A33G538VL

The A33G538VL is part of the A33G53x series and is designed as the main controller for household appliances. It integrates a 32-bit ARM Cortex‑M3 core running up to 75 MHz with 512 Kbytes of code flash, 32 Kbytes of data flash and 24 Kbytes of SRAM to support embedded control and interface tasks.

With up to 90 I/O pins and a broad set of on‑chip peripherals including ADC, multiple timers, PWM, serial interfaces, the A33G538VL provides the integration and performance needed for appliance control, sensor acquisition and user interface functions.

Key Features

• Core and Performance ARM Cortex‑M3 32‑bit core operating up to 75 MHz, suitable for real‑time control and application processing.
• Memory 512 Kbytes code flash with Dual Bank support and Read‑While‑Write capability, 32 Kbytes data flash and 24 Kbytes SRAM for application and data storage. Flash memory includes ECC for improved reliability.
• Mixed‑Signal & Analog 12‑bit SAR ADC with up to 16 channels and 70 ksps conversion rate, enabling multi‑channel sensor acquisition and analog monitoring.
• Timers and PWM Ten 16‑bit timers, one 32‑bit timer, eight 16‑bit PWM generators and a 32‑bit free‑run timer provide extensive timing, capture and PWM capabilities.
• Serial Connectivity Multiple serial interfaces including 4 × UART, 2 × SPI, 2 × I2C for peripheral, sensor and host communication.
• GPIO and LED Drive Up to 90 general‑purpose I/O pins with interrupt capability and a 16‑channel LED driver / high‑current port for direct drive of indicators and displays.
• Reliability and System Control Watchdog timer, low‑voltage detection (LVD) with reset/interrupt and Flash ECC help maintain robust operation.
• Clocking and Power Management Multiple clock sources (internal 16 MHz IOSC, 1 MHz ring oscillator, external main oscillator 4–10 MHz, 32.768 kHz sub crystal) with PLL up to 75 MHz and low‑power modes (SLEEP, DEEP‑SLEEP). Supports POR/LVR/LVI.
• Operating Range and Package Operates from 3.0 V to 5.5 V and across −40 °C to 85 °C. Available in a 100‑LQFP 14 × 14 mm (0.5 mm pitch) surface‑mount package.

Typical Applications

• Home Appliances Primary controller for household appliances, combining CPU performance, memory and peripherals to manage control logic and device coordination.
• Sensor Acquisition and Control Multi‑channel 12‑bit ADC, timers and serial interfaces allow accurate sensor readout, timing, and communication with peripherals.
• User Interface and Indicator Drive High I/O count plus a 16‑channel LED driver/high‑current port make the device suitable for handling buttons, displays and indicator LEDs.

Unique Advantages

• Balanced performance and integration: 75 MHz Cortex‑M3 core with 512 KB flash and 24 KB SRAM delivers compute and memory headroom for embedded appliance applications.
• Dual‑bank flash with ECC: Enables reliable firmware updates and improved code integrity for fielded devices.
• Rich peripheral set: Extensive timers, PWM channels, ADC and multiple serial interfaces reduce external component count and simplify system design.
• Flexible clocking and low‑power options: Internal and external oscillators with PLL plus SLEEP/DEEP‑SLEEP modes support power‑optimized designs.
• High I/O density and LED drive: Up to 90 GPIOs and a 16‑channel high‑current port support complex interfaces and direct indicator driving.
• Wide voltage and temperature range: 3.0–5.5 V operation and −40 °C to 85 °C rating for broad deployment in consumer environments.

Why Choose A33G538VL?

The A33G538VL combines a capable Cortex‑M3 CPU with extensive on‑chip memory and peripherals tailored to household appliance control. Its combination of ADC, timers, PWM, multiple serial interfaces and up to 90 I/O pins provides an integrated platform that reduces BOM and simplifies board design.

As a member of the A33G53x series, the device offers scalability across code flash sizes and package options while delivering features that support reliable, fielded appliance designs within the specified voltage and temperature ranges.

If you would like pricing, availability or a formal quote for A33G538VL, submit an inquiry and our team will respond with detailed commercial information and lead‑time options.