K32W041AM/A: High Performance, Secure and Low-Power MCU for Zigbee®, Thread™ and Bluetooth® LE 5.0 with High Tx Power Option

K32W041AM-A

The K32W0x portfolio is designed to power the next generation of ultra-low-current multiprotocol wireless IoT devices with support for Matter, IEEE 802.15.4 mesh network protocols Zigbee and Thread and Bluetooth Low Energy 5.0. The K32W041AM/A are compatible with the K32W061/41.

The K32W041AM and K32W041A family members support longer range and expanded memory optimized to facilitate home and building automation, smart lighting, smart locks, gateways, and routers.

The K32W041A/K32W041AM includes a 2.4 GHz Bluetooth Low Energy 5 (supporting eight simultaneous connections) compliant transceiver, a 2.4 GHz IEEE 802.15.4 compliant transceiver and a comprehensive mix of analog and digital peripherals. With 640 KB embedded Flash, 152 KB RAM memory, additional 1 MB data Flash with the K32W041AM, and support for Over-the-Air (OTA) updates, the K32W0x family provides scalability to address a variety of memory requirements. In addition, the K32W041AM/A extends the wireless radio output power to +15dBm.

These devices include a 10-channel PWM, two timers, one RTC/alarm timer, a Windowed Watchdog Timer (WWDT), two USARTs, two SPI interfaces, two I2C interfaces, a DMIC subsystem including a dual-channel PDM microphone interface with voice activity detector, one 12-bit ADC, temperature sensor and a comparator. The Arm Cortex-M4 is a 32-bit core operating at u to 48MHz that offers system enhancements such as low power consumption, enhanced debug features, and a high-level support of the block integration.

Devices across the K32W0x, JN18x and QN90x0 families are supported with common software stacks: Zigbee, OpenThread and Bluetooth LE.

For additional information and sample availability, contact your local Sales Office.

Product Details

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Block Diagram

K32W041AM/A Block Diagram

K32W041AM/A Block Diagram
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Features

CPU and Memory

  • Up to 48 MHz Cortex-M4
  • 640 KB flash, 1 MB Data Flash (K32W041AM), 152 KB RAM and 128 KB ROM
  • Quad-SPI for data storage in external NVM (K32W041A)

RF Performance /Power Consumption

  • Support of Zigbee 3.0, Thread, and IEEE 802.15.4 and Bluetooth Low Energy 5.0
  • 100 dBm RX sensitivity
  • Up to +15 dBm TX power
  • RX 4.3 mA, DC/DC on at 3V
  • TX 12.1 mA @ 0dBm
  • Numerous and flexible low-power modes, power down mode current < 1uA
  • Bluetooth LE 5.0 with 2 Mbps and up to 8 simultaneous connections
  • Improved Wi-Fi co-existence

Security

  • AES256 with hardware protected key
  • Hash engine (SHA256)
  • Random number generator
  • Code readout protection

Digital and Analog Interfaces

  • 2 x UART/SPI/I2C up to 2
  • ISO7816 interface for secure access module
  • 8 ch 12-bit ADC
  • 1 analog comparator
  • Battery and temperature sensors
  • Digital microphone interface and audio event detection

Clocks and Timers

  • 32 MHz and 32.768 kHz crystals
  • Low and high frequency internal clock sources
  • 4 x general purpose timer
  • 32 K sleep timer
  • Watchdog timer
  • RTC with calibration

Operating Conditions

  • Operating voltage: 2.4 to 3.6 V
  • Junction Temperature range: -40 to 85 °C

Part numbers include: K32W041A, K32W041AM.

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