company blog about Supply ROHM MCU:Edge Computing AI MCU,Power Electronics Control MCU,Speech Playback MCU

Supply ROHM MCU:Edge Computing AI MCU,Power Electronics Control MCU,Speech Playback MCU

Shenzhen Mingjiada Electronics Co., Ltd. is a company specialising in the distribution of electronic components. With our extensive procurement channels and wealth of experience in supply chain management, we are committed to providing our customers with high-quality electronic component supply services.

Supply Advantages:

1. Genuine Product Guarantee, Reliable Quality

Direct manufacturer supply channels: We have established long-term authorised partnerships with over 500 leading global semiconductor brands, ensuring that all products are genuine and sourced directly from the manufacturers.

Quality Management System: Certified to ISO 9001:2014 Quality Management System and ISO 14001:2014 Environmental Management System standards.

Strict Quality Control: End-to-end inspections ensure 100% genuine products, eliminating refurbished or loose new items, and providing batch traceability.

2. Comprehensive Product Range and Ample Stock

Product Coverage: Our inventory comprises over 2 million SKUs, covering general-purpose, industrial, automotive and military integrated circuits, as well as niche and hard-to-find variants.

Wide Range of Applications: Covering microcontrollers, memory, power management, communications, automotive electronics, sensors, artificial intelligence, 5G and all other categories.

Inventory Advantages: Real-time global stock synchronisation between our dual warehouses in Shenzhen and Hong Kong effectively resolves issues such as stock-outs, discontinued products and extended lead times.

3. Efficient Delivery and Rapid Response

Express Delivery: Standard orders delivered within 1–3 days; urgent orders dispatched within 4 hours and delivered within 24–48 hours.

Global Network: Branches in Hong Kong, Japan, Russia, Taiwan and other locations support one-stop global order fulfilment.

Flexible Transactions: A variety of trade methods and settlement currencies are available to meet the needs of domestic and international customers.

I. Edge Computing AI MCU: Solist-AI™ ML63Q2500 Series – Offline, On-Device Autonomous AI Chip

Core Positioning

The industry’s first 32-bit edge MCU capable of performing AI training and real-time inference locally without reliance on the cloud or an internet connection. Designed for industrial equipment, IoT devices and household appliances, it enables fault prediction, anomaly detection and equipment degradation monitoring, addressing the pain points associated with traditional cloud-based AI, such as high latency, data security risks and the inability to operate in offline scenarios.

Core Hardware Architecture (ML63Q253x/ML63Q255x)

Main Processor: 32-bit Arm Cortex-M0+ core, wide voltage range (2.3V–5.5V), supporting both battery and industrial DC power supplies

Dedicated AI accelerator AxlCORE-ODL: Three-layer neural network hard-coded into the hardware, delivering a 1,000-fold increase in processing speed compared to pure software AI, with power consumption of just 40 mW during full-speed AI operation; comprising only 20,000 logic gates, the chip’s footprint is highly compact, making it suitable for small-scale terminals. ROHM Semiconductor...

Built-in industrial control peripherals

64 MHz high-resolution three-phase motor PWM generator, supporting sensorless BLDC drive

Dual 12-bit high-speed ADCs, multiple analogue comparators and programmable operational amplifiers for direct acquisition of current, vibration, temperature and acoustic sensor data

Multiple industrial bus interfaces including CAN FD, SPI, I²C and UART, suitable for inverters, fans, compressors and production line equipment

Memory and Packaging: 128KB/256KB Flash options; compact 48-pin/64-pin TQFP/WQFN packages; ultra-thin 7mm × 7mm dimensions suitable for high-density PCBs

Key Product Advantages

Fully offline AI capability: Autonomously learns normal operating baselines on-site, outputs real-time anomaly scores; can be retrofitted to existing equipment without network modifications

Streamlined deployment: Comes with a visual AI modelling tool; no specialist algorithm engineers required; recognition models can be generated simply by collecting routine operational data from equipment

All-in-one integration: AI processing, motor control and sensor data acquisition are all handled by a single chip, eliminating the need for a dedicated AI coprocessor and simplifying hardware cabling

Highly Reliable Industrial Grade: Wide temperature range and anti-interference design, supporting 24-hour uninterrupted online monitoring

Typical Applications

Abnormal vibration detection in industrial fans and water pumps; fault early warning for variable frequency drives; ageing prediction for household appliance compressors; identification of abnormal sounds and lights in smart security systems; status monitoring of BMS in new energy storage systems; self-diagnosis of joint faults in humanoid robots

II. Power Electronics Control MCU: LogiCoA™ Analogue-Digital Converged Power-Specific MCU

Core Positioning

ROHM’s proprietary analogue-digital converged control architecture, LogiCoA™, is specifically developed for switching power supplies, inverters, servo motors and automotive power conversion equipment. It integrates digital computation with analogue sampling and PWM drive to form a coordinated chain, resolving industry challenges such as the insufficient performance of analogue peripherals in traditional general-purpose MCUs, slow power loop response and difficulties in suppressing EMI.

