New Bluetooth Low Energy ICs Provide Enhanced Security Functions for IoT

Toshiba has announced the launch of two new ICs for Bluetooth Low Energy (LE) ver.4.2. The TC3567CFSG and TC3567DFSG are low power ICs with lower current consumption than their previous products while offering an enhanced security functions. The new ICs, like previous products, realize a peak current consumption of 3.3 mA with a 3 V supply in transmission mode by adopting a highly efficient DC-DC converter and an original low-power circuit design. They are also able to acquire a random number with a length of up to 32 bytes, using a random number generator, newly incorporated as hardware, a function that will help to strengthen the information security of IoT products.

TC3567CFSG incorporates of 128 KB Flash ROM for storing user programs and various data in stand-alone operations, and can execute an approximately 50 KB application program at maximum. As in the previous products, integration of an RF matching circuit and crystal load capacitors for a clock generator reduce the external component count during IC design, and in the minimal case only seven components are required for set development. This contributes to reductions in cost and mounting area.

TC3567DFSG has no built-in Flash ROM and achieves extremely low current operation by reducing the current consumption required for access to Flash ROM. This allows it to achieve long operating times for applications powered by small coin batteries. For example, using a CR2032 type coin battery, the new IC can carry out beacon operation for over two years.

The new ICs will facilitate adoption of Bluetooth LE communications for IoT products that require a high level of security, including wearable devices for healthcare applications and high-grade small devices that use coin batteries, such as sensors and toys. They will support set makers in optimizing product value.

 Key Features:

  • Low power consumption:
    • 3.3mA (Transmitter operation @3.0V, Output Power: 0dBm)
    • 3.3mA (Receiver operation @3.0V)
    • Approximately 50nA in deep sleep (@3.0V)
  • Receiver sensitivity: -93.5dBm
  • Supports Bluetooth® LE ver.4.2 central and peripheral devices
  • Built-in GATT (Generic Attribute Profile)
  • Supports servers and client functions defined by GATT
  • Random number generator
  • Built-in 128KB Flash ROM (TC3567CFSG)

Applications: Bluetooth Smart devices, such as wearable devices, healthcare devices, IoT products that support information security, remote controllers and toys.

Samples of these IC are ready for shipment.


  • Country: United States
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