Toshiba Releases Arm® Cortex®-M4 Microcontrollers for Motor Control

- Additions to M4K Group in the TXZ+™ Family Advanced Class boost code flash memory to 512KB/1MB -

KAWASAKI, Japan — (BUSINESS WIRE) — March 25, 2024Toshiba Electronic Devices & Storage Corporation ("Toshiba") has added eight new products with 512KB/1MB flash memory capacity and four types of packages to the M4K Group of the TXZ+™ Family Advanced Class 32-bit microcontrollers equipped with Cortex®-M4 core with FPU.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20240325053408/en/

Toshiba: TXZ+™ Family Advanced Class Arm® Cortex®-M4 microcontrollers for motor control (Graphic: Business Wire)

Toshiba: TXZ+™ Family Advanced Class Arm® Cortex®-M4 microcontrollers for motor control (Graphic: Business Wire)

Continuing advances in the functionality of motor applications supporting IoT is increasing demand for large program capacity and firmware over-the-air support.

The new products expand code flash memory capacity from the 256KB maximum of Toshiba’s current product to 512KB[1]/1MB[2], depending on the product, and RAM capacity from 24KB to 64KB. Other features, such as an Arm® Cortex®-M4 core running up to 160MHz, integrated code flash and 32KB data flash memory with 100K program/erase cycle endurance, have been maintained.

The microcontrollers also offer various interfaces and motor control options, such as advance-programmable motor driver (A-PMD), advanced encoder 32-bit (A-ENC32), advanced vector engine plus (A-VE+) and three units of high-speed, high-resolution 12-bit analog/digital converters. As a result, the M4K Group products contribute to wider application of IoT, and bring advanced functionality to AC motors, brushless DC motors and inverter controls.

The new products implement the 1MB code flash in two separate 512KB areas. This realizes firmware rotation with the memory swap method[3], allowing instructions to be read from one area while updated code is programmed into the other area in parallel.

Devices in the M4K Group have UART, TSPI and I2C integrated as general communications interfaces. Self-diagnosis functions incorporated in the devices for flash memory, RAM, ADC and Clock help customers to achieve IEC 60730 Class B functional safety certification.

Documentation, sample software with actual use examples, and driver software that controls the interfaces for each peripheral are available. Evaluation boards and development environments are provided in cooperation with Arm® global ecosystem partners.

Toshiba is planning to increase capacity of flash memory also for M4M Group with CAN interface.

Notes:
[1] Code flash memory capacity of TMPM4KxFDAxxG is 512KB with one area.
[2] Code flash memory capacity of TMPM4KxF10AxxG is 1MB, made up of two 512KB areas.
[3] TMPM4KxFDAxxG does not support this function.

Applications

  • Motors and inverter control of consumer products, industrial equipment
  • IoT of consumer products, industrial equipment, etc.

Features

  • High-performance Cortex®-M4 core with FPU, max 160MHz
  • Increased capacity of internal memory
    Code flash memory: 512KB/1MB
    RAM: 64KB
  • Memory swap method firmware rotation function, supporting firmware updates while the microcontroller continues to operate[4]
  • Self-diagnosis functions for IEC 60730 class B functional safety
  • Four types of packages

Main Specifications

Product group

M4K Group

Part number[5]

TMPM4KNF10AFG

TMPM4KNFDAFG

TMPM4KLF10AUG

TMPM4KLFDAUG

TMPM4KNF10ADFG

TMPM4KNFDADFG

TMPM4KLF10AFG

TMPM4KLFDAFG

CPU core

Arm® Cortex®-M4

‒ floating point unit (FPU)

‒ memory protection unit (MPU)

Maximum operating frequency

160MHz

Internal oscillator

Oscillation frequency

10MHz (±1%)

Internal

memory

Flash (code)

1024KB/512KB[5] (Program/erase cycles: up to 100,000 times)

Memory swap method firmware rotation function with two separate code flash areas of 512KB each[4]

Flash (data)

32KB (Program/erase cycles: up to 100,000 times)

RAM

64KB, with parity

I/O port

87 pin

51 pin

External interrupt

20 factors, 32 pin

15 factors, 20 pin

DMA controller (DMAC)

32 channels

30 channels

Timer function

32-bit Timer Event Counter (T32A)

6 channels
(12 channels if used as 16-bit timer)

Communication function

UART

4 channels

3 channels

I 2 C/EI 2 C interface (I2C/EI2C)

2 channels

TSPI

2 channels

Analog function

12-bit AD converter

(ADC)

11/5/6 inputs in 3 units

8/3/3 inputs in 3 units

Operational Amplifier

(OPAMP)

3 units

Motor control circuits

Advanced Programmable Motor Control Circuit

(A-PMD)

3 channels

3 channels [6]

Advanced Vector Engine Plus

(A-VE+)

1 channel

Advanced Encoder Input Circuit (32-bit)

(A-ENC32)

3 channels

1 channel

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

On Chip Debug function

JTAG / SW

TRACE(4bits)

NBDIF

SW

Operating voltage

2.7 to 5.5V, single voltage supply

4.5 to 5.5 V (All functions), 2.7 to 4.5 V (Without OPAMP, ADC)

Package / Pin

LQFP100

(14mm x 14mm, 0.5mm pitch)

LQFP64

(10mm x 10mm, 0.5mm pitch)

QFP100

(14mm x 20mm, 0.65mm pitch)

LQFP64

(14mm x 14mm, 0.8mm pitch)


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