MKW21D256VHA5R

The Kinetis KW2x wireless MCU provides a low-power, compact integrated device for smart energy 1.x, home automation, healthcare, and RF4CE, as well as the ZigBee IP network stack and the smart energy 2.0 application profile. Supports a broad range of applications Provides enough memory to run complicated protocol stacks and user applications on a single IC Protects code and data from unauthorized access or modification Enables a set of specialized operations to improve throughput of encryption/decryption operations Significantly reduces power consumption and extends battery life Smaller size and low component count reduces cost

Processing Performance

• Up to 50 MHz Cortex-M4 core with 16-channel-DMA

Memory

• 512 KB Flash and 64 KB RAM or
• 256 KB Flash and 32 KB RAM with:
  • 64K FlexNVM (MKW21D256 only) and
  • 4k bytes of enhanced EEPROM/FlexRAM

Connectivity

• SPI (1)
• UART (2)
• I²C (2)
• USBFS OTG (KW22 and KW24)

Mixed Signal

• 8-channel 16-bit SAR ADC
• 6-bit DA

Security and tamper detect

• Cryptography Acceleration Unit (CAU)
• AES encryption (FIPS 140)
• External tamper detect
• 32-bit CRC

RF Features

• Highly integrated 2.4 GHz RF transceiver
• 802.15.4 Packet processor
• Supports single ended and diversity antennas
• Dual PAN support
• Programmable output power -30 to +8 dBm
• Sensitivity -102 dBm
• TX 17mA @ 0dBm (CPU sleep)
• RX 19mA (CPU sleep)

Low Power operation