Toshiba Releases New M4G Group of Arm® Cortex®-M4 Microcontrollers for High-speed Data Processing in the TXZ+TM Family Advanced Class

September 8, 2021

Toshiba Releases Arm® Cortex®-M4 Microcontrollers for Motor Control as First Products in the TXZ+TM Family Advanced Class

TXZ Family

TOKYO—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has started the mass production of 20 new devices in the M4G group for high-speed data processing as new products of the TXZ+TM family advanced class manufactured in a 40nm process. These products use Arm Cortex-M4 core with FPU, running up to 200MHz, integrating a maximum of 2MB code flash and 32KB data flash memory with 100K write cycle endurance, and features various interfacing and communication options. As a result, M4G group devices are ideally suited for office equipment, building and factory automation applications.

Microcontrollers in the M4G group have enhanced communication functions integrated as a serial memory interface that also supports Quad/Octal SPI, audio interface (I2S), external bus interface in addition to UART, FUART, TSPI and I2C. In addition, the devices have an in-built 3-unit DMAC and a bus matrix structure, which greatly improves communication throughput compared to Toshiba's conventional product.

These devices support a variety of sensing use cases with a high-speed, high-precision 12-bit analog/digital converter that allows individual sample hold times to be set for each AD input channel with up to 24 channels.

The self-diagnosis functions incorporated in the devices for ROM, RAM, ADC and Clock help customers to achieve IEC60730 Class B functional safety certification. These new devices offer low current consumption and high functionality while maintaining good compatibility with devices from the existing TXZTM family M4G(1) group.

Documentations, sample software with an example of actual usage, and driver software which control interfaces for each peripheral are available for download on the Toshiba website. Evaluations boards and development environments are provided in cooperation with Arm global ecosystem partners.

Major features of new products

  • High performance Arm Cortex-M4 core with FPU, max 200MHz
  • Motor control functions and communication interfaces
  • Self-diagnosis functions for IEC60730 class B functional safety


High-speed data processing for consumer appliances and industrial equipment.
MFP (Multi-function printer), audio-video equipment, communication equipment for building & factory automation, IoT home appliances etc.,


Product group

M4G group

CPU core

Arm Cortex-M4
‒ memory protection unit (MPU)
‒ floating-point unit (FPU)

Max operation frequency


Internal oscillator



Flash (code)

(rewritable up to 100,000 times)

Flash (data)

32KB (rewritable up to 100,000 times)


192KB/256KB and Backup RAM 2KB

I/O port

91 to 155

External interrupt

12 to 16

External bus interface

8/16bit width (separate/multiplexed bus)

DMA controller (DMAC)

Multi-function DMAC 1 unit
High-speed DMAC 2units

Timer function


32-bit timer : 16
(can be used as 16-bit timer : 32)


Long Term Timer:1 channel


Real Time Clock:1 channel



Asynchronous Serial Communication:
3 to 6 channels


Full Universal Asynchronous Receiver Transmitter:1 to 2 channels


3 to 5 channels


Serial Peripheral Interface:5 to 9 channels


Synchronous serial Interface:
1 to 2 channels


Serial Memory Interface:1 channel


1 channel


12-bit AD converter

16 to 24 channel input

8-bit Digital to Analog converter

2 channels


Motor control (A-PMD)

1 channel


Remote Control Signal Preprocessor:
1 to 2 channels


Interval Sensor detection Circuit:
1 to 3 units


2 channels


FIR Calculation circuit:1 channel



1 channel


Voltage Detection Circuit:1 channel


Oscillation Frequency Detector:1 channel

On-chip debug function

Serial Wire /JTAG

Operation voltage

2.7 to 3.6V, single voltage supply

Package / Pin

LQFP176 (20mm x 20mm, 0.4mm pitch)
VFBGA177 (13mm x 13mm, 0.8mm pitch)
LQFP144 (20mm x 20mm, 0.5mm pitch)
VFBGA145 (12mm x 12mm, 0.8mm pitch)
LQFP100 (14mm x 14mm, 0.5mm pitch)

See the URL below for further details on new products.

M4G Group

See the URL below for further details on Toshiba 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 press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications.

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