―Enhanced security and data management functions support secure system design for IoT equipment and other applications―

KAWASAKI, Japan--(BUSINESS WIRE)--

Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has announced TXZ+™ Family Entry-Class M4V Group, standard microcontrollers[1] featuring an Arm® Cortex®-M4 core with a floating-point unit (FPU), that enhance security and data management in IoT devices and industrial equipment. Engineering samples are available.

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The widespread adoption of network connectivity and over-the-air updates in consumer and industrial equipment has improved convenience in respect of remote monitoring, control, maintenance and device updating, while underlining the importance of security measures against unauthorized access and program tampering. There is also growing demand for protection of software assets, management of configuration and log data, and stable system operation throughout the entire product lifecycle—from development through to end-of-life.

Toshiba has addressed these requirements by developing the M4V Group, which enhances security and data management functions while retaining the ease of use and versatility of its current standard microcontrollers. The new products have a multilayered security architecture[2] that combines access control, memory protection, and execution control functions, which improves overall system security against unauthorized access and program tampering.

The microcontrollers are built around an Arm® Cortex®‑M4 core with FPU and operate at frequencies up to 80MHz. They deliver the computational performance and real-time capability required for system control applications and support a wide range of control applications in consumer and industrial equipment.

As on-chip memory, they integrate 128KB of code flash memory, 64KB of data flash memory, and 32KB of RAM. The data flash memory can retain rewritable data such as configuration and log data, securing data management tailored to the operating conditions of the equipment. The products also support a supply voltage range of 2.7V to 5.5V and integrate a high-speed oscillator that is ±1% accurate, which help to reduce external components and improve design flexibility. The microcontrollers are also suitable for consumer and industrial equipment with 5V power supplies.

Essential peripheral functions for system control built into the microcontrollers include a 12-bit analog-to-digital converter (ADC), timers, a universal asynchronous receiver/transmitter (UART), a serial peripheral interface (SPI), an inter-integrated circuit (I²C[3]), and direct memory access (DMA). They also integrate an advanced programmable motor control circuit 2 (A-PMD2[4]) that supports brushless DC motor control, providing flexibility for a wide range of application requirements and system configurations. On top of this, they also incorporate a serial memory interface (SMIF) for connection to external serial flash memory. They support direct access by mapping external memory into the address space and enable high-speed memory access with low CPU load through hardware control. This supports storage of large-volume data, log data, and firmware, contributing to efficient data management in IoT devices and OTA-enabled systems.

Toshiba supports device evaluation and development by providing a development environment in addition to engineering samples. It offers starter kits, sample software, common microcontroller software interface standard (CMSIS[5])-compliant drivers, and support for major integrated development environments (IDEs), enabling smooth progress from initial evaluation to application development.

Toshiba will continue to expand its enablement resources and related documentation to support safe and flexible system design for customers, while further strengthening its lineup of microcontroller products to meet diverse market needs.

Applications

IoT devices (smart home appliances, such as washing machines, refrigerators, and air conditioners)

Control equipment such as inverters, motors, pumps, and factory automation systems

Security-related equipment (servers and remote monitoring sensor devices)

System control applications requiring data management capabilities

Features

Arm® Cortex®-M4 core with FPU: operating 80MHz (max)

Wide supply voltage range: 2.7V to 5.5V

Internal memory:

Code flash memory: 128KB

Data flash: 64KB

RAM: 32KB

Multilayered security architecture providing end-to-end protection against unauthorized access and program tampering

Self-diagnosis functions for functional safety

Four types of package, selectable according to mounting area and assembly conditions

Main Specifications

Follow the links below for more on the new products.

TMPM4V4FWUG

TMPM4V2FWDUG

TMPM4V2FWQG

TMPM4V1FWUG

Follow the link below for more on the M4V Group.

M4V Group

Follow the link below for more on Toshiba’s Microcontrollers.

Microcontrollers

* Arm and Cortex are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

* TXZ+™ is a trademark of Toshiba Electronic Devices & Storage Corporation.

* Other 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 17,400 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 at https://toshiba.semicon-storage.com/ap-en/top.html

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Source: Toshiba Electronic Devices & Storage Corporation