Toshiba Launches First CXPI Responder Interface IC with Built-in Hardware Logic to Reduce Development Time for Automotive Electronic Systems－Automotive CXPI Responder Interface IC Samples Available－
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) announced yesterday that it has become the first in the industry to launch the “ TB9033FTG ,” an automotive Clock Extension Peripheral Interface [1] (CXPI) responder interface IC compliant with the CXPI standard for automotive communication protocols .
The TB9033FTG is the industry’s first [2] IC with built-in hardware logic [3] that controls transmission and reception via the CXPI protocol and general-purpose input/output (GPIO). This not only eliminates the need to develop dedicated software, but also helps shorten product development time.
The new IC has 16 GPIO pins, six of which can be switched to AD converter inputs and four of which can be switched to pulse width modulation (PWM) outputs. In addition, it integrates a number of functions that can be used in a wide range of automotive applications: including input monitoring in sleep mode, switching matrix (up to 4×4) inputs, and outputs when communication is interrupted.
The IC has built-in fault detection circuits for overtemperature, overvoltage, and undervoltage. It can also detect conditions before an abnormality occurs and send data to a command node, thereby improving fault detection performance in automotive applications.
The operating temperature range is –40 to 125 °C, making it suitable for automotive applications, and the IC will meet the AEC-Q100 qualification standard for automotive electronics.
The TB9033FTG supports multiplexing of automotive communications and reduces the number of wiring harnesses used in body control systems, helping to reduce vehicle weight.
In addition, Toshiba is also developing an automotive CXPI communication driver receiver IC " TB9032FNG ", which can be switched between command node and response node via an external pin.
CXPI Network Configuration Reference
car
● Car body control system applications (steering wheel switches, instrument panel switches, light switches, door locks, door mirrors, etc.)
characteristic
● The responder interface IC complies with the CXPI standard of the automotive communication protocol
● High-speed response suitable for automotive body system applications (compared to LIN)
● 16 GPIO pins (four can be switched to PWM outputs, and six can be switched to AD converter inputs)
● Switch matrix (up to 4×4) input function
● Fault detection function (the product can detect abnormal precursors and automatically send data to the command node): overheating, overvoltage and undervoltage
● Low current consumption (standby current): I VBAT_SLP = 10 μA (typical)
● Low EMI and high EMS can simplify noise design
● It has high ESD resistance and therefore high electrostatic resistance
● Will be AEC-Q100 certified
Main Specifications
( Ta = –40 to 125 °C unless otherwise stated )
Note:
[1] CXPI (Clock Extension Peripheral Interface): A communications standard developed in Japan for automotive subnets derived from LIN[4]
[2] CXPI interface IC as a responding node. Toshiba survey as of September 3, 2024.
[3] Logic circuit using hardware configuration without a microcontroller.
[4] LIN (Local Interconnect Network): A communications standard for in-vehicle sub-networks that offers lower cost and lower speed than CAN[5].
[5] CAN (Controller Area Network): A serial communications standard used primarily in automotive communication networks.
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About Toshiba Electronic Devices & Storage Corporation
Toshiba Electronic Devices & Storage Corporation is a leading supplier of advanced semiconductor and storage solutions, with more than half a century of experience and innovation, providing customers and partners with outstanding solutions in discrete semiconductors, system LSI and HDD.
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