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Toshiba Introduces New Clock Expansion Peripheral Interface Driver/Receiver IC to Help Reduce Wire Harnesses in Automotive Electronics Systems

Update time : 2023-03-20 10:27:58

Toshiba Electronics Components and Storage Devices Corporation ("Toshiba") today announced the launch of the TB9032FNG, an interface driver/receiver IC for the Clock Extended Peripheral Interface (CXPI)[1] Sample applications for this product will begin this month.

The trend towards electrification of vehicles is driving up the number of electronic components in in-vehicle systems, which not only increases the complexity of the devices but also increases the weight of the vehicle as manufacturers use more wiring harnesses in their designs. The solution to this problem lies in transforming current systems where the human-machine interface (HMI) [2] connects switches and sensors on a one-to-one basis, reducing the number of wiring harnesses by multiplexing in-vehicle communications.
CXPI is a Japanese-developed in-vehicle communication protocol, now adopted by international standards, which includes in-vehicle sub-networks that are less costly than CAN and more responsive than LIN.
The TB9032FNG combines Motor Control Device (MCD) and CXPI communications and provides a network interface for in-vehicle applications or an interface to regional Electronic Control Units (ECUs) [5]. It can support functions such as control of door locks and mirror control.
The new product allows mode switching between command and response nodes via an external terminal. In addition, it has a current consumption (sleep) of 5 μA (typical) (IBAT_SLP) [6] and low current consumption in standby mode. In addition to this, it is equipped with fault detection functions, including overheat detection and low voltage detection, and is available in a P-SOP8-0405-1.27-002 package.
The product has an operating temperature range of -40°C to 125°C and is designed to meet the AEC-Q100 (Class 1) in-vehicle electronic component verification standard. Toshiba plans to use its lead CXPI physical layer technology asset to develop an interface IC that will integrate a CXPI controller and protocol control hardware.

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