Toshiba Releases Bluetooth® 5 IC for Automotive Applications

Highly expandable and integrated device will be fully AEC-Q100 qualified

TOKYO — (BUSINESS WIRE) — October 29, 2018Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has added “TC35681IFTG”, a new IC for automotive applications, to its line-up of ICs compliant with Bluetooth® low energy (LE)[1] core specification v5.0. The new device is suited to use in demanding automotive environments, as it delivers a wide operating temperature range, high RF transmission power and high RF reception sensitivity (a link budget of 113dB @125kbps at long range transmission). The mixed-signal TC35681IFTG contains both analog RF and baseband digital parts to provide a complete solution on a single chip.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20181029005846/en/

Toshiba: "TC35681IFTG," a new Bluetooth(R) 5 IC for automotive applications (Photo: Business Wire)

Toshiba: "TC35681IFTG," a new Bluetooth(R) 5 IC for automotive applications (Photo: Business Wire)

In addition to the basic functions of Host Controller Interface (HCI) profile and GATT profile functions, TC35681IFTG adds the new functions defined by Bluetooth® core specification 5.0[2], including 2Mbps throughput, Long Range and Advertising Extension functions, stored in internal mask ROM. It also integrates a high gain power amplifier and realizes +8dBm for long distance communication.

When used in conjunction with an external non-volatile memory, the new IC becomes a fully-fledged application processor that temporarily loads applications and stores in internal RAM (76KB). It can also be combined with an external host processor.

The integration of 18 General Purpose IO (GPIO) lines and multiple communications options including SPI, I2C and a 921.6kbps, two-channel UART, gives TC35681IFTG the ability to form part of sophisticated systems. The GPIO lines offer access to a range of on-chip features including a wake-up interface, four-channel PWM interface and 5-channel AD converter. An on-chip DC-DC converter or LDO circuits adjust the external voltage supply to the required values on chip.

As it is designed to be compliant with AEC-Q100[3], the low energy IC is primarily intended to be used in automotive applications. The wettable flank package simplifies automatic visual inspection needed to deliver the high levels of soldering quality required to withstand the vibration experienced in automotive applications.

Current applications include Remote Keyless Entry, On-Board Diagnostics to collect sensor data, Tire Pressure Monitoring Systems, and other contributors to improved vehicle comfort and safety.

Key Features

- Low power consumption:
6.0mA (transmitter operation @3.0V, output power: 0dBm, 1Mbps mode)
6.5mA (transmitter operation @3.0V, output power: 0dBm, 2Mbps mode)
11.0mA (transmitter operation @3.0V, output power: 8dbm, 1Mbps mode)
11.5mA (transmitter operation @3.0V, output power: 8dBm, 2Mbps mode)
5.1mA (receiver operation @3.0V, 1Mbps mode)
5.5mA (receiver operation @3.0V, 2Mbps mode)
50nA in deep sleep (@3.0V)
- High receiver sensitivity:
-95.6dBm (1Mbps mode)
-93.2dBm (2Mbps mode)
-101.2dBm (500kbps mode (S=2))
-105.2dBm (125kbps mode (S=8))
- Supports Bluetooth ® LE v5.0 central and peripheral devices
- Built-in GATT (Generic Attribute Profile)
- Supports servers and client functions defined by GATT
- Additional features as defined by Bluetooth ® LE v5.0 [2]
2Mbps
Long Range (Coded PHY)
Advertising Extension
- Supports automotive reliability
Compliant with AEC-Q100 [3]

Operation in wide temperature range

Wettable flank package
 

Applications

Bluetooth ® low energy communication devices for automotive and industrial applications.

 

Main Specifications

Part number   TC35681IFTG

Operating voltage
range

1.8V to 3.6V

Current consumption in
TX operation

11.0mA (@3.0V, Output Power: 8dBm, 1Mbps mode )

Current consumption in
RX operation

5.1mA (@3.0V, 1Mbps mode)

Current consumption in
deep sleep

50nA (@3.0V)

Operating temperature
range

-40°C to 125°C
Package QFN40 6mm x 6mm 0.5mm pitch, wettable flank

Wireless
communication

Bluetooth ® Low Energy v5.0
CPU Arm ® Cortex ® -M0

Transmitter output
power

8dBm to -20dBm (8,7,6,4,0,-6,-20dB)
Receiver sensitivity -95.6dBm (1Mbps mode)
Profiles HCI, GATT (Generic Attribute Profile), including server and client functions
Interfaces UART, I 2 C, SPI, GPIO, SWD
Other features   Compliant with AEC-Q100 [3]

Central and peripheral functions

DC-DC converter

Low drop regulator

General purpose ADC

User program function

Wake up signal for host device

PWM function

 

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