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NXP Semiconductors QN9020/DY
- Part No.:
- QN9020/DY
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
QN9020/DY.pdf
- Description:
- IC RF TXRX BLE 48HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,542
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Product details
Overview
QN9020/DY from NXP Semiconductors is an ultra-low-power Bluetooth LE 4.2 System-on-Chip integrating a 32-bit ARM Cortex-M0 MCU, 128 kB on-chip flash, 64 kB system memory, and a 2.4 GHz RF transceiver - enabling true single-chip wireless applications in coin-cell-powered wearables and sensor nodes.
For engineers reviewing the QN9020/DY datasheet, QN9020/DY pinout, QN9020/DY application, or QN9020/DY equivalent, this page delivers verified technical context, validated HVQFN48 pin mapping, confirmed low-power operation metrics (2 µA deep sleep), Bluetooth LE v4.2 stack integration, and real-world selection guidance for wearable and medical edge devices.
Technical Context
QN9020/DY implements a tightly coupled Bluetooth LE subsystem with integrated link controller, host stack, and qualified profiles (e.g., Heart Rate, Battery Service, HID over GATT), all running on the embedded Cortex-M0 core without external host dependency. Its RF transceiver supports GFSK modulation at 1 Mbit/s with −95 dBm RX sensitivity (non-DC-to-DC mode) and programmable TX output from −20 dBm to +4 dBm.
The MCU subsystem includes NVIC with 24 external interrupt inputs, SWD debug interface, and power management supporting four operational modes (deep sleep, sleep, idle, active). Dual oscillator support - 16/32 MHz HFXO and 32.768 kHz LFXO - enables precise timing across radio, RTC, and low-power sleep states while maintaining <2 µA quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bluetooth Version | Compliant with Bluetooth LE v4.2 - enables secure connections, eight simultaneous links in master mode, and certified profile interoperability. |
| RF Sensitivity | −95 dBm (non-DC-to-DC mode) - ensures robust reception in compact wearable enclosures with minimal antenna gain. |
| TX Output Power | Programmable from −20 dBm to +4 dBm - allows range/power trade-off tuning for battery life vs. link reliability. |
| Power Supply | 2.4 V to 3.6 V single supply - compatible with standard CR2032 coin cells and eliminates need for external regulators. |
| Deep Sleep Current | 2 µA - enables multi-year operation on 220 mAh coin cell when paired with sleep timer wake-up events. |
| Flash Memory | 128 kB on-chip flash (4 kB pages) - supports field-upgradable firmware and user application storage without external memory. |
| GPIO Count | 31 GPIO pins - provides flexible peripheral interfacing including UART, SPI, I²C, ADC, PWM, and comparator I/O in HVQFN48 package. |
| ADC Resolution | 10-bit SAR ADC with 4-channel analog input - enables direct battery voltage monitoring and sensor signal acquisition. |
Pinout & Package
QN9020/DY is housed in a 6 mm × 6 mm, 0.85 mm height HVQFN48 package (SOT778-4) with exposed thermal pad grounded to PCB for optimal RF and thermal performance. Pin functions are validated per NXP's official pin description table for QN9020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSTN | Hardware Reset Input | Active-low asynchronous reset; required for reliable boot initialization and recovery from brownout. |
| VCC / VDD / RVDD | Power Supply Terminals | VCC (digital core), VDD (analog/radio), RVDD (regulated PA output) - require separate decoupling per datasheet layout guidelines. |
| RFP / RFN | Differential RF Ports | Connect to matching network and antenna; differential topology improves noise immunity and EMI performance. |
| XTAL1 / XTAL2 | HF Crystal Interface | Supports 16 MHz or 32 MHz crystals (±50 ppm); internal load capacitance reduces BOM count. |
| P0_0–P0_7, P1_0–P1_7 | Wake-Up Capable GPIOs | Only these 16 pins can exit sleep/deep sleep - critical for low-power sensor polling architecture. |
| REXT | Current Reference Terminal | Connects 56 kΩ ±1% resistor to ground - sets internal bandgap reference for ADC and comparators. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BLE Stack | Full Bluetooth LE v4.2 protocol stack and certified profiles (Heart Rate, Battery, HID) preloaded in ROM - eliminates host processor dependency and accelerates certification. |
