A33M114RL

The A33M114RL is a 32‑bit high‑performance microcontroller based on an ARM Cortex‑M3 core, optimized for low‑power, motor‑centric embedded applications. It targets home‑appliance and consumer systems that require integrated motor control, fast sensor feedback and multiple peripheral interfaces.

With a maximum operating frequency of 96 MHz and a rich mix of analog and digital peripherals, the A33M114RL delivers a compact, integrated platform for inverter motor control, sensor acquisition and system control in a 64‑pin LQFP package.

Key Features

• Core  ARM Cortex‑M3 core running up to 96 MHz for responsive control and deterministic interrupt handling.
• Memory  128 Kbytes of Flash program memory with data‑flash support and 16 Kbytes of SRAM for application code and runtime data.
• Power & Clock  Wide operating voltage range (2.5–5.5 V) with internal and external oscillator support and multiple power modes (Run, Sleep, Stop).
• High‑speed A/D  12‑bit A/D converters capable of 1.3 MSPS and up to 16 channel inputs for accurate motor‑feedback and sensor acquisition.
• Motor PWM  Two 16‑bit 3‑phase PWM generators designed for inverter motor control and precision drive timing.
• Analog front end  Integrated analog blocks including four op‑amps and four comparators for signal conditioning and protection functions.
• Timers & DMA  One 32‑bit timer, eight 16‑bit general purpose timers, a watchdog timer and an 8‑channel DMA controller for real‑time scheduling and low CPU overhead data movement.
• Communications  Multiple serial interfaces including 4 × UART, 2 × SPI, 2 × I2C, QEI and additional system interfaces to support peripherals and sensor networks.
• System reliability & development  CRC generator, Nested Vector Interrupt Controller (NVIC) and SWD development/debug support for robust operation and easier development.
• Package & Environment  64‑pin LQFP surface‑mount package with operating temperature range from −40 °C to +105 °C, suitable for commercial‑grade embedded systems.

Typical Applications

• Home Appliances  Inverter and motor control for refrigerators, washing machines, dryers and dishwashers where integrated PWM and ADC support is required.
• Pumps & Fans  Closed‑loop motor control and speed regulation using high‑speed ADC feedback and 3‑phase PWM generators.
• Small Kitchen Appliances  Blenders and similar devices that need precise motor control, sensor interfacing and reliable system timing.
• Water Treatment & Purification  Pump control and sensor monitoring with robust analog front end and multiple communications for system telemetry.

Unique Advantages

• Integrated motor control peripherals: Two 16‑bit 3‑phase PWM generators combined with fast 12‑bit ADC inputs reduce external components for inverter motor designs.
• Compact system memory footprint: 128 KB Flash and 16 KB SRAM provide sufficient on‑board storage for control firmware while keeping BOM and board area low.
• Rich peripheral mix: Multiple UART/SPI/I2C channels, QEI and analog resources simplify system integration for sensors, HMIs and communication modules.
• Deterministic real‑time operation: Cortex‑M3 core at 96 MHz with NVIC and DMA support enables responsive control loops and reduced CPU overhead.
• Designed for embedded environments: Wide supply range (2.5–5.5 V) and −40 °C to +105 °C operating range align with commercial‑grade appliance and industrial applications.

Why Choose A33M114RL?

The A33M114RL balances performance and integration for motor‑centric embedded designs. Its Cortex‑M3 core, high‑speed ADCs, dual 3‑phase PWM engines and a broad set of timers and communications interfaces make it well suited for appliance and pump/fan control where compact BOM and reliable real‑time control are priorities.

This device is ideal for engineers building inverter motor controllers, sensor‑driven systems and compact appliance electronics that require a cohesive set of analog and digital peripherals in a 64‑LQFP package with commercial operating temperature and broad supply voltage support.

Request a quote or contact sales to discuss volume pricing, lead times and available package options for the A33M114RL.