A33G526RM

The Abov A33G526RM is a 32-bit microcontroller from the A33G52x series, built around an ARM Cortex-M3 core and optimized for main controller applications in household appliances. It combines a 75 MHz core with integrated analog and digital peripherals to address sensing, timing, motor drive and user-interface tasks in embedded appliance designs.

With 256 Kbytes of on-chip Flash and 24 Kbytes of SRAM, a broad set of communications interfaces and a 64-pin LQFP package supporting up to 60 I/O, the A33G526RM targets robust, compact control systems that operate across a 3.0–5.5 V supply range and an industrial temperature window.

Key Features

• Core — ARM Cortex‑M3 (32‑bit) 75 MHz processor core suitable for real-time control and application-level tasks.
• Memory 256 Kbytes of on-chip Flash program memory and 24 Kbytes of SRAM for code and data storage.
• Power and Voltage Supports 3.0–5.5 V operation to accommodate common appliance power domains.
• Timers and PWM Multiple timers including ten 16‑bit timers and one 32‑bit timer plus 16‑bit PWM with 8 channels for precise timing and motor control functions.
• Analog 12‑bit A/D converter with 10 channels for sensor acquisition and monitoring.
• Connectivity Standard serial interfaces including I2C, SPI and UART for peripheral and subsystem connectivity.
• Peripherals Integrated LED driver / high‑current port (14 channels) and watchdog timer (WDT) for system supervision and robust I/O drive.
• Oscillator Options Supports both internal and external oscillators for flexible clocking strategies.
• Package and I/O 64‑pin LQFP (10 × 10 mm, 0.5 mm pitch) with up to 60 general-purpose I/O pins for compact board layouts.
• Operating Range Industrial temperature range from −40 °C to 85 °C for demanding ambient conditions.

Typical Applications

• Home Appliances — Main controller for washing machines, refrigerators, air conditioners and similar appliances where integrated control, timing and user interface handling are required.
• Motor and Drive Control — PWM channels and multi-channel timers enable motor control and drive sequencing in appliance motors and actuators.
• Sensor Acquisition and Monitoring — 12‑bit ADC and multiple serial interfaces facilitate temperature, current and other sensor interfacing for closed‑loop control.
• User Interface and Lighting — LED driver/high‑current ports and rich I/O enable local displays, status LEDs and keypad handling.

Unique Advantages

• Integrated control peripherals: Combines ADC, PWM, multiple timers and LED driver on a single device to reduce BOM and simplify board design.
• Energy‑aware voltage range: Wide 3.0–5.5 V supply support permits direct integration with common appliance power rails.
• Ample program and data memory: 256 Kbytes Flash and 24 Kbytes SRAM provide headroom for feature-rich firmware and runtime data buffers.
• Flexible connectivity: I2C, SPI and UART enable device networking, sensor buses and external peripheral integration.
• Industrial reliability: Rated for −40 °C to 85 °C operation and available in a robust 64‑pin LQFP package for appliance environments.

Why Choose A33G526RM?

The A33G526RM positions itself as a performance‑focused, highly integrated microcontroller for household appliance main controllers and related embedded control systems. Its ARM Cortex‑M3 core at 75 MHz, substantial on‑chip memory and extensive peripheral set deliver the compute, I/O and analog resources needed for responsive control, sensing and user‑facing functions.

Designed for compact board layouts with up to 60 I/O in a 64‑LQFP package and supporting both internal and external clocking, the A33G526RM is suited to engineers seeking a single‑chip solution that balances processing capability, peripheral integration and industrial temperature operation. Documentation and family support from Abov Semiconductor facilitate design integration and firmware development for medium‑to‑high feature appliance controllers.

Request a quote or contact sales to discuss pricing, lead times and to obtain additional technical information for integrating the A33G526RM into your design.