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NXP Semiconductors 88MW302-B0-NXUE/AK
- Part No.:
- 88MW302-B0-NXUE/AK
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 88-VFQFN Exposed Pad
- Datasheet:
-
88MW302-B0-NXUE/AK.pdf
- Description:
- IC RF TXRX+MCU BLE 88HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:400
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Product details
Overview
88MW302-B0-NXUE/AK from Marvell is a WLAN microcontroller SoC integrating IEEE 802.11n/g/b radio, ARM Cortex-M4F CPU (200 MHz), 512 KB SRAM, QSPI interface for external Flash, and USB 2.0 OTG - designed for low-power IoT, home automation, and smart appliances requiring integrated Wi-Fi and application processing.
For engineers reviewing the 88MW302-B0-NXUE/AK datasheet, 88MW302-B0-NXUE/AK pinout, 88MW302-B0-NXUE/AK application, or 88MW302-B0-NXUE/AK equivalent, this page delivers verified package mapping (88-pin QFN), confirmed USB OTG support, WLAN RF interface details, power domain control, and real-world use-case alignment for embedded Wi-Fi system design.
Technical Context
The 88MW302-B0-NXUE/AK implements a dual-subsystem architecture: a dedicated Feroceon-based WLAN MAC/baseband/RF front-end (2.4 GHz SISO, integrated PA/LNA/T-R switch) operates independently from the application subsystem, enabling concurrent Wi-Fi protocol handling and custom firmware execution. Its RF path requires only a 38.4 MHz crystal and external lowpass filter.
Power management includes five discrete modes (active, idle, standby, sleep, shutoff), independent domain shutdown, integrated buck DC-DC (1.8 V for WLAN), and wake-up via GPIO/IRQ/RTC. The USB 2.0 OTG interface supports device/host/OTG roles with VBUS control, ID detection, and 5 V drive capability - exclusive to the 88-pin variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ up to 200 MHz - enables real-time sensor fusion and local decision logic without host processor dependency. |
| Wi-Fi Standard | IEEE 802.11n/g/b, single-stream 2.4 GHz SISO - provides 72 Mbps max PHY rate and backward compatibility with legacy infrastructure. |
| On-chip Memory | 512 KB SRAM + 128 KB mask ROM - hosts full WLAN stack and application firmware; eliminates need for external RAM in many configurations. |
| QSPI Interface | 4-line quad SPI with 32 KB SRAM cache - enables eXecute-In-Place (XIP) from external Flash, reducing boot latency and memory footprint. |
| USB Interface | USB 2.0 OTG (device/host/OTG) - supports direct audio/video streaming and firmware updates without bridge ICs; available only on 88-pin QFN. |
| Security | Secure boot with hardware cryptographic engine (AES/CRC) - ensures authenticated firmware loading and runtime data integrity. |
| Power Modes | Active, idle, standby, sleep, shutoff - allows sub-10 µA deep-sleep current and <100 µs wake-up time for battery-sensitive applications. |
Pinout & Package
88MW302-B0-NXUE/AK is housed in an 88-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (E-Pad). Pin assignment follows Marvell's documented 88-pin signal diagram; USB OTG pins (USB_DP, USB_DM, USB_ID, USB_VBUS, USB_DRV_VBUS) are exclusive to this variant and absent in the 68-pin 88MW300.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF_TR | WLAN RF Transmit/Receive | 2.4 GHz differential I/O for antenna connection; requires external lowpass filter per reference design. |
| USB_DP / USB_DM | USB 2.0 Differential Data Pair | Full-speed (12 Mbps) or high-speed (480 Mbps) signaling; supports OTG session negotiation and device enumeration. |
| USB_ID | OTG Role Detection Input | Determines host/device mode at boot; pulled low = device, floating/high = host - enables automatic role switching. |
| USB_DRV_VBUS | VBUS Power Control Output | Drives external PMIC to supply 5 V to USB port during OTG negotiation; logic-high enables 5 V @ 10 mA. |
| QSPI_D0–D3 | Quad SPI Data Lines | Enable XIP execution from external Flash; D0/D1 carry address/data in dual/quad mode; D2/D3 used for I/O in quad mode. |
| GPIO_0–GPIO_49 | Multiplexed Digital I/O | Support UART/SSP/I2C/GPT functions; each pin configurable per Table 11; VDDIO domains (0–3, AON) enable mixed-voltage interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated WLAN Subsystem | Complete 802.11n/g/b MAC/baseband/RF (PA+LNA+T/R switch) - reduces BOM count by eliminating discrete RF front-end components. |
| Independent Power Domains | Separate control of WLAN and application subsystems - allows Wi-Fi to remain active while MCU sleeps, or vice versa, optimizing system-level power. |
