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NXP Semiconductors K32W061Y
- Part No.:
- K32W061Y
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
K32W061Y.pdf
- Description:
- IC RF TXRX+MCU 802.15.4 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
K32W061Y from NXP Semiconductors is an ultra-low-power Arm® Cortex®-M4 wireless microcontroller supporting Zigbee 3.0, Thread, and Bluetooth Low Energy 5.0 protocols. It integrates a 2.4 GHz IEEE 802.15.4 transceiver, a +11 dBm BLE 5.0 transceiver with -97 dBm sensitivity, 640 KB Flash/152 KB SRAM, and an embedded NTAG NFC interface - enabling secure, battery-operated smart locks and sensor nodes.
For engineers reviewing the K32W061Y datasheet, K32W061Y pinout, K32W061Y application, or K32W061Y equivalent, this page delivers verified technical context, validated pin functions for HVQFN40, real-world low-power operation metrics (350 nA deep power-down), and precise alternative part comparisons for home automation and building control designs.
Technical Context
The K32W061Y implements dual concurrent radio stacks via a shared Arm Cortex-M4 core running at up to 48 MHz, with hardware accelerators for AES-128/256, SHA-1/SHA-256, and MAC-layer packet handling. Its RF subsystem includes integrated balun, antenna diversity control (ADE/ADO), and dedicated 32 kHz XTAL oscillator for BLE timing retention during power-down cycles.
On-chip peripherals include a dual-channel PDM microphone interface with voice activity detection, 8-channel 12-bit ADC (190 ksamples/s), 10 PWM outputs, two I²C buses (open-drain), two SPI interfaces, two USARTs (one with flow control), and ISO7816 smart card interface - all operating across a 1.9–3.6 V supply range with -40 °C to +125 °C junction temperature rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 @ 48 MHz - enables real-time stack execution and application logic without external processor. |
| Memory | 640 KB Flash / 152 KB SRAM - supports OTA firmware updates and concurrent multi-protocol stack operation. |
| Radio Support | Zigbee 3.0, Thread, BLE 5.0 - single-chip solution for interoperable mesh networks in certified home automation devices. |
| RF Performance | +11 dBm TX power, -97 dBm BLE RX sensitivity, -100 dBm 802.15.4 RX sensitivity - ensures robust link budget in dense RF environments. |
| Low-Power Modes | 350 nA deep power-down with IO wake-up - enables >10-year coin-cell battery life in wireless sensors and locks. |
| NFC Interface | Integrated NTAG I²C (Type 2) - provides contactless provisioning, secure pairing, and firmware update triggers without external NFC controller. |
| Package | HVQFN40, 6 × 6 mm, 0.5 mm pitch - compact footprint compatible with high-density PCB layouts and automated assembly. |
Pinout & Package
HVQFN40 package (SOT618-1), 6 × 6 mm, 0.5 mm pitch, lead-free and RoHS compliant, with exposed die pad connected to RF ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF_IO (Pin 37) | RF Transceiver Antenna Interface | Direct connection point for 2.4 GHz antenna; supports internal balun and antenna diversity switching (ADE/ADO). |
| LA / LB (Pins 39–40) | NFC Tag Antenna Inputs | Dedicated differential inputs for external NTAG antenna - exclusive to K32W061Y variant. |
| XTAL_P / XTAL_N (Pins 1–2) | 32 MHz System Crystal | Drives main CPU and radio timing; internal capacitors eliminate need for external load caps in most designs. |
| XTAL_32K_P / XTAL_32K_N (Pins 33–34) | 32.768 kHz RTC Crystal | Provides precision timing for BLE sleep clock and RTC alarm - essential for low-power periodic wake-up. |
| VDD(RADIO) / VSS(RF) (Pins 35, 36, 38) | RF Power/Ground Separation | Isolated analog RF supply and ground planes minimize noise coupling into sensitive receiver path. |
| PIO14/ADC0 – PIO19/ADC5 (Pins 17–23) | Analog Input Channels | 6 dedicated ADC input pins (12-bit, 190 ksamples/s) with DMA support - enable simultaneous sensor monitoring without CPU overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Protocol Radio Stack | Hardware-accelerated IEEE 802.15.4 and BLE 5.0 baseband with concurrent operation - eliminates external coexistence management logic. |
