Microchip Technology SMART SAM B11 BLE 4.1 SoC

Microchip SAM B11 Ultra-low-power Bluetooth® SMART (BLE 4.1) SoC integrates an MCU, Power Management Unit (PMU), transceiver, modem, MAC, PA, and TR switch. The device acts as a standalone Cortex®-M0 applications processor with BLE connectivity and embedded Flash memory. The dedicated ROM stores the qualified Bluetooth Smart protocol stack. The SAM B11 SoC firmware features L2CAP service layer protocols. The L2CAP service layer protocols include Security Manager, Attribute protocol (ATT), Generic Attribute Profile (GATT), and the Generic Access Profile (GAP). In addition, the protocol stack includes and supports application profiles such as proximity, thermometer, heart rate, and blood pressure.


  • Complies with Bluetooth® V4.1, ETSI EN 300 328 and EN 300 440 Class 2, FCC CFR47 Part 15 and ARIB STD-T66
  • BLE4.1 SoC with fully embedded stack (link and host layer, including ATT/GATT/GAP) in ROM (128KB)
  • Cortex M0-based MCU with 128KB RAM and 256KB Flash (stacked die with SPI interface)
  • Onboard ADC (11b) and PWM generator and general-purpose timers
  • Superior sensitivity (-96dBm) and range (TX pout = 4dBm max)
  • Ultra-low power consumption in advertising, connection, scanning modes
  • <3mA TX peak current @ 3.6V, 0dBm pout 
  • <4mA RX peak current @ 3.6V
  • <1uA sleep current with 8KB RAM retention and RTC
  • Advertise mode
    • >4-year battery life with CR2032 coin cell battery when advertising every 1-second as a beacon
  • SPI, UART, and I²C as host interfaces
  • Integrated PMU with buck DC/DC allows for vbat range of 2.3V to 3.6V


  • Building automation 
    • Comfort and control
    • Fire and security
  • Home appliances
    • Cooking
    • Refrigeration
    • Washing
  • Home Entertainment
    • Remote control
  • Industrial automation
    • Human-machine interface
    • Industrial communications
    • Instruments
    • Sensors
  • Mobile electronics
    • GPS for fleet management, asset-, vehicle-, and personal-tracking
  • PC peripherals
    • PC accessories
    • PC peripherals - small I/O devices

SAM B11 Block Diagram

Block Diagram - Microchip Technology SMART SAM B11 BLE 4.1 SoC
Published: 2016-06-24 | Updated: 2022-03-11