MKW21D256VHA5 Family Name, NXP MKW21D256VHA5 ARM Cortex M4 Microcontroller, Kinetis W, 50MHz, 256 kB Flash, 56-Pin LGA

Kinetis KW Series Wireless Microcontrollers
The Kinetis KW2xD Series of BLE/IEEE 802.15.4 compliant wireless microcontrollers are cost-effective, low power SoCs incorporating a 2.4GHz radio transceiver and an ARM Cortex-M4 core processor. The KW01Z Series feature a Sub-1GHz transceiver and a Cortex-M0+ core processor. Applications for the KW Series microcontrollers include Smart Meters, networked building control, home automation, healthcare/medical monitoring, industrial monitoring/control and local communication for the Internet of Things (IoT).
KW2xD Series/2.4GHz BLE/IEEE 802.15.4 compliant RF transceiverSuitable for ISM and MBAN band operation50MHz ARM Cortex-M4 core processorRF Power Output: Up to +8dBmReceiver Sensitivity: -102dBm @ 250kbpsModulation OQPSKOTA data rate: 250kbps over 1 of 16 selectable channelsSupports Clear Channel Assessment (CCA), Energy Detection (ED) and Link Quality Indicator (LQI)\nEmbedded profiles: Smart Energy 1.x, Home Automation, Healthcare, RF4CENetwork stack based on ZigBee ProSerial Communication: USB OTG (MKW22 only) SPI, I²C, UARTPower supply: +1.8V to +3.6VdcKW01Z Series/Sub-1GHz ISM-Band RF transceiver48MHz ARM Cortex-M0+ core processor with 128KB Flash memory, 16KB RAMRF Power Output: Up to +17dBmReceiver Sensitivity: -120dBm @ 1.2kbpsModulation: FSK, GFSK, MSK, GMSK and OOKOTA data rate: Up to 600kbpsPacket engine with CRC, AES-128 encryption and 66-byte FIFOSerial Communication: SPI, I²C, UARTPower supply: +1.8V to +3.6VdcRS Product Codes/a href=\"/web/p/products/8263502\""826-3502/a MKW21D256VHA5 256KB Flash memorya href=\""/web/p/products/8263505\""826-3505/a MKW21D512VHA5 512KB Flash memorya href=\""/web/p/products/8263509\""826-3509/a MKW22D512VHA5 512KB Flash memory, USB OTGa href=\""/web/p/products/8263518\""826-3518/a MKW01Z128CHN 128KB Flash memory
The Kinetis range of ARM Cortex core microcontrollers consists of multiple hardware- and software-compatible Cortex-M0+ and Cortex-M4 MCU families with exceptional low-power performance, memory scalability and feature integration. Families range from the entry-level Cortex-M0+ Kinetis L Series to the high-performance, feature-rich Cortex-M4 Kinetis K and include a wide selection of analogue, communication, HMI, connectivity and security features.