Housed in 2.1 x 2.1 mm WLCSP package, Model BTLC1000 is intended for IoT and wearable markets, including portable medical, activity trackers, HMI devices, gaming controllers, and beacons. Bluetooth Smart link controller IC connects as companion to any Atmel AVR or Atmel | SMART MCU through UART or SPI API requiring minimal resource on host side. Both devices are fully integrated with self-contained Bluetooth Smart controller and stack enabling wireless connectivity to be quickly implemented.