Kinetis® W Series
W0x Sub-1 GHz
Kinetis® KW0x-48 MHz, Sub-1 GHz Wireless Radio Microcontrollers (MCUs) based on Arm® Cortex®-M0+ Core
The Kinetis® KW0x wireless MCU family embeds a rich set of peripherals with a high-performance bi-directional sub-1 GHz radio, capable of operating over a wide frequency range in the license free industrial, scientific and medical (ISM) frequency bands.
KW2xD IEEE 802.15.4
Kinetis® KW2xD-2.4 GHz 802.15.4 Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M4 Core
The Kinetis® KW2xD wireless MCU provides a low-power, compact device with integrated IEEE 802.15.4 radio, targeting control and monitoring applications for home and building automation including appliances, access control, climate control, energy management, lighting, safety and security. The KW2xD supports Thread, a lightweight, low latency IPv6 mesh networking stack, specifically designed to meet the requirements of next generation wireless networks. 
KW20Z IEEE 802.15.4
Kinetis® KW20Z-2.4 GHz 802.15.4 Wireless Radio Microcontroller based on Arm® Cortex®-M0+
The KW20Z is an ultra low-power, highly-integrated single-chip device that enables IEEE® 802.15.4-2011 RF connectivity for portable, extremely low-power embedded systems. Applications include portable health care devices, access control, security systems, smart energy and home area networks.
KW21Z IEEE 802.15.4
Kinetis® KW21Z-2.4 GHz 802.15.4 Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M0+ Core
The KW21Z is an ultra-low-power, highly-integrated single-chip device that enables IEEE® 802.15.4 RF connectivity for portable, extremely low-power embedded systems. Applications include portable healthcare devices, access control, security systems, smart energy and home area networks.
KW30Z Bluetooth Low Energy
Kinetis® KW30Z-2.4 GHz Bluetooth Low Energy (BLE 4.1) Microcontroller based on Arm® Cortex®-M0+
The KW30Z is an ultra low-power, highly-integrated single-chip device that enables Bluetooth® Smart/Bluetooth® Low Energy (BLE) v4.1 RF connectivity for portable, extremely low-power embedded systems. Applications include portable health care devices, wearable sports and fitness devices, AV remote controls, computer keyboards and mice, gaming controllers and access control.
KW31Z Bluetooth Low Energy
Kinetis® KW31Z-2.4 GHz Bluetooth Low Energy (BLE) Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M0+ Core
The KW31Z is an ultra-low-power, highly-integrated single-chip device that enables Bluetooth® low energy (BLE) v4.2 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.
KW40Z Bluetooth Low Energy and IEEE 802.15.4
Kinetis® KW40Z-2.4 GHz Dual Mode: BLE and 802.15.4 Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M0+ Core
The KW40Z is a highly-integrated single-chip device that enables Bluetooth® Smart/Bluetooth® Low Energy (BLE) 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.
KW41Z Bluetooth Low Energy and IEEE 802.15.4
Kinetis® KW41Z-2.4 GHz Dual Mode: BLE and 802.15.4 Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M0+ Core
The KW41Z is an ultra-low-power, highly-integrated single-chip device that enables Bluetooth® low energy (BLE) v4.2 and IEEE® 802.15.4 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.