Note: K32W061/41 is preferred for any new Zigbee®, Thread and Bluetooth® LE 5.0 design. No new software releases planned
The KW40Z is a highly-integrated single-chip device that enables Bluetooth® Smart/Bluetooth® Low Energy v4.1 and IEEE® 802.15.4-2011 RF connectivity for portable, extremely low-power embedded systems. Applications include portable healthcare devices, wearable sports and fitness devices, AV remote controls, computer keyboards and mice, gaming controllers, access control, security systems, smart energy and home area networks.
The KW40Z MCU integrates a 2.4 GHz transceiver supporting a range of FSK/GFSK and O-QPSK modulations, an Arm® Cortex®-M0+ CPU, 160 KB Flash and 20 KB SRAM, Bluetooth Low Energy Link Layer hardware, 802.15.4 packet processor, hardware security and peripherals optimized to meet the requirements of the target applications. The KW40Z has enough on-chip memory to concurrently run both a Bluetooth Low Energy stack and an IEEE 8021.5.4 MAC/PHY for multi-mode applications.
| Part Number | Wireless Connectivity Protocol | Package Size | Hardware Development Tool |
| MKW40Z160VHT4 | Bluetooth Low Energy and IEEE 802.15.4 | 7 mm x 7 mm x 1 mm 48-pin Laminate QFN | FRDM-KW40Z USB-KW40Z |
| MKW30Z160VHM4 | Bluetooth Low Energy | 5 mm x 5 mm x 1 mm 32-pin Laminate QFN | |
| MKW20Z160VHT4 | IEEE 802.15.4 | 7 mm x 7 mm x 1 mm 48-pin Laminate QFN |
MCUXpresso Config Tools – A comprehensive suite of system configuration tools, including pins, clocks, SDK builder and more.
MCUXpresso SDK – An open-source software development kit (SDK) built specifically for your processor and evaluation board selections.
MCUXpresso IDE – An easy-to-use integrated development environment (IDE) for creating, building, debugging, and optimizing your application.
Kinetis Connectivity Software Version 1.0.1 includes the following components:
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Quick reference to our documentation types.
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