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16bit Low–power Tough MCUs   ML620150 family

Jan 23, 2015

LAPIS Semiconductor, a ROHM Group company, has recently announced the development of the ML620100 series [ ML620150 family ] of 16bit low power microcontrollers featuring superior noise resistance and high-temperature compatibility ideal for home electronics and industrial equipment equipped with a motor, compressor, heater, or other noise-generating components.

The ML620150 family follows on the heels of the ML620500 series released in September of last year. In addition to LAPIS Semiconductor’s market-leading low power consumption design technology, this new series utilizes original noise resistance circuitry to achieve the highest level of performance in IEC61000-4-2 noise testing. And the microcontrollers themselves are highly resistant to noise, eliminating the need for additional noise countermeasures. They also feature a wide operating temperature range, from -40°C to +105°C, making them suitable for use even in high temperature environments. In addition, 4ch 16bit PWM*1 output enables control of IGBTs*2, providing compatibility with rice cookers, bread machines, induction heaters, and other high power applications.

A large number of consumer electronics devices and industrial equipment use motors, compressors, heaters, and other parts that generate noise. And some home electronics in particular work using the same power supply line in the kitchen, where countermeasures against power supply noise such as a system level shield are required. Also, many appliances and industrial equipment are exposed to high temperature environments due to the heat generated by motors and heaters, and therefore require stable operation at high temperatures.

At the same time, although 8bit MCUs have been widely adopted in consumer electronics, the need to provide greater comfort and convenience is driving automation, greater functionality, more accurate sensors, and higher MCU performance, leading to a shift towards 16bit microcontrollers.

To meet these needs for high noise tolerance, high temperature compatibility, and greater performance, LAPIS Semiconductor offers a total of nine 16bit low power microcontroller products in 3 different memory capacities and 3 package types.


  • *1 :PWM   Pulse width modulation
  • *2 : IGBT   Insulated gate bipolar transistor

LAPIS Semiconductor Microcontroller Series

LAPIS Semiconductor Microcontroller Series
Key Features
  • Superior noise immunity exceeds Class 4 in IEC61000-4-2 noise testing
    • The ML620150 series adopts the same circuit configuration as the ML610100 family of 8bit MCUs, making it possible to clear the ±30kV measurement limit which exceeds the highest level (Class 4, ±8kV) for indirect discharge testing stipulated by the international standard IEC61000-4-2.

  • Superior noise immunity exceeds Class 4 in IEC61000-4-2 noise testing
  • Guaranteed operation up to 105 °C supports use
    in even extreme temperature environments
    • A wide operating temperature range (-40°C to +105°C) is ensured – ideal for industrial equipment and consumer devices  ( i.e. rice cookers and bread machines )  exposed to high temperatures.

  • Wide pin pitch package optimized for flow soldering used
    in home appliances and industrial equipment
    • P-TQFP52: 10x10mm, 0.65mm pitch; P-QFP64: 14x14mm, 0.8mm pitch

  • 4ch 16-bit PWM enables control of power IGBTs
    • A variety of timer functions for efficient PWM control are built in, including an auto-reload timer function, start / stop function based on software / external trigger, and a function for selecting external events in the counter clock, making it possible to control power IGBTs.

  • Comprehensive support system
    • A reference board and software development environment are provided that make evaluation quick and easy, and registered users can access tools and download user manuals and technical documents from our website.

ML620150 Family Specifications

  • MCU Core
    • LAPIS Semiconductor's original 16bit RISC core (Core Name: nX-U16/100)
  • Operating Clock
    • Low-speed clock/External crystal oscillator (32.768 kHz), Internal low-speed RC oscillator (32.768 kHz)
    • High-speed clock/Internal PLL oscillator (8.192 MHz), Internal RC oscillator (2.097 MHz)
  • Internal Memory
    • ROM (Flash) 32 K-64 KByte
    • Data Flash 2 KByte
    • RAM 2 KByte
  • Timer
    • 16bit × 4, 8bit × 2
    • 16bit PWM × 4 (supports IGBT control)
    • Low-speed TBC × 1, WDT × 1
  • General-Purpose Port
    • Max. 41 (48 pin), 45 (52 pin), 57 (64 pin) *Without external crystal oscillation
    • LED display port x 4 (secondary function of general-purpose port)
  • External Interrupt
    • 7 (48 pin), 8 (52/64 pin)
  • Serial Interface
    • I2C (Master) × 1, UART (full duplex) × 1 ((half duplex) × 2), SSIO (SPI) × 1
  • Analog Interface
    • 10 bit successive approximation type ADC × 12 Comparator × 1
  • Other Functions
    • Power supply voltage detection, power-ON reset, clock output, etc.
  • Operating Frequency
    • 32.768kHz to 8.192MHz
  • Operating Temperature
    • -40 to 105°C
  • Supply Voltage
    • 1.8 to 5.5V
  • Package
    • P-TQFP48: 7×7mm, 0.5 pitch
    • P-TQFP52: 10×10mm, 0.65 pitch
    • P-QFP64: 14×14mm, 0.8 pitch
    • TQFP64: 10×10mm, 0.5 pitch

Sales Plan

  • Part No.
    ROM 32KByte 48KByte 64KByte
    48pin ML620Q151 ML620Q152 ML620Q153
    52pin ML620Q154 ML620Q155 ML620Q156
    64pin ML620Q157 ML620Q158 ML620Q159
  • Sample Shipment Period : Ongoing
  • Mass Production Shipment (Est.) : From March 2015
  • Production Qty : 150k pcs/month


  • Home electronics (e.g. rice cookers, vacuum cleaners, toaster ovens, dryers, and shavers)
    and general industrial equipment


For customers' inquiry regarding this release: please go to   the inquiry page

* Information in the press releases is current on the date of the press announcement, but is subject to change without prior notice.

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