MKW21D256VHA5

The MKW21D256VHA5 is a 32-bit Kinetis low power Wireless Microcontroller based on ARM Cortex-M4 RISC architecture core with integrated IEEE 802.15.4 radio. The device consists of a high-performance 2.4GHz IEEE 802.15.4 compliant radio transceiver and a powerful ARM Cortex-M4 MCU system with connectivity and precision mixed signal analog peripherals. The device incorporates 256kB internal flash, 32kB internal RAM, one 16-bit SAR A/D converter, one 6-bit D/A converter and 29 general-purpose I/O pins. This device also features communication interfaces like three UART modules, one SPI module and two I2C modules.

• ARM Cortex-M4 Core at 50MHz (1.25 MIPS/MHz)
• Nested vectored interrupt controller (NVIC)
• Asynchronous wake-up interrupt controller (AWIC)
• Debug and trace capability
• 2-pin Serial wire debug (SWD)
• IEEE 1149.1 Joint test action group (JTAG)
• IEEE 1149.7 compact JTAG (cJTAG)
• Trace port interface unit (TPIU)
• Flash patch and breakpoint (FPB)
• Data watchpoint and trace (DWT)