The KW31Z from NXP Semiconductors is an ultra-low-power, highly-integrated SoC that enables Bluetooth low energy v4.2, Generic FSK (at 250, 500 and 1000 kbps) or IEEE Standard 802.15.4 RF connectivity for portable, extremely low-power embedded systems. This Wireless SoC integrates a 2.4 GHz transceiver supporting FSK/GFSK modulations, an Arm Cortex-M0+ CPU, up to 512 KB Flash and up to 128 KB SRAM, Bluetooth Low Energy Link Layer hardware, hardware security and peripherals optimized to meet the requirements of the target applications. This SoC is ideal for applications including 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.