For Multiple Uses ML62Q1000 Series (U16)

For Multiple Uses ML62Q1000 Series (U16)


The ML62Q1000 series which is equipped with the original RISC 16bit CPU "U16 Core" is a general-purpose 16bit MCU.
The ML62Q1000 series has a broad lineup offered in a range of package sizes and program memory capacities that take into account designs and scalability for system optimization.
Therefore, even if the number of terminals and program memory capacity needs to be changed, the software assets can be reused, making it ideal as a "platform" for model development.
In addition, the ML62Q1000 series is equipped with safety functions, contributing to the safety and security of your applications.
The ML62Q1000 series has four groups, depending on the program memory size and whether or not the LCD driver is build-in.

ML62Q1300 group ROM Capacity : 16KB to 64KB Pin number: 16pin to 32pin
ML62Q1500 group ROM Capacity : 32KB to 256KB Pin number: 48pin to 100pin
ML62Q1800 group ROM Capacity : 384KB to 512KB Pin number: 64pin to 100pin
Built-in LCD Driver ML62Q1700 group ROM Capacity : 32KB to 512KB Pin number: 48pin to 100pin

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      Supporting Information


      For Multiple Uses ML62Q1000 Series (U16)


      ML62Q1000 series System Block Diagram
      • Feature 1: Multiple peripherals
        A wide array of peripheral circuits are built-in, including numerous serial communication circuits, multifunction timers, a high accuracy analog function, and flash memory that supports background operation and allows executing the program code while writing to the data flash.
      • Feature 2: Broad lineup
        The broad lineup includes several package types, from 16 to 64 pins, in program memory sizes ranging from 16KB to 64 KB. Software-compatible peripheral functions are built in. The similar pin layouts enable flexible changes in package and/or program size.
      • Feature 3: Safe operation
        Some circuits are added to expand the self-test range. Also, the MCU provides functions that prevent crystal oscillation stopped by pin leakages or malfunctions at power up and/or at low voltage.

      Complete dual clock system drivers low power consumption

      Complete Dual Clock System

      This system enables the selection of low-speed and high-speed clocks for each CPU and peripheral circuit. For example, when the high-speed clock is selected for the CPU and timer operation, the UART is workable at a low-speed clock to wait for a receive even if the high-speed needs to be stopped. This provides flexible clock management that can help reduce power consumption considerably.

      LMCU Circuit MCU Circuit

      Current Control at Powerup

      Controlling the initial current at the power up and utilizing a low-speed clock as an initial clock minimizes the startup current, and allows the operation with a current-limited power supply.

      MCU Power Supply MCU Power Supply

      Product Features

      Feature 1Strong against noise and compatible with high temperatures

      Cleared the highest class (±8kV)
      during IEC61000-4-2 ESD noise testing (also cleared ±30kV)
      Broad operating temperature range: -40°C to +105°C Compatible with high temperatures.

      Resistance evaluation test results against electrostatic discharge based on IEC61000-4-2

      Quality level Testing voltage [kV] ML62Q100 series
      Test Result
      1 ±2 Pass
      2 ±4 Pass
      3 ±6 Pass
      4 ±8 Pass




      Feature 2Enhanced safety functions

      Conventional safety functions
      • RAM parity error
      • RAM guard
      • SFR guard
      • Invalid memory access
      • Oscillation frequency test
      • A/D converter self-test
      NEW!Safety functions
      • Flash memory CRC calculation
      • GPIO self-test
      • UART self-test
      • SSIO self-test
      • I2Cself-test
      • WDT test
      • Clock backup

      8 new functions have been added to the existing safety functions of 'Tough' MCUs (ML62013x series).

      Feature 3Crystal oscillator strong against leakage (Less incidence of oscillation stop ! Safe in case it's stopped !)

