NXP Semiconductors IEEE 802.15.4 and Bluetooth Low Energy 5.0 wireless MCU K32W041A/K32W041AM K32W041A/K32W041AM IEEE 802.15.4 and Bluetooth LE 5.0 wireless microcontroller Rev. 1.1 June 2021 Objective data sheet 1. General description The K32W041A/K32W041AM are ultra-low power, high performance Arm Cortex -M4 based wireless microcontrollers supporting Zigbee 3.0, Thread and Bluetooth Low Energy 5.0 networking stacks to facilitate home and building automation, smart lighting, smart locks and sensor network applications. 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. Ultra-low current consumption in both radio receive and transmit modes and also in the power down modes allow use of coin cell batteries. The product has 640 KB embedded Flash, 152 KB RAM memory and extend the radio output power to +15dBm. The K32W041AM has an additional 1 MB Data Flash. The embedded flash can support Over The Air (OTA) code download to applications. The devices include a 10-channel PWM, two timers, one RTC/alarm timer, a Windowed 2 Watchdog Timer (WWDT), two USARTs, two SPI interfaces, two I C 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 that offers system enhancements such as low power consumption, enhanced debug features, and a high level support of the block integration. The Arm Cortex-M4 CPU, operates at up to 48 MHz. 2. Features and benefits 2.1 Benefits Very low current solution for long battery life Single chip device to run stack and application System BOM is low in component count and cost Flexible sensor interfacing Package 6 6 mm HVQFN40, 0.5 mm pitch Lead-free and RoHS compliant Ambient temperature range: 40 C to +85 C 2.2 Radio features 2.4 GHz IEEE 802.15.4 2011 compliant 2.4 GHz Bluetooth Low Energy 5.0 compliant K32W041A/K32W041AM All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 1.1 June 2021 1 of 115 32W41AMNXP Semiconductors IEEE 802.15.4 and Bluetooth Low Energy 5.0 wireless MCU K32W041A/K32W041AM Receiver current: 7.0 mA IEEE 802.15.4 Receiver sensitivity -100 dBm Bluetooth Low Energy 5.0 2 Mb/s high data rate Bluetooth Low Energy Receiver sensitivity -97 dBm for 1 MB/s Improved co-existence with WiFi Configurable transmit power up to +15 dBm, with 46 dB range Transmit power / current +15 dBm / 51 mA +10 dBm / 26 mA +3 dBm /13 mA +0 dBm / 10.2 mA Supply voltage 2.4 V to 3.6 V Antenna Diversity control 32 MHz XTAL cell with internal capacitors, able with suitable external XTAL to meet the required accuracy for radio operation over the operating conditions Integrated RF balun Integrated ultra Low-power sleep oscillator Deep Power-down current (with wake-up on IO) 350 nA (K32W041A) 360 nA (K32W041AM) 128-bit, 192-bit or 256-bit AES security processor MAC accelerator with packet formatting, CRCs, address check, auto-acks, timers 2.3 Microcontroller features Application CPU, Arm Cortex-M4 CPU: Arm Cortex-M4 processor, running at a frequency of up to 48 MHz. Arm built-in Nested Vectored Interrupt Controller (NVIC) Memory Protection Unit (MPU) Non-maskable Interrupt (NMI) with a selection of sources Serial Wire Debug (SWD) with 8 breakpoints and 4 watchpoints System tick timer Includes Serial Wire Output for enhanced debug capabilities. On-Chip memory 640 KB flash, K32W041AM has an additional 1 MB data flash 152 KB SRAM 12 MHz to 48 MHz system clock speed for low-power 2 x I2C-bus interface, operate as either master or slave 10 x PWM on K32W041A and 9 x PWM on K32W041AM 2 x Low-power timers 2 x USART, one with flow control 2 x SPI-bus, master or slave K32W041A/K32W041AM All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 1.1 June 2021 2 of 115