A96T448GD2N

The A96T448GD2N is an 8-bit M8051-based microcontroller optimized for touch and smart proximity sensing, delivering an integrated solution for robust user interfaces. It combines a 2-clock-per-cycle 8051 core with dedicated touch channels and a water-shield mesh to support reliable touch operation in wet environments.

With on-chip Flash and SRAM, a multi-channel 12-bit ADC, multiple timers, PWM and serial interfaces, plus an 8-channel high-current LED port, the device targets compact embedded designs where integrated touch sensing, LED drive and sensor interfacing are required.

Key Features

• Core  M8051 8-bit CPU with 2-clock-per-cycle operation and selectable system frequencies (2, 4, 8, 16 MHz); HSIRC 16 MHz internal RC oscillator with ±1.5% (0–60°C) and ±3.5% (-40–105°C) accuracy.
• Memory  32 Kbytes of on-chip Flash (10,000 write endurance) and 2.5 Kbytes of SRAM for application code and runtime data.
• Touch Sensing & Water Shield  23-channel self-capacitive touch sensor with integrated 4-channel water-shield (mesh) to maintain reliable touch detection in wet conditions; touch key interrupt wake-up and 10 V conducted susceptibility immunity.
• Analog  12-bit A/D converter with 8 external input channels and 150 ksps sampling rate, plus an internal reference input channel for precise sensor measurement.
• Timers & PWM  Comprehensive timing resources including Basic Interval Timer, Watchdog Timer, one 8-bit timer and five 16-bit timers, plus six 8-bit PWM channels for motor, LED dimming or power control tasks.
• Interfaces  I2C ×1, SPI ×2 and USART ×2 provide flexible connectivity for sensors, peripherals and serial communications.
• GPIO & LED Drive  Up to 26 general-purpose I/O lines with an 8-channel high-sink current LED port for direct LED drive.
• Power & Reliability  Wide operating voltage range (2.0–5.5 V at up to 16 MHz) with multiple reset and low-voltage indicator levels; STOP/IDLE power-down modes and on-chip WDT oscillator for robust operation.
• Package & Temperature  Supplied in a 28-pin SOP package (28SOP) and specified for operation from -40 °C to 105 °C.

Typical Applications

• Touch user interfaces  Capacitive touch panels and keypads for appliances and consumer devices requiring reliable sensing in the presence of moisture.
• Smart proximity sensing  Proximity detection and wake-up functions for low-power interface control and convenience features.
• LED indication and display control  Direct high-current LED driving for status indicators, backlighting and simple display functions.
• Sensor interfacing and control  Analog sensor acquisition using the 12-bit ADC combined with timers and PWM for control loops and actuator drive.

Unique Advantages

• Integrated touch plus water shielding: 23 touch channels with a 4-channel water-shield mesh reduce BOM and ensure reliable operation in wet environments.
• Compact, field-ready memory and CPU: 32 KB Flash and 2.5 KB SRAM on an 8-bit M8051 core provide a familiar development model for embedded UI firmware.
• Rich mixed-signal capability: 12-bit ADC (8 channels, 150 ksps) and multiple timers/PWM simplify sensor acquisition and real-time control without external components.
• Direct LED drive: 8 high-sink current LED ports reduce the need for separate LED driver ICs in status and lighting applications.
• Wide supply and temperature range: 2.0–5.5 V operation (up to 16 MHz) and -40 °C to 105 °C rating support a broad set of embedded environments.
• Flexible interfaces: I2C, SPI and multiple USART channels enable straightforward integration with peripherals and system controllers.

Why Choose A96T448GD2N?

The A96T448GD2N is positioned as an integrated MCU for designers who need dependable capacitive touch and proximity sensing combined with mixed-signal peripherals and LED drive in a compact package. Its M8051 core, on-chip Flash/SRAM and comprehensive peripheral set make it suitable for cost- and space-sensitive embedded HMIs and sensor-driven products.

Choose the A96T448GD2N when you require a single-chip solution that reduces external components while delivering robust touch performance in wet conditions, flexible serial interfaces, and sufficient on-chip resources for typical appliance and consumer-device control tasks.

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