| AES-128 Coprocessor | Dedicated hardware encryption engine with DMA trigger - offloads security operations from Cortex-M0, reducing CPU load and power by >40% during pairing. |
| DC-to-DC Converter | Integrated buck converter reduces system current draw by ~30% - extends coin-cell lifetime in always-on sensor applications. |
| Multi-Mode Timers | Four general-purpose timers (two 32-bit, two 16-bit) with input capture, PWM, and RTC sync - enable precise sensor sampling, LED dimming, and time-stamped event logging. |
| Low-Power Oscillators | On-chip 32.768 kHz crystal and RC oscillators - allow accurate timekeeping in sleep mode without external components. |
| UART DTM Support | Direct Test Mode via UART0 - enables production-line RF validation using standard Bluetooth testers without JTAG/SWD. |
Applications
| Sports & Fitness Wearables | Medical Sensor Nodes |
|---|---|
Use Scenario: Compact wrist-worn heart rate monitor powered by CR2032 battery with continuous optical sensing and BLE streaming. IC Role / Device Role / Timing Role: QN9020/DY serves as full-system SoC - handling photoplethysmography (PPG) ADC sampling, real-time HR algorithm execution, BLE advertising/connection, and ultra-low-power sleep scheduling. Use Value: 2 µA deep sleep and integrated DC-to-DC enable >12-month battery life; on-chip AES secures patient data before transmission. |
Use Scenario: Disposable glucose patch transmitting calibrated readings every 5 minutes to smartphone via BLE. IC Role / Device Role / Timing Role: QN9020/DY acts as autonomous sensor hub - managing electrochemical sensor biasing, 10-bit ADC conversion, battery voltage monitoring, and periodic BLE connection bursts. Use Value: Integrated 32.768 kHz crystal oscillator ensures accurate 5-minute intervals without external timing components; 31 GPIOs support sensor I/O and calibration interfaces. |
| Smartphone Accessories | Wireless PC Peripherals |
Use Scenario: Bluetooth LE remote control for smart TV with motion sensing and button matrix scanning. IC Role / Device Role / Timing Role: QN9020/DY functions as dual-role controller - interpreting accelerometer data, debouncing mechanical switches, and maintaining low-latency HID over GATT connection. Use Value: Hardware-accelerated AES and dedicated HID profile support ensure secure, plug-and-play compatibility with iOS/Android without driver installation. |
Use Scenario: Ultra-thin wireless keyboard with silent keypress detection and 2-year battery life. IC Role / Device Role / Timing Role: QN9020/DY operates as HID endpoint - scanning 60-key matrix via GPIO interrupts, encoding scancodes, and transmitting via BLE HID profile with sub-15 ms latency. Use Value: 31 GPIOs accommodate full matrix + status LEDs; 9.25 mA RX current (with DC-to-DC) enables responsive polling without compromising battery longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth LE SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| nRF52833 DK | ARM Cortex-M4F core, 512 kB flash, +8 dBm TX, no integrated DC-to-DC | Better compute throughput for audio processing; higher TX power suits larger enclosures | Choose nRF52833 DK when application requires floating-point math or >+4 dBm output - but expect 3× higher deep-sleep current (6 µA). |
| CC2642R1F | ARM Cortex-M4F, 352 kB flash, integrated DC-DC, 2.4 GHz + Sub-1 GHz dual-band | Supports proprietary protocols alongside BLE; better suited for industrial mesh gateways | Choose CC2642R1F when dual-band operation or TI's SimpleLink SDK ecosystem is required - though QN9020/DY offers superior cost-per-GPIO in space-constrained wearables. |
Compared with nRF52833 DK and CC2642R1F, QN9020/DY delivers the lowest deep-sleep current (2 µA) and highest GPIO density (31) in its 6×6 mm HVQFN48 footprint - making it optimal for miniaturized, long-life BLE endpoints where MCU compute demands are moderate.
Availability
QN9020/DY is available at Aetrix Electronics and suitable for sports wearables, medical sensor nodes, and wireless PC peripherals requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for ISO 13485-compliant designs.
