Toshiba launches a new clock expansion peripheral interface driver / receiver IC, which helps reduce the amount of wiring in the automotive electronic system

  • Source:network
  • Release on:2023-03-17

Toshiba Electronic Component and Storage Device Co., Ltd. ("Toshiba") announced today that the launch of an interface drive / receiver IC --- "TB9032FNG", which is a clock expansion peripheral interface (CXPI) [1]The car driver / receiver IC of the physical layer interface defined in the vehicle communication protocol standard.The sample application of this product will begin this month.


The electrification trend of cars has pushed the rising number of electronic components in the vehicle system, which not only increases the complexity of the device, but also increases the self -weight of the vehicle as the manufacturer adopts more wire beams in the design.The solution of this problem is to change the current system, that is, the human -machine interface (HMI) [2] connect the switch and sensor in one -to -one way, and reduce the amount of line beam in the way of transmitting communication in the multi -way transmission vehicle.

HMI usually integrates the regional network (Can) [3] and the LAN network (Lin) [4], while the former costs high, but the latter has poor response ability.CXPI is a set of Japanese -developed vehicle communication protocols that have been adopted by international standards. CXPI contains a vehicle sub -network that costs lower than CAN and responds higher than Lin.

The TB9032FNG combines the electrical control device (MCD) and CXPI communication, and provides the interface of the network interface or regional electronic control unit (ECU) of the vehicle application [5].It supports functions such as control door locks and rearview mirror control.

New products can be switched between the mode between the instruction node and the response node through the external terminal.In addition, it has 5 μA (typical value) current consumption (sleep) (IBAT_SLP) [6], and the standby mode consumes low current.In addition, it is also equipped with fault detection functions, including overheating and low voltage detection, and uses P-SOP8-0405-1.27-002.

The operating temperature range of this product is -40 ° C to 125 ° C, and the design meets the verification standards of AEC-Q100 (level 1) vehicle electronic components.

Toshiba plans to use its leading CXPI physical layer technical assets to develop an interface IC, which will integrate CXPI controllers and protocols to control hardware.


Car Equipment

-The body control system application (steering wheel switch, instrumental switch, lamp switch, door lock, door rearview mirror, etc.)

-Pend ECU


-The physical layer interface that meets CXPI (vehicle communication protocol standard)

-The high -speed response for the application of automotive body system (compared with Lin [3])

-The switch between the instruction node and the response node through the external terminal

-Built -in sleep mode

-A low current consumption (sleep): IBAT_SLP = 5μA (typical value)

-Factogenic detection function: overheating, low voltage detection and explicit timeout

-P-SOP8-0405-1.27-002 Packaging

-AEC-Q100 (level 1) certification

Main specifications:

(Unless otherwise explained, ta = -40 ℃ to 125 ℃)

Device model



ISO 20794-4

(CXPI physical layer of the vehicle communication protocol CXPI)


Physical interface

Node selection


(Switching between the instruction node and the response node through the external terminal)

Absolute maximum rated value

Power supply voltage 1 VBAT (V)

TA = 25 ℃

-0.3 to 40

The scope of work

BAT normal working range vbat (v)

7 to 18

VIO normal working range VVIO (V)

4.5 to 5.5

Work temperature range TA (℃)

-40 to 125

Current consumption (sleep) IBAT_SLP (μA)



Communication speed (Kbps)



Fault detection function

Overheating detection, low voltage detection and explicit timeout




Size (MM)


6.0 × 4.9

Reliability test

AEC-Q100 (level 1) certification

Mass production time

March 2024


[1] CXPI (clock expansion peripheral interface): The communication standards of the vehicle sub -network derived from Lin, developed in Japan

[2] HMI (human -machine interface): a mechanism that can realize interaction between people and machines

[3] CAN (controller area network): a serial communication standard, mainly used for car communication networks

[4] LIN (LAN): Communication standards for vehicle sub -networks with lower cost and lower speed than CAN

[5] ECU (electronic control unit): The electronic control unit mainly installed on motor vehicles

[6] Measurement conditions: VVIO = 4.5V to 5.5V, VBAT = 7V to 18V, TA = -40 ° C to 125 ° C, NSLP = L, TXD = H, BUS = vbat

For more information about new products, visit the following website:



For more information about the related Toshiba car network communication products, please visit the following URL:

Car network communication

*The company name, product name and service name mentioned in this article may be the trademark of their respective companies.

*Information, specifications, specifications, service content and contact information in this document is still the latest information on the date of the announcement, but if there is a change, it will not be notified separately.

About Toshiba Electronic Component and Storage Device Co., Ltd.

Toshiba Electronic Component and Storage Device Co., Ltd. is a leading supplier of advanced semiconductor and storage solutions. The company has accumulated more than half a century of experience and innovation.plan.

The company's 23,100 employees are all over the world and are committed to maximizing the value of product value. Toshiba Electronic Components and Storage Device Co., Ltd. pays great attention to close cooperation with customers. It aims to promote value co -creation and open up new markets.The annual sales of 711 billion yen ($ 6.2 billion) are expected to build a better future and make contributions to people around the world.

For more information about Toshiba Electronic Components and Storage Device Co., Ltd., visit the following URL: https://toship