystem handles real-time protocol processing offloading, while the microcontroller subsystem manages application logic and peripheral control.
Power management includes five distinct low-power states (idle, standby, sleep, shutoff, power-down), independent domain shutdown, brown-out detection, and an integrated buck DC-DC converter generating 1.8 V for the WLAN subsystem. The device uses a 38.4 MHz crystal for main clock and optional 32.768 kHz crystal for RTC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wireless Standard | IEEE 802.11b/g/n, 2.4 GHz SISO, HT20, max 72.2 Mbps - enables Wi-Fi client connectivity without external radio IC |
| CPU Core | ARM Cortex-M4F @ 200 MHz with FPU and MPU - supports real-time sensor fusion and secure firmware execution |
| On-chip Memory | 512 KB SRAM + 128 KB mask ROM - eliminates need for external RAM in many embedded applications |
| Flash Interface | QSPI controller with 32 KB SRAM cache supporting XIP - reduces boot time and simplifies firmware update architecture |
| Security Engine | Hardware AES-CCMP (WPA2), WPA3 (SAE), TKIP, CMAC, WAPI - meets IoT device authentication and data confidentiality requirements |
| Package | 68-pin QFN, 8×8 mm, 0.4 mm pitch - compact footprint compatible with high-density PCB layouts |
| GPIO Count | 35 configurable GPIOs with muxed peripherals - supports mixed-signal I/O without external level shifters or glue logic |
Pinout & Package
68-pin QFN package, 8×8 mm body, 0.4 mm pitch, exposed thermal pad (5.49×5.49 mm). Pin 17 is ground-connected per mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF_TR | WLAN RF Transmit/Receive | Single-pin 2.4 GHz antenna interface with integrated T/R switch - requires only external low-pass filter |
| XTAL_IN / XTAL_OUT | Main Clock Reference | 38.4 MHz crystal connection for WLAN and MCU timing - enables precise frequency stability without external oscillator |
| RESETn | Active-Low Reset Input | Asynchronous reset signal with internal pull-up - ensures deterministic startup after power-on or brown-out |
| 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, ADC/DAC triggers - enables flexible peripheral mapping without redesign |
| VDDIO_0–VDDIO_3, AVDD18, AVDD33, LDO11_VOUT, BUCK18_VBAT_IN | Power Supply Inputs | Dedicated I/O voltage domains (1.1 V, 1.8 V, 3.3 V) - allows interfacing with mixed-voltage sensors and actuators |
Key Features
| Feature | Design Value |
|---|---|
| Integrated WLAN + MCU SoC | Eliminates separate Wi-Fi module and host MCU - reduces BOM count, PCB area, and system power by >30% vs discrete solutions |
| Hardware Cryptographic Acceleration | AES-CCMP, WPA3 SAE, and CMAC implemented in silicon - achieves <10 µs encryption latency and zero CPU overhead for TLS handshake |
| Multi-Domain Power Management | Independent WLAN and MCU power domains with fast wake-up (<100 µs) - enables concurrent low-power sensing and periodic Wi-Fi beaconing |
| QSPI Flash XIP Support | 32 KB SRAM cache enables direct code execution from external Flash - removes need for boot ROM copy and simplifies OTA update flow |
| ADC/DAC with Programmable Resolution | 12-bit/2 MSPS or 16-bit/16 kSPS ADC + 10-bit/500 kSPS DAC - supports both fast motor control feedback and high-fidelity audio sampling |
Applications
| Smart Home Thermostat | Industrial Wi-Fi Gateway |
|---|---|
Use Scenario: Wireless temperature/humidity sensing with cloud reporting and local display control in residential HVAC systems. IC Role / Device Role / Timing Role: Primary application processor and Wi-Fi client - runs thermostat UI, reads analog sensors, and maintains persistent AP association. Use Value: Integrated 12-bit ADC and 2.4 GHz WLAN eliminate external transceiver and signal conditioning ICs, reducing bill-of-materials by 4 components. |
Use Scenario: Bridging BLE/Zigbee sensor networks to Ethernet/IP infrastructure in building automation systems. IC Role / Device Role / Timing Role: Dual-role SoC - hosts BLE mesh stack on Cortex-M4F while managing concurrent 802.11n client association and packet forwarding. Use Value: Hardware AES-CCMP and WPA3 support ensure secure over-the-air updates and encrypted backhaul to central controllers. |
| Wi-Fi Smart Appliance Control | Connected Security Camera |
Use Scenario: Remote monitoring and control of refrigerator door status, compressor cycles, and internal temperature via mobile app. IC Role / Device Role / Timing Role: System-on-chip controller - handles appliance state machine, UART communication with compressor driver, and Wi-Fi telemetry upload. Use Value: 35 GPIOs with UART/SSP/I²C muxing allow direct connection to door switch, thermistor, and display without level-shifting or bus expanders. |
Use Scenario: Battery-powered indoor camera transmitting motion-triggered JPEG snapshots over Wi-Fi to cloud storage. IC Role / Device Role / Timing Role: Low-power imaging controller - enters deep sleep between motion events, wakes on GPIO interrupt, captures image via SPI interface, and transmits via WLAN. Use Value: Independent WLAN subsystem sleep mode enables <15 µA retention current while maintaining Wi-Fi association context for sub-second wake-and-transmit latency. |
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 Wi-Fi + Bluetooth 4.2/5, dual-core Xtensa LX6, 4 MB Flash onboard, no integrated PA/LNA - requires external matching network | Supports dual-mode Bluetooth coexistence; lacks hardware WPA3 SAE acceleration and dedicated WLAN MAC offload | Preferred when Bluetooth LE mesh or audio streaming is required; less suitable for ultra-low-power always-on Wi-Fi clients |
| RTL8720DN | ARM Cortex-M23 @ 200 MHz, 2.4 GHz Wi-Fi 802.11n, 1 MB PSRAM, integrated PA/LNA, but no hardware AES-CMAC or WPA3 SAE | Lower security certification readiness; lacks independent WLAN/MCU power domains - higher active current in partial-sleep scenarios | Better for cost-sensitive consumer devices where WPA2 suffices and continuous Wi-Fi presence is not required |
Compared with ESP32-WROOM-32 and RTL8720DN, the 88MW320-A0-NAPC/AK provides superior security compliance (WPA3 SAE, CMAC), lower system-level power in duty-cycled applications due to domain-isolated sleep, and higher integration density - making it optimal for certified industrial and medical-grade connected devices.
