Toshiba Launches New ICs for Bluetooth® Smart Devices with Industry-Leading-Class Low Current Consumption

- Promoting Adoption of Communication Functions for Coin Battery Drive Devices -

TOKYO — (BUSINESS WIRE) — July 14, 2016Toshiba Corporation's (TOKYO: 6502) Storage & Electronic Devices Solutions Company today announced the launch of three new ICs “TC35678FSG”, “TC35678FXG” and “TC35679FSG” as additions to its line-up of ICs that support Bluetooth® Low Energy (LE)[1] ver.4.1 communications. At 3V supply voltage, the new ICs consume just under half the power of Toshiba’s previous products[2], and realize current consumption on par with the lowest in the industry[3]. Sample shipments start today, with mass production scheduled to start by the end of 2016 for “TC35678FXG” and in early 2017 for the other two ICs.

This Smart News Release features multimedia. View the full release here: http://www.businesswire.com/news/home/20160714005464/en/

Toshiba: New IC "TC35678FSG" for Bluetooth(R) Smart devices with industry-leading-class low current  ...

Toshiba: New IC "TC35678FSG" for Bluetooth(R) Smart devices with industry-leading-class low current consumption (Photo: Business Wire)

Adoption of a highly efficient DC-DC converter introduced in earlier products and an original low-power circuit design secures a nearly 46% current reduction and peak current consumption of 3.6 mA at 3V supply voltage in transmitting mode.

Both “TC35678FXG” and “TC35678FSG” incorporate built-in Flash ROM to store user programs and various data in stand-alone operations. Although memory capacity for user programs was only 64 KB in previous products, it is now extended to 100 KB in both ICs, contributing to the expandability of application programs.

The built-in Flash ROM eliminates any need for external EEPROM, previously required for stand-alone operations. This contributes to cost and mounting-area reduction by reducing external parts count.

“TC35678FXG” is a repackaged “TC35678FSG” in a QFN60 package that extends the number of general purpose IO from 16 to 32. It is suitable for equipment that requires a large number of control pins such as keyboards and remote-controllers.

“TC35679FSG” has no built-in Flash ROM and can achieve extremely low current operation by reducing current consumption for access to Flash ROM. It accordingly achieves 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 a year[4].

The new ICs will facilitate adoption of Bluetooth® LE communications for wearable devices for healthcare applications and for high grade small devices that use coin batteries such as sensors and toys, and will support set makers in optimizing product value.

Key Features

- Low power consumption:

3.6 mA (Transmitter operation @3.0 V, Output power: 0 dBm)
3.3 mA (Receiver operation @3.0 V)
Less than 100nA in deep sleep (@3.0V)

- Receiver sensitivity: -93 dBm
- Supports Bluetooth® LE ver.4.1 central and peripheral devices
- Built-in GATT (Generic Attribute Profile)
- Supports servers and client functions defined by GATT
- Built-in 256 KB Flash ROM (TC35678FSG/FXG)

Applications

Bluetooth® Smart devices[5], such as wearable devices, healthcare devices, smart phone accessories, remote controllers and toys.

 

Main Specifications

 
Part Number   TC35678FSG/FXG   TC35679FSG
Operating voltage range 1.8V to 3.6V

Current consumption in
TX operation

3.6 mA (@3.0 V, Output power : 0 dBm )

Current consumption in
RX operation

3.3 mA (@3.0V)

Current consumption in
deep sleep

Less than 100nA (@3.0V)

Operating temperature
range

-40°C to 85 °C
Package

QFN40 5 mm x 5 mm 0.4 mm
pitch (TC35678FSG)

QFN60 7 mm x 7 mm 0.4 mm
pitch (TC35678FXG)

QFN40 5 mm x 5 mm 0.4 mm
pitch

Wireless
communication

Bluetooth ® Low Energy ver.4.1

Including central and peripheral functions

CPU ARM ® Cortex ® -M0

Transmitter output
power

0 dBm to -20 dBm (4 dB steps)
Receiver sensitivity -93.0dBm
Profiles

HCI, GATT (Generic Attribute Profile), including server and
client functions

Interfaces UART, I 2 C, SPI, GPIO
Flash ROM 256 KB
Other features   DC-DC Converter

Low drop regulator

General purpose ADC

User program function

Wake up signal for host device

PWM function

 

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