Texas Instruments New Bluetooth LE Wireless MCUs Make High-Quality RF and Power Performance More Affordable

By Tiera Oliver

Associate Editor

Embedded Computing Design

July 01, 2022

News

Texas Instruments New Bluetooth LE Wireless MCUs Make High-Quality RF and Power Performance More Affordable

Texas Instruments (TI) expanded its connectivity portfolio with a new family of wireless microcontrollers (MCU) that enable high-quality Bluetooth Low Energy (LE) 

Featuring standby current and radio-frequency (RF) performance, the SimpleLink Bluetooth LE CC2340 family is built on the foundation of TI’s wireless connectivity expertise. Pricing for the CC2340 family will start as low as $0.79, making it affordable for engineers to add Bluetooth LE connectivity to more products.

The CC2340R2 and CC2340R5 wireless MCUs, offering flash memory of 256KB and 512KB respectively, provide flexibility for engineers and ample space for application code. Additionally, with the proliferation of Bluetooth LE applications, designers need additional memory capacity to easily update software remotely. The new wireless MCU family features 36KB of RAM with over-the-air download support.

The new MCUs include a standby current of less than 830 nA, which according to the company is 40 percent lower than competing devices. The reduction in standby current is designed to extend battery life for up to 10 years on a coin cell battery in wireless applications such as electronic shelf labels and tire pressure monitoring systems. The CC2340 family also features an operating temperature range of –40ºC to 125ºC to help ensure a stable connection across applications, from industrial sensors and medical laboratories to outdoor environments such as EV chargers or smart meters.

Engineers are also able to expand RF performance and connection range with an output power up to +8 dBm. In addition, the CC2340 devices feature an integrated RF balun to enable a simpler design with fewer external components.

With the increased memory, longer battery life, and wider temperature range, engineers can enable more connected everyday applications such as:

  • Medical devices: In glucose meters, for example, the CC2340 MCUs’ standby current of less than 830 nA leads to an end-product shelf life of 18 to 24 months and two weeks of active Bluetooth LE operation on a coin cell battery.
  • Building automation: Smart-home hubs can take advantage of the CC2340 MCUs’ wireless protocol support and output power range up to +8 dBm.
  • Personal care: For products such as an electric toothbrush, the CC2340 wireless MCUs offer low power consumption in sleep mode, and can extend battery life.

To simplify implementation, engineers can connect with TI applications engineers through the TI E2E™ Bluetooth support forum. Engineers also have access to the proven, royalty-free Bluetooth LE software stack.

To get started with the CC2340 wireless MCUs, customers can request samples as well as a development kit (LP-EM-CC2340R5) priced at US$39. The new wireless MCUs are expected to be in volume production in the first half of 2023.

Pricing for the CC2340 family will start as low as US$0.79 for 1,000-unit quantities. 

The CC2340R2 and CC2340R5 wireless MCUs are the latest addition to the SimpleLink portfolio that provides innovative connectivity solutions to serve the industrial, automotive, and personal electronics markets.

For more information, visit: www.ti.com/wireless.

Tiera Oliver, Associate Editor for Embedded Computing Design, is responsible for web content edits, product news, and constructing stories. She also assists with newsletter updates as well as contributing and editing content for ECD podcasts and the ECD YouTube channel. Before working at ECD, Tiera graduated from Northern Arizona University where she received her B.S. in journalism and political science and worked as a news reporter for the university’s student led newspaper, The Lumberjack.

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