| Ultra-Low-Power Operation | 350 nA deep power-down current with IO wake-up and 4.3 mA RX current - extends coin-cell lifetime beyond 10 years in intermittent-sensing applications. |
| Integrated Security Engine | AES-128/256, SHA-1/SHA-256, and eFuse-stored keys - enables secure boot, encrypted OTA updates, and device attestation per PSA Level 2 requirements. |
| Smart Audio Subsystem | Dual-channel PDM interface with hardware voice activity detector - reduces average power in always-listening voice-controlled devices by >70%. |
| Flexible Debug & Programming | Serial Wire Debug (SWD) with 8 breakpoints, 4 watchpoints, and SWO trace output - supports real-time firmware analysis without pin contention. |
Applications
| Smart Lock Access Control | Wireless Occupancy Sensor |
|---|---|
|
Use Scenario: Battery-powered door lock with BLE provisioning, Zigbee network enrollment, and NFC tap-to-pair. IC Role / Device Role / Timing Role: Primary MCU executing secure BLE/Zigbee stacks, managing motor driver GPIOs, and validating credentials via NTAG-triggered AES decryption. Use Value: Single-chip integration eliminates separate NFC controller and RF front-end, reducing BOM cost by $0.85 and PCB area by 28 mm². |
Use Scenario: Ceiling-mounted PIR + ambient light sensor node reporting occupancy status every 30 seconds via Thread mesh. IC Role / Device Role / Timing Role: Low-power sensor aggregator with 12-bit ADC sampling, DMA-driven data transfer, and deep-sleep timer wake-up at precise intervals. Use Value: 350 nA deep power-down and hardware RTC alarm enable >7-year battery life on CR2477 cell without compromising reporting latency. |
| BLE Mesh Lighting Node | Secure Smart Thermostat |
|
Use Scenario: Dimmable LED fixture joining BLE mesh network for group control and firmware updates over-the-air. IC Role / Device Role / Timing Role: BLE 5.0 controller with 8 simultaneous connections, 10-channel PWM for smooth dimming, and OTA-capable Flash memory. Use Value: Concurrent BLE advertising/scanning and application execution allows seamless OTA updates without service interruption. |
Use Scenario: HVAC controller with temperature/humidity sensing, local display, and secure Thread commissioning via NFC tap. IC Role / Device Role / Timing Role: Dual-role MCU running Thread stack and UI task scheduler, using integrated temperature sensor and comparator for fan control hysteresis. Use Value: On-die temperature sensor (±2.5 °C accuracy) and battery monitor eliminate external analog components, cutting system cost by $0.32. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EFR32MG21A020F1024IM32 | Higher TX power (+20 dBm), no integrated NFC, larger QFN48 package (7 × 7 mm), 1024 KB Flash. | Better RF range in open-field deployments; lacks contactless provisioning - requires external NFC IC for tap-to-pair. | Select when extended outdoor coverage is critical and NFC is handled separately. |
| CC2652RB | Integrated BAW resonator eliminates 32 MHz XTAL, lower RX current (3.5 mA), no NTAG, 352 KB Flash. | Reduced bill-of-materials count for crystal; smaller memory limits complex multi-stack applications. | Choose for cost-sensitive, single-protocol (BLE-only) nodes where crystal placement is constrained. |
Compared with EFR32MG21A020F1024IM32 and CC2652RB, the K32W061Y uniquely combines NFC tag, multi-protocol concurrency, and sub-μA deep-sleep in a 6 mm × 6 mm HVQFN40 - making it optimal for space-constrained, secure, battery-powered edge nodes requiring zero-touch setup.
Availability
K32W061Y is available at Aetrix Electronics and suitable for smart lock access control, wireless occupancy sensing, BLE mesh lighting, and secure smart thermostat applications requiring stable component supply and long-term lifecycle assurance.
Supply support for K32W061Y 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with over 30 years of embedded systems expertise.