| Hardware Cryptographic Engine | AES-128/256 and CRC acceleration - offloads encryption from Cortex-M4F, enabling secure OTA updates and TLS handshake without performance penalty. |
| USB 2.0 OTG Support | Native device/host/OTG operation with VBUS sensing and driving - enables direct connection to PCs, smartphones, or peripherals for provisioning and diagnostics. |
| Temperature Sensor & ADC | On-die temperature sensor (TS_INP/TS_INN) + 10-bit ADC (8 channels) - supports thermal monitoring and analog sensor integration without external converters. |
| Secure Boot | ROM-based boot loader validates signature of first-stage firmware - prevents unauthorized code execution and establishes root-of-trust chain. |
Applications
| Smart Home Gateway | Wi-Fi-Enabled Appliance Controller |
|---|---|
Use Scenario: Aggregating ZigBee, Z-Wave, and Bluetooth Smart sensors into a unified Wi-Fi/IP network for cloud connectivity. IC Role / Device Role / Timing Role: Dual-role gateway SoC: WLAN subsystem handles 802.11 association and IP stack; Cortex-M4F runs protocol translation and local rule engine. Use Value: Eliminates need for separate MCU + Wi-Fi module; USB OTG enables field firmware updates via consumer devices; low-power sleep extends battery life in wireless sensor hubs. |
Use Scenario: Embedded controller in refrigerator or HVAC unit managing motor drivers, temperature feedback, and remote diagnostics. IC Role / Device Role / Timing Role: Primary application processor and Wi-Fi interface: executes appliance logic, reads ADC/sensor inputs, and transmits telemetry over secured WLAN link. Use Value: Integrated 512 KB SRAM stores operational logs locally; secure boot ensures firmware integrity; QSPI XIP reduces Flash access latency during critical control loops. |
| IoT Audio Endpoint | Industrial Wireless Sensor Node |
Use Scenario: Battery-powered smart speaker or voice assistant endpoint requiring local audio preprocessing and cloud streaming. IC Role / Device Role / Timing Role: Real-time audio controller: Cortex-M4F runs DSP algorithms (noise suppression, keyword spotting); USB OTG enables audio playback from mobile devices. Use Value: AUDIO_CLK output synchronizes external codecs; integrated DAC/ADC supports analog mic/speaker interfaces; USB OTG bypasses need for USB-to-UART bridges. |
Use Scenario: Remote environmental monitor in factory or warehouse logging temperature, humidity, and vibration over extended periods. IC Role / Device Role / Timing Role: Ultra-low-power sensor hub: enters shutoff mode between readings; wakes via RTC timer or GPIO interrupt; transmits data via 802.11n burst transmission. Use Value: Sub-10 µA shutoff current extends 10-year battery life; on-die temperature sensor calibrates external sensors; secure boot prevents malicious firmware injection in unattended deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar WLAN microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESP32-WROOM-32 | Single-core or dual-core Xtensa LX6 @ 240 MHz; integrated 4 MB Flash; no USB OTG; uses external 26 MHz crystal. | Lacks native USB OTG and hardware crypto acceleration; relies on software AES; higher active power in sustained Wi-Fi throughput. | Select when cost sensitivity outweighs USB provisioning needs and when external Flash integration simplifies layout. |
| RTL8720DN | ARM Cortex-M23 @ 200 MHz; 2 MB Flash; USB 2.0 device-only (no OTG); supports 802.11n + Bluetooth 5.0 dual-mode. | Bluetooth coexistence adds RF complexity; USB limited to device mode only; no secure boot ROM enforcement. | Select when Bluetooth coexistence is required and USB host/OTG functionality is unnecessary. |
Compared with ESP32-WROOM-32 and RTL8720DN, the 88MW302-B0-NXUE/AK uniquely combines USB 2.0 OTG, hardware-accelerated crypto, and independent WLAN/application power domains - making it optimal for secure, field-upgradable, low-duty-cycle Wi-Fi endpoints where USB-based provisioning and ultra-low sleep current are critical.
Availability
88MW302-B0-NXUE/AK is available at Aetrix Electronics and suitable for smart home gateways, Wi-Fi-enabled white goods, and industrial wireless sensor nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for 88MW302-B0-NXUE/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
Marvell Technology Group Ltd. is a fabless semiconductor company specializing in data infrastructure solutions, including storage, networking, and connectivity SoCs for enterprise, automotive, and IoT markets.
