The CC2541 Bluetooth low-energy SoC from Texas Instruments (TI) Inc., Dallas, TX, supports for Bluetooth sensor applications for consumer medical, sports and fitness, security, entertainment, and home automation. The device is a 2.4 GHz radio with free protocol stack, profile software, sample applications, development kits, and technical documents and support. You can write applications directly onto the CC2541; update firmware in the field; and store persistent data on-chip. Features include coexistence with other 2.4 GHz devices, link budget up to 99 dB, 18.5 mA transmit current at 0 dBm, current draw as low as 14 mA when using the company's TPS62730 step-down converter, support for Bluetooth version 4.0, and proprietary modes at 250 Kbps, 500 Kbps, 1 Mbps, and 2 Mbps.
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