Key Hardware Features

Dedicated real-time control kernel RMOS: A real-time operating system optimised for power loops, enabling hardware-parallel processing of PWM, ADC sampling and protection logic, with microsecond-level loop response

Comprehensive suite of high-precision analogue peripherals

12-bit high-speed successive approximation ADC, 8-bit DAC and multiple high-speed analogue comparators, supporting closed-loop sampling of peak current, bus voltage and phase current

On-chip programmable gain amplifier: processes weak millivolt-level sensor signals without the need for external operational amplifiers

64 MHz ultra-high-resolution PWM array: supports independent configuration of interleaved parallel operation, phase shifting and dead time; compatible with mainstream topologies such as LLC, Boost, PFC and three-phase inverters; precisely suppresses switching losses and EMI

Comprehensive hardware protection unit: hardware-latch protection against overcurrent, overvoltage, overtemperature and short-circuit; fault response requires no CPU intervention, significantly enhancing the safety of power devices (SiC MOSFETs/IGBTs)

Ecosystem synergy: Seamless integration with ROHM’s full range of SiC power devices, isolated gate drivers, shunt sampling resistors and power management ICs; official reference designs provided for AC-DC converters, automotive inverters and industrial servo systems

Product Line Applications

Industrial Power Supplies: High-power PFC switching power supplies, bidirectional energy storage converters, UPS (uninterruptible power supplies), rectifier modules for telecommunications base stations

Motor Drives: 48V industrial BLDC servos, variable-frequency drives for fans and pumps, industrial robotic arm servo controllers

Automotive Power Electronics: On-board chargers (OBCs), low-voltage DC-DC converters, air-conditioning compressor inverters, xEV auxiliary power supplies

High-Power Consumer Equipment: PV micro-inverters, high-power charging station modules, welding machine control boards

Core Value

A single-chip solution replaces the multi-chip configuration of “general-purpose MCU + external operational amplifier + comparator + PWM driver”, reducing the number of peripheral components by over 30 per cent; it enhances loop control accuracy and optimises conversion efficiency, fully utilising the low-loss advantages of ROHM’s SiC power devices.

III. Voice Playback MCUs: LAPIS U8/U16 Core Single-Chip Audio Solutions

ROHM’s voice playback MCUs comprise the low-cost 8-bit ML610Q300 series and the high-performance 16-bit ML62Q2700 series. featuring built-in hardware audio decoding engines and power amplifiers. These represent the simplest integrated solutions for voice announcements in household appliances, security systems and portable medical devices, all based on ROHM’s proprietary LAPIS RISC cores, ensuring long-term stable supply and an extremely low development threshold.

1. 8-bit entry-level: ML610Q300 series (U8 Core)

Key Specifications

Proprietary 8-bit U8 RISC core, compatible with both 3V and 5V voltages, ultra-low static power consumption, suitable for battery-powered products

Hardware-integrated high-power speaker amplifier eliminates the need for an external audio amplifier chip and directly drives 8Ω speakers

Native support for ROHM’s proprietary HQ-ADPCM high-definition audio compression algorithm; voice data volume is reduced by 40% compared to traditional ADPCM whilst maintaining equivalent sound quality, ensuring clear and distortion-free voice announcements

Built-in high-capacity on-chip ROM for storing voice samples; voice announcements can be triggered in segments via simple serial commands

Suitable Applications: Fire alarms, temperature and humidity monitors, small handheld physiotherapy devices, alert tones for small household appliances, and access control buzzer announcements

2. 16-bit High Performance: ML62Q2700 Series (U16 Core)

Key Specifications

16-bit U16 high-performance RISC core, integrating hardware multipliers and dividers, and a CRC calculation unit, balancing voice playback with overall system logic control

Independent hardware voice playback engine; no need to write audio decoding code in software; long voice clips can be played back via simple register configuration

Extensive industrial peripherals: 12-bit high-precision ADC, LCD driver, I²C/SPI/UART, voltage monitoring, meeting the requirements for complex home appliance control

Complies with IEC 60730/60335 Class B functional safety standards; supports In-System Programming (ISP) for rapid updates to voice programmes on mass production lines

Data Flash is rewritable and supports segmented storage of multiple voice prompts and fault alarm audio

Suitable applications: Smart voice prompts for washing machines, refrigerators and air conditioners; smart toilets; fault voice alarms for industrial control cabinets; operating instructions for large medical equipment; and voice interaction for smart home control centres