Network and Communication Chips from RS Components, Ltd.


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BT121 is a Bluetooth 4.1 Smart Ready compliant module that integrates a high performance Bluetooth radio, a low-power ARM Cortex microcontroller and a Bluegiga Bluetooth Smart Ready stack. This Smart Ready device provides simultaneous BR/EDR and BLE connectivity. , communicating with both Bluetooth Classic and Low-Energy enabled devices. The BT121 can be used with a separate host microcontroller, but user applications can also be embedded into the Flash microcontroller with the Bluegiga BGScript scripting language.
Bluetooth 4.1 Smart Ready compliant. Carrier Frequency: 2402 to 2480MHz over 78 channels. RF Output Power: +8dBm (BLE), +12dBm (BR/EDR). Receiver Sensitivity: -96dBm (BLE). OTA Data Rate: 1Mbps (SPP), 300kbps (iAP2), 100kbps (BLE). Up to 7 x BLE (Bluetooth Low Energy) connections. Integrated antenna. Embedded Bluetooth Smart Ready stack. SPP, iAP2, GATT over BR Bluetooth profiles. BGAPIâ„¢ serial protocol API over UART for modem usage. BGLIBâ„¢ host API/library which implements BGAPI serial protocol. BGScriptâ„¢ scripting language for standalone usage. 48MHz Cortex-M0 core microcontroller with 128KB Flash memory, 16KB RAM. Host communication: serial UART with RTS/CTS flow control. 2 x SPI, UART and 2 x I²C peripheral interfaces. Up to 22 x GPIO with interrupts. 4 x 12-bit ADC channels and 2 x 12-bit DAC channels. Real-Time-Clock. Power supply: +2.2V to +3.6Vdc. Operating temperature range: -40 to +85°C. Bluetooth, CE, FCC, IC, South-Korea and Japan qualified. Applications: Health & fitness, PoS (point-of-sales), M2M connectivity, Automotive aftermarket, Industrial & home automation gateways, Local communication for the Internet of Things (IoT)
Bluetooth Version = 1.3
Maximum Output Power = +14dBm
Receiver Sensitivity = -96dBm
Supported Bus Interfaces = ADC, DAC, GPIO, I2C, Microcontroller Programming Interface, Real-Time Clock, SPI, UART
Supported I/O Interfaces = RS232, Serial
Dimensions = 13.9 x 11 x 2.2mm
Height = 2.2mm
Length = 13.9mm
Maximum Operating Temperature = +85°C
Minimum Operating Temperature = -40°C


Silicon Labs
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Network and Communication Chips
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