A96T448FDN

The A96T448FDN is an 8-bit touch microcontroller built around an M8051 core, optimized for touch-key user interfaces with integrated water shielding. It combines touch sensing, analog conversion, timers and PWM, and a high-current LED port to support responsive, robust human-machine interfaces in consumer and appliance designs.

With 32 Kbytes of on-chip Flash, 2.5 Kbytes of SRAM, a 12-bit A/D converter and operation across 2.0–5.5 V, the device delivers the integration and system-level features needed for compact, reliable touch-enabled products operating from –40 °C to +85 °C.

Key Features

• Core  M8051 8-bit CPU (8051-compatible, 2-clock per cycle) with selectable system clocks up to 16 MHz.
• Memory  32 Kbytes of on-chip Flash program memory (10,000 write endurance) and 2.5 Kbytes of SRAM for application code and data.
• Power and Voltage  Wide operating voltage range from 2.0 V to 5.5 V (2.7 V–5.5 V for certain touch/IRC accuracy modes), supporting battery and line-powered designs.
• Timers & PWM  Multiple timers including five 16-bit and one 8-bit timers, plus four 8-bit PWM channels for precise timing, control and LED dimming.
• Analog & Touch  12-bit A/D converter with 5 channels (device-specific), and 15-channel self-capacitive touch sensing with dedicated water-shield functionality (4-channel mesh).
• Interfaces  Integrated serial communication with I2C and USART interfaces for sensor and peripheral connectivity.
• GPIO & High-Current Port  Up to 18 I/O pins with an 8-channel high-sink current port suitable for driving LEDs and indicator circuits.
• System Reliability  On-chip watchdog timer, power-on reset and low-voltage reset/indicator levels to support robust system behavior.
• Clocking & Low Power  Internal RC oscillators including a 16 MHz HSIRC and low-frequency options; support for STOP/IDLE power-down modes.
• Package & Temperature  Supplied in a 20-SOP surface-mount package and specified for operation from –40 °C to +85 °C.

Typical Applications

• Home Appliances  Touch-key panels and user interfaces with water-shielding for kitchen and laundry controls.
• Consumer Electronics  Capacitive touch controls and LED indicators in small appliances and handheld devices.
• White Goods & Control Panels  User interface management for ovens, refrigerators and HVAC controllers requiring reliable touch sensing and status indication.
• Industrial HMI  Simple operator panels and touch switches where compact integration and robust reset/watchdog features are required.

Unique Advantages

• Integrated Touch and Water Shield: 15-channel capacitive touch engine with a 4-channel water-shield mesh provides reliable touch sensing in wet or high-humidity environments.
• System-Level Integration: On-chip Flash, SRAM, ADC, multiple timers, PWM and high-current ports reduce external components and simplify PCB design.
• Flexible Power Operation: 2.0–5.5 V operating range enables use across battery and mains-powered platforms and supports multiple voltage domains.
• High-Resolution Sensing: 12-bit A/D conversion for accurate sensor readings and analog input handling in control applications.
• Robust Control Peripherals: Multiple 16-bit timers, watchdog and power reset features help implement reliable timing, safety and recovery mechanisms.
• Production-Ready Mechanical Options: Available in a 20-SOP surface-mount package rated for industrial temperature operation (–40 °C to +85 °C).

Why Choose A96T448FDN?

The A96T448FDN positions itself as a compact, integrated microcontroller for touch-key applications where reliable capacitive sensing and water immunity are required. Its M8051 core, ample on-chip Flash and SRAM, and a comprehensive set of peripherals (ADC, timers, PWM, serial interfaces and a high-current LED port) enable complete UI and control implementations with minimal external parts.

This device is suitable for designers of home appliances, consumer products and control panels seeking a balance of integration, analog sensing capability and industrial-temperature operation. Built-in reset, watchdog and low-voltage features contribute to long-term robustness in embedded systems.

Request a quote or submit an inquiry for pricing and availability to receive additional technical details and volume options for A96T448FDN.