A31T216SNN

The A31T216 is a 32-bit touch-sensing microcontroller from Abov built around an ARM Cortex‑M0+ core running at 48 MHz. It integrates flash and SRAM, multiple communication interfaces, analog conversion and display/touch support to serve designs that combine user interfaces and embedded control.

Targeted at consumer and appliance applications that require both touch sensing and display control, the A31T216 delivers a compact, low-voltage solution with on-chip peripherals and power-management features for streamlined system designs.

Key Features

• Core  ARM Cortex‑M0+ 32‑bit core operating at 48 MHz for deterministic embedded control and user-interface tasks.
• Memory  256 Kbytes of on‑chip Flash and 16 Kbytes of SRAM to host application code and runtime data without external memory.
• Voltage Range  Operates from 1.8 V to 5.5 V, enabling use in a variety of low‑voltage and standard battery-powered systems.
• Touch & Display  Up to 21 touch key channels and integrated LCD and LED driver functionality (as documented in the device datasheet) for touch-enabled display designs.
• Analog Conversion  12‑bit ADC with 9 channels and up to 150 ksps to handle sensor inputs and analog measurements.
• Timers & PWM  Multiple timers including 16‑bit timers and 16‑bit PWM for timing, control and dimming applications.
• Connectivity  On‑chip serial interfaces including I2C and USART, plus serial peripheral interfaces shown in the device documentation for peripheral and display communications.
• System Peripherals  Watchdog timer, Watch timer, POR, LVR/LVI, CRC generator and DMA support referenced in the datasheet for system reliability and efficient data movement.
• Clock & Power  Internal HSI 32 MHz oscillator, PLL and support for external/internal oscillators, plus SLEEP and POWER‑DOWN modes to manage power consumption.
• I/O and Packaging  Up to 40 general-purpose I/O pins in a 44‑LQFP package (10 × 10 mm, 0.8 mm pitch) optimized for surface‑mount assembly.
• Operating Range  Industrial temperature range from -40 °C to 85 °C suitable for a wide range of embedded environments.

Typical Applications

• Home Appliances  Touch keypad and display control for consumer appliances, using the integrated touch key channels and LCD/LED drivers to simplify interface design.
• User Interface Controllers  Human‑machine interface nodes that require responsive touch sensing, display driving and local control logic.
• Sensor Hubs  Analog sensor acquisition and local processing using the 12‑bit ADC, timers and serial interfaces to aggregate sensor data.
• Portable and Battery‑Powered Devices  Low‑voltage operation (1.8–5.5 V) and sleep/power‑down modes make the device suitable for battery‑operated embedded systems.

Unique Advantages

• Integrated touch-plus-display support: Combines up to 21 touch key channels with LCD and LED driver functionality (documented in the datasheet) to reduce external components for interface designs.
• Solid on‑chip memory footprint: 256 Kbytes Flash and 16 Kbytes SRAM provide ample space for UI firmware and application code without external memory.
• Flexible power operation: Wide supply range (1.8–5.5 V) and low-power modes enable deployment across battery and mains‑driven products.
• Rich peripheral set: ADC, timers, PWM, watchdog, DMA and CRC support common embedded control and reliability needs directly on chip.
• Compact package with many I/Os: 44‑LQFP (10 × 10 mm) with up to 40 I/Os helps preserve PCB area while providing connectivity for sensors, display and controls.
• Designed for embedded robustness: POR, LVR/LVI and documented reset/clock management features help ensure predictable operation across power and clock conditions.

Why Choose A31T216SNN?

The A31T216SNN positions itself as a practical, integrated microcontroller for designs that combine touch sensing and display control with embedded application logic. With an ARM Cortex‑M0+ core, substantial on‑chip memory and a broad set of peripherals (ADC, timers, PWM, watchdog, DMA, LCD/LED drivers and serial interfaces), it reduces component count and simplifies firmware integration.

This part is suited for developers and OEMs building consumer and appliance interfaces, portable electronics, or sensor‑based controllers that require a compact surface‑mount package, wide supply voltage flexibility and documented power and clock management features for reliable field operation.

Request a quote or submit an inquiry to receive pricing and availability for the A31T216SNN and to discuss how it can fit into your next touch‑enabled design.