Silicon Labs’ BGM123 Blue Gecko Bluetooth® SIP Module has +3 dBm TX power is targeted for applications where ultra-small size, reliable high performance RF, low-power consumption and easy application development are key requirements. At 6.5 x 6.5 x 1.4 mm the BGM121 module fits applications where size is a constraint. BGM123 also integrates a high performance, ultra robust antenna, which requires minimal PCB, plastic and metal clearance. The total PCB area required by BGM123 is only 51 mm². The BGM123 also integrates a Bluetooth 4.2 compliant Bluetooth stack and it can also run end-user applications on-board or alternatively used as a network co-processor over one of the host interfaces.


Communication Products

089 / 614 503 60

  • Key features
  • Downloads
  • Videos
  • Manufacturer

Low Power Wireless System-on-Chip:

•   High Performance 32-bit 38.4 MHz ARM Cortex®-M4 with DSP instruction and floating-point unit for efficient signal processing

•   256 kB flash program memory

•   32 kB RAM data memory

•   2.4 GHz radio operation

•   3 dBm TX power

Low Energy Consumption:

•   9.0 mA RX current at 2.4 GHz

•   8.2 mA TX current @ 0 dBm output power at 2.4 GHz

•   63 μA/MHz in Active Mode (EM0)

•   2.5 μA EM2 DeepSleep current (full RAM retention and RTCC running from LFXO)

•   2.1 μA EM3 Stop current (State/RAM retention)

•   Wake on Radio with signal strength detection, preamble pattern detection, frame detection and timeout

High Receiver Performance:

•   -91 dBm sensitivity @ 1 Mbit/s GFSK (2.4 GHz)

Wide Operating Range:

•   1.85 V to 3.8 V single power supply

•   2.4 V to 3.8 V when using DC-DC

•   Integrated DC-DC

•   -40 °C to +85 °C

Support for Internet Security:

•   General Purpose CRC

•   Random Number Generator

•   Hardware Cryptographic Acceleration for AES 128/256, SHA-1, SHA-2 (SHA-224 and SHA-256) and ECC


•   6.5 mm x 6.5 mm x 1.4 mm

Wide Selection of MCU peripherals:

•   12-bit 1 Msps SAR Analog to Digital Converter (ADC)

•   2 × Analog Comparator (ACMP)

•   Digital to Analog Current Converter (IDAC)

•   32 pins connected to analog channels (APORT) shared between Analog Comparators, ADC, and IDAC

•   32 General Purpose I/O pins with output state retention and asynchronous interrupts

•   8 Channel DMA Controller

•   12 Channel Peripheral Reflex System (PRS)

•   2 × 16-bit Timer/Counter

•   3 + 4 Compare/Capture/PWM channels

•   32-bit Real Time Counter and Calendar

•   16-bit Low Energy Timer for waveform generation

•   32-bit Ultra Low Energy Timer/Counter for periodic wake-up from any Energy Mode

•   16-bit Pulse Counter with asynchronous operation

•   Watchdog Timer w/ dedicated RC oscillator @ 50 nA

•   2 × Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I²S)

•   Low Energy UART (LEUART™)

• I²C interface with SMBus support and address recognition in EM3 Stop


Silicon Labs mission is to design and deliver easy-to-use, wireless connectivity solutions for OEMs, device manufacturers and system integrators. We supply a wide range of Bluetooth and Wi-Fi modules in order to serve industry leaders and start-ups in all sectors: beacons, consumer electronics, health and wellness, automotive aftermarket, sports and fitness, M2M and industrial. Silicon Labs understands that certified, high performance radios are key to your application's success, and our passion is building trusted relationships with our customers that span the entire product life cycle.


Contact HY-LINE

Helpdesk 089 / 614 503 60