Toshiba begins mass production of compact Arm® Cortex®-M4 microcontrollers for single-motor control applications
4th August 2026
Toshiba Electronics Europe GmbH (“Toshiba”) today announced the start of mass production of the TXZ+™ Family Entry-Class M4L Group, a new series of Arm® Cortex®-M4 based microcontrollers with a floating-point unit (FPU) operating at up to 80MHz. The devices are available with 128KB or 256KB of code flash memory in four compact package options.
Designed to meet the real-time processing requirements of single-motor control applications, the M4L Group combines dedicated motor control hardware, security features, functional safety measures and firmware update support on a single chip. This integration helps reduce external component count, minimise PCB area and simplify system design for a wide range of applications, including industrial equipment, factory automation systems, office equipment, home appliances and consumer products.
The M4L Group incorporates the latest versions of Toshiba's dedicated motor control hardware, including the Advanced Vector Engine (A-VE2), Advanced Programmable Motor Driver (A-PMD2) and Advanced Encoder (A-ENC2). By offloading computationally intensive motor control tasks from the CPU, these hardware accelerators enable efficient real-time field-oriented control (FoC), reduce processor utilisation and free additional processing resources for application software.
The microcontrollers also integrate security functions, functional safety measures and firmware-over-the-air (FOTA) and remote firmware update capabilities. Security features include Chip Protection (CPRO), Secure Access Memory (SAM) and Non-Rewritable Flash Protection (NRFP). These features help protect against unauthorised access, enforce memory access control and safeguard critical code and data regions. Combined, they provide a hardware-based foundation for securing embedded software and implementing a Root of Trust (RoT). Functional safety features include diagnostic mechanisms for flash memory, RAM, ADCs and clock systems, supporting the development of safety-related applications. Toshiba also provides UL 60730 Class B certified software to assist with the development of home appliance applications.
The devices with 256KB of code flash memory incorporate dual-bank architecture, allowing one flash bank to be reprogrammed while software continues to execute from the other. This enables firmware updates without interrupting system operation and supports FOTA implementation. Devices with 128KB of code flash memory incorporate 64KB of data flash memory for storing configuration information and application data, such as operating logs.
The M4L Group operates from a single supply voltage of 2.7V to 5.5V, enabling compatibility with both 3V and 5V systems. LQFP and VQFN packages with 44 to 64 pins provide flexibility across applications with different sizes and I/O requirements. The devices also integrate a high speed 10MHz oscillator with ±1% accuracy, together with an overcurrent detection comparator that can be used for emergency motor shutdown, helping lower system cost and PCB complexity by reducing the number of external components. A low-power mode is particularly suitable for battery-powered applications.
The M4L Group integrates a range of communication interfaces, including UART, SPI and I²C, as well as a Serial Memory Interface (SMIF) for memory expansion. Other peripherals include 12-bit ADCs, 8-bit DACs, comparators, DMA controllers, CRC calculation hardware and timer functions, enabling direct connection to sensors, actuators, external memories and other system components without requiring additional interface devices.
To facilitate evaluation and product development, Toshiba provides documentation, sample software and peripheral drivers, together with evaluation boards and development environments from Arm® ecosystem partners. Developed in collaboration with MIKROE, the Clicker 2 for TMPM4L4A evaluation board provides a cost-effective and easy-to-use platform for exploring BLDC motor control applications. The board is supported by Toshiba's MCU Motor Studio software available through the Toshiba website.
Documentation, sample software with actual usage examples, and driver software that controls the interfaces for each peripheral can be downloaded from the Toshiba website:
Evaluation boards and development environments are provided in cooperation with MIKROE and with Arm® ecosystem partners. For more information on the Clicker 2 for TMPM4L4A board, please visit the MIKROE website: https://www.mikroe.com/clicker-2-for-tmpm4l4a.
A complete overview of devices in the TXZ+™ Family Entry-Class can be accessed here:
https://toshiba.semicon-storage.com/eu/semiconductor/product/microcontrollers/txz4eplus-series.html
Toshiba will continue to expand its portfolio of motor control microcontrollers and associated development resources.
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Main Specifications
| Product group | M4L Group | ||||
|---|---|---|---|---|---|
| Part number[6] | TMPM4L4FYAUG TMPM4L4FWAUG |
TMPM4L2FYADUG TMPM4L2FWADUG |
TMPM4L2FYAQG TMPM4L2FWAQG |
TMPM4L1FYAUG TMPM4L1FWAUG |
|
| CPU core | Arm® Cortex®-M4 core with FPU - Memory protection unit (MPU) |
||||
| Maximum operating frequency | 80MHz | ||||
| Internal oscillator |
Oscillation frequency |
10MHz (±1%) | |||
| Internal memory |
Flash (code) (Program/erase cycles: up to 100,000 times) |
256KB/128KB | |||
| Flash (data) | 64KB[7] | ||||
| RAM | 32KB, with parity | ||||
| VE RAM | 4KB | ||||
| I/O port | 51 pins | 35 pins | 31 pins | ||
| External interrupt | 21 factors, 21 pins | 13 factors, 13 pins | 9 factors, 9 pins | ||
| DMA controller (DMAC) | 32 channels | 30 channels | 28 channels | ||
| Timer function |
32-bit timer event counter (T32A) |
5 channels (10 channels if used as 16-bit timer) |
|||
| Communication function |
UART | 6 channels | 5 channels | 4 channels | |
| I2C interface version A （EI2C） |
2 channels | 1 channel | |||
| TSPI | 3 channels | 2 channels | |||
| SMIF | 1 channel | ||||
| Analog function |
12-bit AD converter (ADC) |
14inputs in 2 units | 9 inputs in 2 units | 8 inputs in 2 units | |
| 8-bit DA converter (DAC) |
2 channels | ||||
| Comparator (COMP) |
6 channels | ||||
| Motor control circuit |
Advanced programmable motor control circuit 2 (A-PMD2) |
1 channel | |||
| Advanced encoder input circuit 2 (A-ENC2) |
1 channel | ||||
| Advanced vector engine 2 (A-VE2) |
1 channel | ||||
| Other | CRC calculation circuit (CRC) |
1 channel (CRC32, CRC16) | |||
| System function |
Watchdog timer (SIWDT) |
1 channel | |||
| Voltage detection circuit (LVD) |
1 channel | ||||
| Oscillation frequency detector (OFD) |
1 channel | ||||
| Security function | Chip Protection (CPRO), Secure Access Memory (SAM), Non‑Rewritable Flash Protection (NRFP) |
||||
| Debug interface | JTAG / SW TRACE(2bits) |
JTAG/SW | |||
| Operating voltage | 2.7V to 5.5V, single voltage supply | ||||
| Package/Pin | LQFP64 (10mm×10mm, 0.5mm pitch) |
LQFP48 (7mm×7mm, 0.5mm pitch) |
VQFN48 (7mm×7mm, 0.5mm pitch) |
LQFP44 (10mm×10mm, 0.8mm pitch) |
|
Notes:
[6] "FY" in the part number indicates 256KB of code flash memory and "FW" indicates 128KB.
[7] 128KB code flash products[4] only.
Follow the link below for more on the M4L Group.
M4L 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.