Ny chip understøtter både Bluetooth LE og NFC
Toshiba lancerer low power Bluetooth Smart devices med integreret NFC Tag funktioner (in english).
Toshiba Electronics Europe (TEE) has launched a low power consumption, dual-function IC that supports both Bluetooth Low Energy (LE) communications and NFC Type 3 Tag functions. TC35670FTG has been designed for use in Bluetooth Smart devices such as sensors, toys and, most notably, touch-and-start smartphone accessories and wearable healthcare devices.The new IC joins Toshiba's line-up of Bluetooth LE ICs, and offers two key features: easy operation of Bluetooth pairing with NFC Tag function; low energy stand-by status to increase battery lifetimes for devices powered by small coin-cell batteries.
The device achieves peak power consumption of 5.9mA for Bluetooth® communication (@3.3V, -4dBm transmitter output power or receiver operation) and just 600µA or lower for NFC Tag communication (@3.3V). It also achieves power consumption of just 0.1µA or lower in deep sleep[4] (@3.3V).
Previously, component specifiers had to integrate ICs for both Bluetooth and NFC Tag when designing a system supporting both communication functions. Toshiba's new approach offers a design that will help to minimize the part counts, reduce the assembly area by about 30% and shorten system development timelines.
The NFC Tag function, can enable easy pairing of Bluetooth LE devices as well as provide a convenient on/off switch function which reduces stand-by power drain and contributes to longer battery life. In addition, both the Bluetooth LE and NFC Tag functions can be put in stand-by mode and the connection from the first function accessed can be prioritised.
The Bluetooth component has a receiver sensitivity of -92.5dBm and the transmitter output power of between 0dBm to -20dBm (4dB steps). It supports GATT (Generic Attribute Profile) including both client and server functions. It also supports host-based and stand-alone systems, and features DC-DC converter, low drop regulator, general purpose ADC, user program function, wake up signal for host device and PWM function.
TEE also offers various BLE standard profiles to be used in combination with application programming.
The NFC Tag component has a 1.5 Kbyte E2PROM for storing data that component specifiers can access using both the Bluetooth LE and NFC Tag to connect to each I2C interface, allowing data to be easily handled in each system.
The IC is available on a QFN40 package measuring 6mm x 6mm, 0.5mm pitch and supports an operating temperature range of -30°C to 85°C. Starter kits and software deployment packages will be available this month.