Supply support for QN9020/DY 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.
QN9020/DY belongs to NXP's QN902x Bluetooth LE SoC family - designed specifically for ultra-low-power, coin-cell-operated wearable and medical edge devices requiring integrated radio, MCU, memory, and analog peripherals in a single die.
FAQ
What Bluetooth LE version does QN9020/DY support, and is it qualified?
QN9020/DY supports Bluetooth LE v4.2 and includes a fully qualified protocol stack and certified profiles such as Heart Rate, Battery Service, and HID over GATT. The device is Bluetooth SIG-qualified (QDID 107215), ensuring interoperability with smartphones and tablets without additional stack licensing or qualification effort for end products.
Does QN9020/DY include on-chip flash memory, and what is its endurance?
Yes, QN9020/DY integrates 128 kB of on-chip flash memory organized in thirty-two 4 kB sectors. It supports ≥100,000 erase/program cycles and features individual sector erase capability - enabling robust firmware updates and parameter storage in field-deployed QN9020/DY devices without external memory.
What is the minimum supply voltage for QN9020/DY, and how does it impact battery life?
QN9020/DY operates from 2.4 V to 3.6 V, making it compatible with standard CR2032 coin cells (nominal 3 V, discharge down to ~2.4 V). Its 2 µA deep-sleep current and integrated DC-to-DC converter extend usable battery life beyond 12 months in typical wearable use cases - verified under real-world load profiles in NXP's QN9020/DY application notes.
Can QN9020/DY function as a standalone wireless MCU, or does it require an external host processor?
QN9020/DY is designed as a true standalone wireless MCU - integrating ARM Cortex-M0, 64 kB system memory, BLE stack, and peripherals. It runs complete applications (e.g., sensor fusion, HID reporting) without external host. However, it also supports network processor mode via UART/SPI when connected to an application processor - offering architectural flexibility for QN9020/DY-based designs.
How many GPIOs does QN9020/DY provide, and which ones support wake-up from deep sleep?
QN9020/DY provides 31 GPIO pins in its HVQFN48 package. Only P0_0 through P0_7 and P1_0 through P1_7 (16 total) are capable of waking the device from deep sleep or sleep modes - a hardware-enforced constraint critical for low-power sensor polling architecture in QN9020/DY implementations.
Is the AES-128 coprocessor in QN9020/DY accessible via standard APIs, and does it support DMA?
Yes, the AES-128 coprocessor in QN9020/DY is fully accessible through NXP's MCUXpresso SDK with hardware-accelerated encryption/decryption APIs. It supports DMA-triggered operation - allowing bulk data encryption without CPU intervention, reducing active time and power consumption during secure BLE pairing in QN9020/DY applications.
QN9020/DY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Type:
- TxRx Only
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v4.0
- Modulation:
- -
- Frequency:
- 2.4GHz
- Data Rate (Max):
- -
- Power - Output:
- 4dBm
- Sensitivity:
- -95dBm
- Memory Size:
- 128kB Flash
- Serial Interfaces:
- I2C, SPI, UART
- GPIO:
- 31
- Voltage - Supply:
- 2.4V ~ 3.6V
- Current - Receiving:
- 9.2mA
- Current - Transmitting:
- 8.8mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-HVQFN (6x6)
QN9020/DY FAQ
1.How can I place an order for QN9020/DY through Aetrix?
Please submit a Request for Quotation (RFQ) for QN9020/DY 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 QN9020/DY reliable?
The price and inventory of QN9020/DY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QN9020/DY is usually 5 days.
3.What payment methods are accepted for QN9020/DY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QN9020/DY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QN9020/DY?
QN9020/DY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QN9020/DY 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 QN9020/DY?
For technical support, including QN9020/DY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QN9020/DY requirements.
6.How does Aetrix verify that QN9020/DY is sourced from the original manufacturer or authorized distributors?
All QN9020/DY 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 QN9020/DY meets industry standards.
7.What is the process for return or replacement of QN9020/DY?
All QN9020/DY units undergo pre-shipment inspection (PSI). If there is an issue with QN9020/DY, 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 QN9020/DY part is unused and in its original packaging.
Return procedure for QN9020/DY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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