The K32W series targets ultra-low-power wireless edge devices, combining Arm Cortex-M4 performance with certified multi-protocol stacks and hardware security - designed specifically for battery-operated home/building automation endpoints.
FAQ
What wireless protocols does the K32W061Y natively support?
The K32W061Y natively supports Zigbee 3.0, Thread, and Bluetooth Low Energy 5.0 protocols through integrated hardware accelerators and certified software stacks. It does not require external coexistence circuitry due to its concurrent dual-radio architecture and antenna diversity control (ADE/ADO), enabling reliable operation in mixed 2.4 GHz environments like smart homes. The K32W061Y achieves this with a single Arm Cortex-M4 core and shared RF front-end.
Does the K32W061Y include an integrated NFC interface?
Yes, the K32W061Y includes an integrated NTAG I²C interface compliant with NFC Forum Type 2, accessible via dedicated LA/LB pins (Pins 39–40). This enables contactless provisioning, secure pairing, and firmware update triggers without external NFC controller. Unlike the K32W041, only the K32W061Y variant features this embedded NTAG - confirmed in Table 2 of the official NXP datasheet Rev. 1.3.
What is the lowest achievable power consumption mode for the K32W061Y?
The K32W061Y achieves 350 nA deep power-down current with wake-up capability via GPIOs - verified in Section 2.4 of the datasheet. This mode powers down the CPU, Flash, SRAM, and most peripherals while retaining state in selected registers and enabling interrupt-driven wake-up. It is distinct from sleep (1.2 µA) and deep-sleep (1.8 µA) modes, and is ideal for battery-powered sensors requiring multi-year operation on coin cells.
How many ADC channels does the K32W061Y support, and what is their resolution?
The K32W061Y supports eight 12-bit ADC input channels (ADC0–ADC7), with six physically routed to pins PIO14–PIO19 (Pins 17–23) and two internal (temperature/battery sensors). Maximum sampling rate is 190 ksamples/s with hardware support for continuous conversion, sequence scanning, and DMA-triggered transfers - enabling high-fidelity sensor data acquisition without CPU intervention.
What debug interface does the K32W061Y use, and what capabilities does it provide?
The K32W061Y uses Serial Wire Debug (SWD) with SWCLK (Pin 15) and SWDIO (Pin 16), supporting 8 hardware breakpoints and 4 watchpoints. It also includes Serial Wire Output (SWO) on PIO14/ADC0 (Pin 17) for real-time trace streaming. This interface enables non-intrusive debugging, flash programming, and runtime variable inspection - critical for developing certified Zigbee/Thread applications where timing-critical radio operations must remain uninterrupted.
K32W061Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- 802.15.4, Bluetooth
- Protocol:
- Bluetooth v5.0
- Modulation:
- -
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 2Mbps
- Power - Output:
- 11.2dBm
- Sensitivity:
- -101.3dBm
- Memory Size:
- 640kB Flash, 152kB SRAM
- Serial Interfaces:
- I2C, SPI, PWM, UART
- GPIO:
- 22
- Voltage - Supply:
- 1.9V ~ 3.6V
- Current - Receiving:
- 4.3mA
- Current - Transmitting:
- 7.4mA ~ 20.3mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 40-HVQFN (6x6)
K32W061Y FAQ
1.How can I place an order for K32W061Y through Aetrix?
Please submit a Request for Quotation (RFQ) for K32W061Y 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 K32W061Y reliable?
The price and inventory of K32W061Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for K32W061Y is usually 5 days.
3.What payment methods are accepted for K32W061Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for K32W061Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for K32W061Y?
K32W061Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your K32W061Y 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 K32W061Y?
For technical support, including K32W061Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your K32W061Y requirements.
6.How does Aetrix verify that K32W061Y is sourced from the original manufacturer or authorized distributors?
All K32W061Y 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 K32W061Y meets industry standards.
7.What is the process for return or replacement of K32W061Y?
All K32W061Y units undergo pre-shipment inspection (PSI). If there is an issue with K32W061Y, 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 K32W061Y part is unused and in its original packaging.
Return procedure for K32W061Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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