The SmartConnect SAM B11 family of products from Microchip Technology are ultra-low power, fully certified Bluetooth SMART (BLE 4.1) SoC and SiP devices, integrated with a 32-bit microcontroller (MCU), transceiver, modem, MAC, PA, TR switch, and power management unit (PMU). The SAM B11 uses an innovative radio and DSP architecture that delivers extremely low power consumption along with high performance. It is a standalone applications processor with 256 KB of Flash memory and embedded BLE connectivity. The SAM B11 SiP products also provide an embedded 26 MHz crystal oscillator and single-wire antenna connection in an even smaller form factor. The qualified BLE 4.1 protocol stack is stored in dedicated ROM and includes L2CAP service layer protocol, security manager, attribute protocol (ATT), generic attribute profile (GATT), and the generic access profile (GAP). Application profiles such as proximity, thermometer, heart rate, blood pressure, and many others are supported and included in the protocol stack. BluSDK Smart supports application profiles such as proximity, thermometer, heart rate, blood pressure, and many others for medical applications. The SAM B11 has the lowest power consumption currently available in the market.