Toshiba’s New ICs for Bluetooth® Smart Devices Offer the Industry’s Lowest Class Current Consumption and Enhanced Security

Business Wire India

Toshiba Corporation's (TOKYO:6502) Storage & Electronic Devices Solutions Company today announced the launch of two new ICs, "TC3567CFSG" and "TC3567DFSG," that match industry leading [1] low current consumption realized by previous products[2] while offering an enhanced security function. The new ICs are the latest additions to Toshiba's line-up of ICs supporting Bluetooth® Low Energy (LE)[3] ver.4.2 communications. Sample shipments start today.


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Toshiba: "TC3567CFSG" and "TC3567DFSG," the new ICs supporting Bluetooth(R) low energy ver.4.2 communications with an enhanced security function (Photo: Business Wire)

The new ICs, like previous products, realize a peak current consumption of 3.3mA at 3V voltage 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 128KB Flash ROM for storing user programs and various data in stand-alone operations, and can execute an approximately 50KB 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[4].


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)

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



Main Specifications

Part Number TC3567CFSG TC3567DFSG
Operating voltage range 1.9V to 3.6V 1.8V to 3.6V
Current consumption in TX operation 

3.3mA (@3.0V, Output Power: 0dBm)

Current consumption in RX operation 3.3mA (@3.0V)
Current consumption in deep sleep Approximately 50nA (@3.0V)
Operating temperature range -40°C to 85°C
Package QFN40 5mm x 5mm 0.4mm pitch
Wireless communication 

Bluetooth® low energy ver.4.2
Including central and peripheral functions

CPU ARM® Cortex®-M0
Transmitter output power 0dBm to -20dBm (4dB steps)
Receiver sensitivity -93.5dBm
Profiles HCI, GATT (Generic Attribute Profile), including server and client functions
Interfaces UART, I2C, SPI, GPIO
Flash ROM 128KB 
Other features 

DC-DC converter
Low drop regulator
General purpose ADC (5 channels)
Random number generator
User program function
Wake-up signal for host device
PWM function (4 channels)
Multi-point connection
Scatternet connection


[1]: Products with the same ratings, as of May 31, 2017. Toshiba survey.
[2]: Compared to Toshiba's "TC35678FSG".
[3]: Low-power-consumption-communication technology defined in Bluetooth® ver.4.2.
[4]: Length of battery life depends on the transmission interval time of beacons.


* The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Toshiba is under license. Other trademarks and trade names are those of their respective owners.


* ARM and Cortex are registered trademarks of ARM Limited (or its subsidiaries) in the EU and/or elsewhere.


For more information about Toshiba Bluetooth® wireless technology ICs, please visit:


Customer Inquiries:
Mixed Signal IC Sales and Marketing Department
Tel: +81-44-548-2821


Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.


About Toshiba
Toshiba Corporation, a Fortune Global 500 company, channels world-class capabilities in advanced electronic and electrical product and systems into three focus business fields: Energy that sustains everyday life, that is cleaner and safer; Infrastructure that sustains quality of life; and Storage that sustains the advanced information society. Guided by the principles of The Basic Commitment of the Toshiba Group, "Committed to People, Committed to the Future", Toshiba promotes global operations and is contributing to the realization of a world where generations to come can live better lives.


Founded in Tokyo in 1875, today's Toshiba is at the heart of a global network of 550 consolidated companies employing 188,000 people worldwide, with annual sales surpassing 5.6 trillion yen (US$50 billion). (As of March 31, 2016.)
To find out more about Toshiba, visit






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