Toshiba Is Sampling an Automotive CXPI Responder Interface IC that Contributes to Shorter Software Development Times
September 02 2024 - 10:00PM
Business Wire
- Industry’s first[1] CXPI responder
interface IC with built-in hardware logics -
Toshiba Electronic Devices & Storage Corporation ("Toshiba")
has today started to provide samples of “TB9033FTG,” an automotive
Clock Extension Peripheral Interface[2] (CXPI) responder interface
IC that conforms to the CXPI standard for automotive communications
protocols.
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Toshiba: TB9033FTG, an automotive Clock
Extension Peripheral Interface (CXPI) responder interface IC.
(Graphic: Business Wire)
TP9033FTG is the industry’s first[1] IC of its type with
built-in hardware logics[3], which control transmission and
reception by the CXPI protocol and general purpose input/output
(GPIO). This eliminates the need for development of dedicated
software and contributes to shorter product development times.
The new IC has 16 GPIO pins. Six can be switched to AD converter
input, and four to pulse width modulation (PWM) output. It also
integrates functions that allow use in a broad spectrum of
automotive applications: input monitoring during Sleep Mode; switch
matrix (max 4×4) input; and output in the event of communications
disruption.
Fault detection circuits for overheat, overvoltage and low
voltage are built into the IC. It also can detect conditions that
precede an abnormality and send the data to the commander node,
improving fault detection performance in automotive
applications.
The operating temperature range is from -40 to 125°C which is
suitable for automotive applications, and the IC will conform to
the AEC-Q100 qualification standard for automotive electronics.
The new product’s support for multiplexing automotive
communications and reducing the number of wire harnesses used in
body control systems will contribute to lower vehicle weight.
Toshiba is also developing an automotive CXPI communications
driver receiver IC “TB9032FNG” that can be switched between
commander node and responder node via an external pin.
Notes:
[1] As CXPI interface IC for responder nodes. As of September 3,
2024, Toshiba survey. [2] CXPI (Clock Extension Peripheral
Interface): A communications standard, developed in Japan for
automotive sub-networks derived from LIN[4]. [3] Logic circuits
configured with hardware without a microcontroller. [4] LIN (Local
Interconnect Network): A communications standard for lower-cost,
lower-speed on-board subnetworks than provided by CAN[5]. [5] CAN
(Controller Area Network): A serial communications standard,
primarily used for automotive communications networks.
Applications
Automotive
- Body control system applications (steering wheel switches,
meter cluster switches, light switches, door locks, door mirrors,
etc.)
Features
- Responder interface IC conforming to the CXPI standard for
automotive communications protocols
- High-speed response suitable for automotive body system
applications (compared with LIN)
- 16 GPIO pins (four can be switched to PWM output, another six
can be converted to AD converter input)
- Switch matrix (max 4×4) input function
- Fault detection functions (This product can detect conditions
that precede an abnormality and automatically send the data to the
commander node.): Overheat, overvoltage and low voltage
- Low current consumption (Standby Current): IVBAT_SLP=10μA
(typ.)
- Low EMI and high EMS make noise design easier
- Highly resistant to static electricity due to its high ESD
resistance
- To be AEC-Q100 qualified
Main Specifications
(Ta=-40 to 125°C)
Part number
TB9033FTG
Standard
Conforming to CXPI (ISO 20794-2 to 4, ISO
14229-8) of the standard for automotive communications
protocols
Functions
CXPI interface IC with built-in hardware
logics (responder node only)
I/O pins
16 GPIO pins (4.5 to 5.5V)
(six pins can be switched to one circuit
of 10bit AD converter input and four pins can be switched to four
circuits of 8bit PWM output.)
Input functions
- Input monitoring during Sleep Mode
- Input chattering filter setting
- Switch matrix (max 4×4) setting
- Sampling of AD converter moving average
(time and number of times can be set)
Output functions
- Output on/off control (time and number of
times can be set)
- Output control when communication is
interrupted
- PWM frequency setting
Built-in memory
Non-volatile memory (saving I/O pin
settings, rewriteable and passwords configurable)
Fault detection functions
Overheat, overvoltage and low voltage
(This product can detect conditions that precede an abnormality and
automatically send the data to the commander node.)
Absolute
maximum
ratings
Power supply voltage
VVBAT (V)
-0.3 to 40
Electrical
characteristics
VBAT normal operating range
VVBAT (V)
6 to 18
Current consumption (Standby
Current)
IVBAT_SLP (μA)
Typ.
10
Operating temperature
Ta (°C)
-40 to 125
Communication speed (kbps)
Max
20
Package
Name
P-VQFN28-0606-0.65-003
Size (mm)
6×6
Reliability test
To be AEC-Q100 (Grade1) qualified
Mass production
December 2025
Follow the link below for more on the new product. TB9033FTG
Follow the link below for more on Toshiba’s products for
automotive network communications. Automotive Network
Communication
* Company names, product names, and service names may be
trademarks of their respective companies. * Information in this
document, including product prices and specifications, content of
services and contact information, is current on the date of the
announcement but is subject to change without prior notice.
About Toshiba Electronic Devices & Storage
Corporation
Toshiba Electronic Devices & Storage Corporation, a leading
supplier of advanced semiconductor and storage solutions, draws on
over half a century of experience and innovation to offer customers
and business partners outstanding discrete semiconductors, system
LSIs and HDD products. Its 19,400 employees around the world share
a determination to maximize product value, and to promote close
collaboration with customers in the co-creation of value and new
markets. The company looks forward to building and to contributing
to a better future for people everywhere. Find out more about TDSC
at https://toshiba.semicon-storage.com/ap-en/top.html
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