MKW21D512VHA5

MKW21D512VHA5 is an NXP Freescale Kinetis KW2x wireless microcontroller. It combines a 32-bit ARM-based MCU core with an integrated 2.4 GHz IEEE 802.15.4 radio (ZigBee/Thread), making it suitable for IoT wireless nodes and mesh networks.
Key points:
- Core: 32-bit ARM Cortex-based MCU
- Wireless: On-chip 2.4 GHz transceiver for IEEE 802.15.4
- Memory: 512 KB flash; on-chip RAM in the low-to-mid hundreds of KB range (typical ~128 KB)
- Peripherals: GPIO, timers, ADC/DAC, serial interfaces (UART, SPI, I2C), USB Full-Speed, DMA, PWM, etc. Support for low-power operating modes
- Use cases: Wireless sensor nodes, home automation, industrial IoT, mesh networks
- Development: Supported by MCUXpresso/SDK and standard ARM toolchains
For exact specs (RAM size, voltage, pinout, package), consult the official datasheet and reference manuals.

Here are the key features of MKW21D512VHA5 (Kinetis Wireless MCU):
- CPU: ARM Cortex-M0+ core up to 48 MHz
- Memory: 512 KB flash, 128 KB RAM
- Wireless: integrated 2.4 GHz IEEE 802.15.4 transceiver (ZigBee/Thread/6LoWPAN capable)
- Peripherals: GPIO, multiple timers, PWM, UART, I2C, SPI
- Analog: 12-bit ADC, analog comparator
- Crypto: hardware cryptography engine (AES/DES) and TRNG
- DMA and flexible clocking architecture
- Debug/Programming: SWD/JTAG support
- Power: multiple low-power modes with fast wake and wireless wakeup
- Package: 64-pin LQFP/QFN; industrial temperature range (-40 to 105°C)
- Other: boot ROM and secure boot options; nominal supply 1.8–3.3 V
Note: exact pinout and peripheral counts may vary by package; consult the datasheet for details.

- Pin count: 144-pin LQFP
- Function: Kinetis MKW21D512VHA5 is a 32-bit ARM Cortex-M0+ microcontroller with an integrated 2.4 GHz wireless transceiver (IEEE 802.15.4 / ZigBee) in the KW2x family, intended for IoT/wireless applications.

- Manufacturer: NXP Semiconductors (the line originated with Freescale Semiconductor; now part of NXP).
- Company type: A Dutch multinational semiconductor company that designs and manufactures embedded processors, microcontrollers, and other electronics components for automotive, industrial, and consumer markets.

MKW21D512VHA5 is a Kinetis Wireless MCU with an integrated 2.4 GHz transceiver (IEEE 802.15.4/ZigBee/Thread). Common application areas:
- Smart home and building automation (lighting, HVAC, security sensors)
- Industrial IoT sensor nodes and remote monitoring
- Wireless mesh networks and gateways for ZigBee/Thread
- Smart energy meters and utility devices
- Consumer electronics needing low-power wireless connectivity
- Asset tracking and environmental monitoring systems

64-pin LQFP (Quad Flat Package).