Toshiba Launches Low Power Consumption ICs for Bluetooth® Smart Communication Devices with NFC Tag functions

Incorporating Two Kinds of Communication Functions for Wearable Healthcare Low Power Devices

TOKYO — (BUSINESS WIRE) — September 24, 2014Toshiba Corporation (TOKYO:6502) today announced the launch of “TC35670FTG”, a low power consumption dual function IC that supports both Bluetooth® Low Energy (LE)[1] communications and NFC Type 3 Tag. Sample shipments start today.

Toshiba launches low power consumption ICs "TC35670FTG" for Bluetooth(R) Smart communication devices ...

Toshiba launches low power consumption ICs "TC35670FTG" for Bluetooth(R) Smart communication devices with NFC Tag functions (Photo: Business Wire)

Recently, more and more Bluetooth® Smart[2] devices offer Bluetooth® LE compatibility. The new IC joins Toshiba’s line-up of Bluetooth® LE ICs, and offer two key features: easy operation of Bluetooth® pairing with NFC Tag function; long-time stand-by status for devices powered by small coin-cell batteries. The IC will facilitate adoption of Bluetooth® LE communications in small devices, such as wearable healthcare devices, sensors, toys and, most notably, future touch and start smartphone accessories.

Previously, set makers 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.

The NFC Tag component has a 1.5 Kbyte E2PROM for storing data that set makers can access using both the Bluetooth® LE and NFC Tag to connect each I2C interfaces, allowing data to be easily handled in each system.

These functionalities allow the new device to support three ways of use:
1.  

Put both Bluetooth® LE and NFC Tag in stand-by mode and prioritize the connection from the 1st access.

2. By adding NFC Tag function, easy pairing of Bluetooth® LE devices can be realized and a long time stand-by status can be maintained.
3. The NFC Tag can provide a system on/off switch function, and cut off the hardware switch from a lot of devices that are required to reduce stand-by power.
 

Key Features of the New Product

  • Low power consumption:
    • Below 5.9mA at peak consumption of Bluetooth® communication (@3.3V, -4dBm transmitter output power or receiver operation)
    • Below 600μA for NFC Tag communication (@3.3V)
    • Below 0.5μA in deep sleep (@3.3V)[3]
  • Receiver sensitivity: -92.5dBm
  • Supports Bluetooth® LE central and peripheral devices
  • Supports servers and client functions defined by GATT (Generic Attribute Profile)
  • NFC Forum Type 3 Tag

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