      Adopting a crystal oscillator circuit strong against leakage, prevents the oscillator stop due to moisture adhesion. Also, the backup RC oscillator prevents system freeze even in case the oscillation happens to stop (48-pin to 100-pin products)

      Feature 4Prevents malfunctions during power up (Prevents overcurrent, FET damage, and DAC noise)

      The voltage detection reset function works at power up or at a low voltage to prevent problems caused by undefined or open output conditions of ports.


      ML62Q1000 is ideal for white goods that are becoming more sophisticated and small appliances around the kitchen

      ML62Q1000 series of high functionality, high performance, and low power tough MCU with "U16 Core" can be used in a wide range of applications such as consumer electronics, and industrial equipment by adding to the enhanced safety functions.
      Especially the safety functions realize not only fault diagnosis of peripheral equipment but self-diagnosis of MCUs. Therefore ML62Q1000 series are suitable for the high functional home appliance and compact appliance for the kitchen.

      ML62Q1000'ssafety functions (IEC/UL 60730 class B compliant)

      14 safety features by hardware

      One thing to pay special attention to in designing electrical home appliances is to prevent accidents in advance. Recently, microcontrollers are used for electric home appliances, and safety is secured by the function of the microcontroller. Therefore, to avoid danger, the microcontroller itself needs a safety function to diagnose the failure of the microcontroller itself.
      The ML62Q1000 series has many safety functions as hardware.

      Safety functions built-in the ML62Q1000 series

      Function Name Description
      RAM guard Prevent the miss-writing to the RAM
      SFR guard Prevent the miss-writing to the SFR
      Successive approximation type A/D converter test Successive approximation type AD converter test function
      RAM parity error detection Check RAM parity error and generates a reset on error (enable/disable reset by SFR, with reset status flag and parity error flag)
      ROM unused area access reset Generate a reset in case the CPU executes an instruction in the unused area (enable/disable reset by the code option, with reset status flag)
      Clock mutual monitoring Check whether the oscillation of the high-speed and low-speed clocks operates correctly
      CRC calculation Detect data error of flash memory and communications
      UART self-test function Check whether the UART works correctly
      SSIO self-test function Check whether the SSIO works correctly
      I2C self-test function Check whether the I2C wors correctly
      WDT counter read WDT counter read function
      Port output level self-test function General port self-test function
      MCU status interrupt Control interrupts generated by RAM parity error, automatic CRC calculation completion, data flash erase/program completion
      Clock backup function and the self-test

      * ML62Q1400 / ML62Q1500 / ML62Q1600 / ML62Q1700

      Switch automatically to the low-speed RC oscillation in case the low-speed crystal oscillation stop
      Automatic electric control unit International standard IEC/UL 60730 compliant

      The ML62Q1000 series can comply with international standard IEC / UL 60730 of the automatic electric control device as self-diagnostic function software of microcontrollers.
      Self-diagnostic software compatible with IEC 60730-1 Annex H Software class B can be provided as sample software.

      The functions supported by the ML62Q1000 series self-diagnostic software

      Object Self-diagnosis function Description
      CPU Register test Detect stack fault in the internal register of the CPU
      counter test
      Detect stack fault in the program counter
      Interrupt Interrupt test Detect interrupt fault
      Clock Oscillation frequency test Detect error by Measurement the frequency of the low-speed clock and the high-speed clock operating independently
      Memory Flash memory
      Detect bit fault of program code area by CRC check
      RAM test Detect DC fault by RAM read / write test
      Input / Output GPIO test Detects abnormality of output data by self-reading output data
      A/D converter test Detects abnormality of A/D converter and analog switch by A/D conversion of full scale / zero scale / internal reference voltage
      UART / SSIO / I2C test Detect abnormality of the communication circuit by internally connecting the transmission data and the reception data
      Other WDT test Detect WDT counter error by reading WDT counter

      Product Longevity Program

      Product Longevity Program

      The ML62Q1000 series is a product covered by the "Product Longevity Program".
      Please visit the page for the Product Longevity Program.
      *Please contact us for more information.

      Product Longevity Program Contact Us

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