Bluetooth Low Energy - Ultra-low power wireless connectivity for consumer medical, mobile accessories, sports and wellness applications

The market’s most flexible and cost-effective single-mode Bluetooth
low energy solution, Texas Instruments CC2540 2.4GHz Bluetooth
Low Energy System-on-Chip


Texas Instruments provides Bluetooth low energy solutions for sensor applications and mobile
handheld peripherals. TI’s Bluetooth low energy device for sensor applications is a true one-chip integrated solution. Combined with TI’s protocol stack, profile software and application support, the CC2540 forms the market’s most flexible and cost-effective single-mode Bluetooth low energy solution.

Bluetooth low energy technology

Bluetooth low energy technology offers ultra-low power state-of-the-art communication capabilities for consumer medical, mobile accessories, sports and wellness applications. Compared to classic Bluetooth capabilities, Bluetooth low energy technology is a connectionless protocol, which significantly reduces the amount of time the radio must be on. Requiring only a fraction of the power consumption of traditional Bluetooth technology, Bluetooth low energy can enable target applications to operate on a coin cell for more than a year.

TI Bluetooth low energy solutions – single mode and dual mode

TI provides Bluetooth low energy single- mode solutions for sensor applications and dual-mode solutions for mobile handheld devices. With both sides of the link, TI delivers a fully tested and robust Bluetooth low energy ecosystem.


CC2540 Bluetooth low energy system-on-chip

TI’s Bluetooth low energy solution for sensor applications includes the CC2540 2.4 GHz system-on-chip (SoC), TI protocol stack, profile software and application support.

The CC2540 is an ultra-low power, true one-chip integrated solution with controller, host and application on one device. The CC2540 combines an excellent RF transceiver with an industry-standard enhanced 8051 MCU. It includes peripherals to interface with analog and digital sensors, in-system reprogrammable flash memory, accurate RSSI function, full-speed USB 2.0 interface, integrated AES-128 encryption engine and many other powerful supporting features and peripherals.

The CC2540 enables robust master or slave nodes to be built with very low total bill-of-material costs. With very low power sleep modes and short transition times between operating modes, the CC2540 is suitable for systems where ultra-low power consumption is required.

The CC2540 comes in two different versions: CC2540F128/ F256 with 128 and 256 KB of flash memory, respectively. Combined with the Bluetooth low energy protocol stack, the CC2540F128/F256 forms the market’s most flexible and cost-effective single-mode Bluetooth low energy solution.

The CC2540 comes in a 40-pin 6mm x 6mm x 0.85mm QFN package.

Key Features CC2540 Bluetooth low energy sensor solution

● 8051 MCU - 128/256 KB in-system programmable Flash - 8 KB SRAM.
● Fully integrated radio - Bluetooth low energy (1Mbps GFSK).
● Digital peripherals - 21 GPIOs, 2 USART (UART or SPI), full speed USB 2.0,
　2x 16 bit, 2x 8-bit timers, dedicated link layer timer for Bluetooth low energy
　protocol timing, AES-128 encryption/decryption in hardware.
● Advanced analog peripherals - 8-channel, 8- to 12-bit delta-sigma ADC,
　ultra-low-power analog comparator, integrated high-performance op amp.
● Turnkey solution – 2.4 GHz system-on-chip, TI protocol stack, profile software
　and application support.
● Ultra-low power consumption –
　enables sensor applications to operate for >1 year on a coin cell battery.
● Leading RF performance –
　up to +97 dB link budget for long range. Excellent coexistence with other 2.4-GHz devices.
● One-chip integrated solution –
　controller, host and application on one 6mm x 6mm device reducing required PCB area.
　Applications can be written directly onto the CC2540, which supports both analog and
　digital peripherals.
● Flash-based and flexible device –
　firmware can be updated in the field and data can be stored on-chip.
● Single mode and dual mode –
　as a supplier of both single mode and dual mode Bluetooth low energy solutions,
　TI delivers fully tested and robust ecosystem solutions – from smart sensors to smart phones.