The ATBTLC1000-MR110CA is an ultra-low power Bluetooth® Low Energy (BLE) module with IntegratedThe ATBTLC1000-MR110CA is an ultra-low power Bluetooth® Low Energy (BLE) module with IntegratedTransceiver, Modem, MAC, PA, TR Switch, and Power Management Unit (PMU). It can be used as aBluetooth Low Energy link controller or data pump with external host MCU.The qualified Bluetooth SIG protocol stack is stored in dedicated ROM. The firmware includes L2CAPservice layer protocols, Security Manager, Attribute protocol (ATT), Generic Attribute Profile (GATT), andthe Generic Access Profile (GAP). Additionally, application profiles such as Proximity, Thermometer,Heart Rate, Blood pressure and many other SIG-defined profiles.The ATBTLC1000-MR110CA is a fully-certified module that contains the ATBTLC1000A-MU (QFN),ceramic high-gain chip antenna, 26 MHz crystal, and PMU circuit. The module needs an external 32 kHzclock or crystal to power-up.Microchip BluSDK offers a comprehensive set of tools including reference applications for severalBluetooth SIG defined profiles and a custom profile. The BluSDK helps the user to quickly evaluate,design and develop BLE products with ATBTLC1000-MR110CA.The ATBTLC1000-MR110CA module has passed the Bluetooth SIG certification for interoperability withthe Bluetooth Low Energy 5.0 specification.