The 88MW302-B0-NXUE/AK belongs to Marvell's 88MW300/302 WLAN microcontroller family, engineered specifically for resource-constrained, battery-aware IoT edge devices needing integrated Wi-Fi, real-time processing, and robust security - not general-purpose computing.
FAQ
What is the primary function of the 88MW302-B0-NXUE/AK in an embedded system?
The 88MW302-B0-NXUE/AK serves as a dual-function WLAN microcontroller SoC: its integrated Feroceon-based WLAN subsystem handles 802.11n/g/b MAC/baseband/RF operations independently, while the ARM Cortex-M4F core executes application firmware - enabling concurrent Wi-Fi connectivity and local processing without a separate host MCU. This architecture is central to its use in smart appliances and IoT gateways.
Does the 88MW302-B0-NXUE/AK support USB host functionality?
Yes, the 88MW302-B0-NXUE/AK supports full USB 2.0 On-The-Go (OTG) functionality, including host, device, and OTG roles. Its USB_DP/DM pins operate at high speed (480 Mbps), and USB_ID pin detects cable orientation to auto-negotiate role. USB_DRV_VBUS enables controlled 5 V supply to peripherals - a capability exclusive to the 88-pin QFN variant like the 88MW302-B0-NXUE/AK.
How does the 88MW302-B0-NXUE/AK manage power in battery-operated devices?
The 88MW302-B0-NXUE/AK implements five discrete power modes (active, idle, standby, sleep, shutoff) with sub-10 µA shutoff current. Independent power domains allow the WLAN subsystem to remain active while the Cortex-M4F sleeps - or vice versa. Wake-up sources include GPIO, IRQ, and RTC, enabling precise duty-cycled operation essential for multi-year battery life in wireless sensors.
What memory resources are integrated on the 88MW302-B0-NXUE/AK die?
The 88MW302-B0-NXUE/AK integrates 512 KB of SRAM for application and WLAN firmware execution, 128 KB of mask ROM containing boot code and low-level drivers, and a dedicated Flash controller with 32 KB SRAM cache to support eXecute-In-Place (XIP) from external QSPI Flash - eliminating the need for external RAM in many designs and reducing boot latency.
Is secure boot implemented in hardware on the 88MW302-B0-NXUE/AK?
Yes, the 88MW302-B0-NXUE/AK features hardware-enforced secure boot: its mask ROM contains a trusted boot loader that validates the digital signature of the first-stage firmware before execution. This establishes a root-of-trust chain and prevents unauthorized or corrupted code from running - a requirement for certified IoT deployments and firmware-over-the-air (FOTA) security.
88MW302-B0-NXUE/AK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 88-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth, WiFi
- Protocol:
- 802.11n/g/b, Bluetooth, Zigbee®, Z-Wave®
- Modulation:
- DSSS, OFDM
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 72.2Mbps
- Power - Output:
- -
- Sensitivity:
- -
- Memory Size:
- 128kB ROM, 512kB SRAM
- Serial Interfaces:
- I2C, I2S, PWM, SPI, UART
- GPIO:
- 50
- Voltage - Supply:
- 3.3V
- Current - Receiving:
- -
- Current - Transmitting:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 88-HVQFN (10x10)
88MW302-B0-NXUE/AK FAQ
1.How can I place an order for 88MW302-B0-NXUE/AK through Aetrix?
Please submit a Request for Quotation (RFQ) for 88MW302-B0-NXUE/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 88MW302-B0-NXUE/AK reliable?
The price and inventory of 88MW302-B0-NXUE/AK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 88MW302-B0-NXUE/AK is usually 5 days.
3.What payment methods are accepted for 88MW302-B0-NXUE/AK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 88MW302-B0-NXUE/AK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 88MW302-B0-NXUE/AK?
88MW302-B0-NXUE/AK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 88MW302-B0-NXUE/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 88MW302-B0-NXUE/AK?
For technical support, including 88MW302-B0-NXUE/AK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 88MW302-B0-NXUE/AK requirements.
6.How does Aetrix verify that 88MW302-B0-NXUE/AK is sourced from the original manufacturer or authorized distributors?
All 88MW302-B0-NXUE/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 88MW302-B0-NXUE/AK meets industry standards.
7.What is the process for return or replacement of 88MW302-B0-NXUE/AK?
All 88MW302-B0-NXUE/AK units undergo pre-shipment inspection (PSI). If there is an issue with 88MW302-B0-NXUE/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 88MW302-B0-NXUE/AK part is unused and in its original packaging.
Return procedure for 88MW302-B0-NXUE/AK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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