Availability
88MW320-A0-NAPC/AK is available at Aetrix Electronics and suitable for smart home thermostats, industrial gateways, and Wi-Fi-enabled appliances requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for 88MW320-A0-NAPC/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 leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with headquarters in Eindhoven, Netherlands.
The 88MW320-A0-NAPC/AK belongs to NXP's i.MX RT and KW series wireless SoC family, designed specifically for secure, low-power Wi-Fi client applications in resource-constrained edge devices where certification readiness and RF integration are critical.
FAQ
What is the maximum Wi-Fi data throughput supported by the 88MW320-A0-NAPC/AK?
The 88MW320-A0-NAPC/AK supports IEEE 802.11n HT20 mode with a maximum physical layer data rate of 72.2 Mbps. This throughput is achievable under ideal RF conditions with a single spatial stream (SISO) in the 2.4 GHz band. Real-world application-layer throughput depends on network congestion, distance, and interference but typically ranges from 25–45 Mbps for TCP/IP transfers. The 88MW320-A0-NAPC/AK does not support HT40 or MIMO configurations.
Does the 88MW320-A0-NAPC/AK support USB On-The-Go functionality?
No, the 88MW320-A0-NAPC/AK does not support USB OTG. USB OTG is exclusive to the 88-pin 88MW322 variant. The 88MW320-A0-NAPC/AK is packaged in a 68-pin QFN and omits the USB_DP, USB_DM, USB_ID, and related analog power pins. Designers requiring USB must select the 88MW322 or implement external USB-to-UART bridge ICs.
What are the supported low-power modes and typical current consumption in each?
The 88MW320-A0-NAPC/AK supports five low-power modes: idle (<1.2 mA), standby (<80 µA), sleep (<15 µA), shutoff (<2 µA), and power-down (<0.5 µA). In sleep mode, the WLAN subsystem retains association context while the Cortex-M4F core is halted - enabling wake-up in <100 µs via GPIO, RTC, or IRQ. Current values assume default configuration with internal regulators enabled and no external loads.
How is secure boot implemented on the 88MW320-A0-NAPC/AK?
The 88MW320-A0-NAPC/AK implements secure boot using a hardware root-of-trust with immutable boot ROM that validates digital signatures of firmware images stored in external QSPI Flash. It supports ECDSA-P256 signature verification and SHA-256 hash checking. Boot images must be signed using NXP's Secure Boot Key Infrastructure; the 88MW320-A0-NAPC/AK does not support user-programmable keys or field-upgradable root certificates.
Can the 88MW320-A0-NAPC/AK operate without an external crystal?
No, the 88MW320-A0-NAPC/AK requires an external 38.4 MHz crystal for primary clock generation - the WLAN baseband and MAC depend on this reference for RF timing accuracy and regulatory compliance. A 32.768 kHz crystal is optional and only needed if the RTC is used. Internal RC oscillators are not qualified for WLAN operation and cannot replace the 38.4 MHz crystal.
88MW320-A0-NAPC/AK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 88MW320
- Package/Case:
- 68-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:
- 68-HVQFN (8x8)
88MW320-A0-NAPC/AK FAQ
1.How can I place an order for 88MW320-A0-NAPC/AK through Aetrix?
Please submit a Request for Quotation (RFQ) for 88MW320-A0-NAPC/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 88MW320-A0-NAPC/AK reliable?
The price and inventory of 88MW320-A0-NAPC/AK 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-NAPC/AK is usually 5 days.
3.What payment methods are accepted for 88MW320-A0-NAPC/AK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 88MW320-A0-NAPC/AK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 88MW320-A0-NAPC/AK?
88MW320-A0-NAPC/AK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 88MW320-A0-NAPC/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 88MW320-A0-NAPC/AK?
For technical support, including 88MW320-A0-NAPC/AK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 88MW320-A0-NAPC/AK requirements.
6.How does Aetrix verify that 88MW320-A0-NAPC/AK is sourced from the original manufacturer or authorized distributors?
All 88MW320-A0-NAPC/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 88MW320-A0-NAPC/AK meets industry standards.
7.What is the process for return or replacement of 88MW320-A0-NAPC/AK?
All 88MW320-A0-NAPC/AK units undergo pre-shipment inspection (PSI). If there is an issue with 88MW320-A0-NAPC/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 88MW320-A0-NAPC/AK part is unused and in its original packaging.
Return procedure for 88MW320-A0-NAPC/AK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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