A96T448LUN

The Abov A96T448LUN is an 8-bit M8051-based microcontroller optimized for touch-enabled human interfaces and appliance control. It combines on-chip capacitive touch sensing with MCU peripherals, analog conversion and an integrated high-current LED driver to simplify user-interface and appliance designs.

Targeted at appliance and human-interface applications, the device provides robust touch sensing (including water shield capability and 10 V conducted susceptibility immunity), on-chip program and data memory, a 12-bit ADC, multiple timers/PWM channels and flexible serial interfaces — all in a compact 24‑pin QFN package.

Key Features

• Core & Performance — 8-bit M8051 CPU with 2‑clock per cycle operation and selectable system frequencies including 2, 4, 8 and 16 MHz (HSIRC 16 MHz available on‑chip).
• On‑Chip Memory — 32 Kbytes of Flash program memory (10,000 write endurance) and 2.5 Kbytes of SRAM for application code and runtime data.
• Touch & Sensing — 19 touch key channels with water shield (4‑channel mesh) support and 10 V conducted susceptibility (CS) immunity; touch key interrupt wake‑up supported for low‑power responsiveness.
• Analog & Data Conversion — 12‑bit A/D converter with multiple external input channels and an internal reference input for precise sensor interfacing.
• Timers & PWM — Basic Interval Timer, Watchdog Timer, one 8‑bit timer and multiple 16‑bit timers plus 8‑bit PWM channels for timing, control and motor/LED dimming tasks.
• LED Driver & GPIO — High‑sink LED driver with 8 channels and up to 22 general‑purpose I/O pins in the 24‑pin QFN package for direct LED and peripheral control.
• Interfaces — On‑chip I2C, SPI and USART interfaces (multi‑channel) to connect displays, sensors and external peripherals.
• Power & Clock — Wide operating voltage range (2.0 V to 5.5 V at 16 MHz; 2.7 V to 5.5 V for 1.5% IRC and 10 V CS touch operation); on‑chip RC oscillators and power‑down modes (STOP/IDLE).
• Reliability & Temperature — Watchdog Timer, multi‑level reset and low‑voltage indicators; specified operating temperature −40 °C to +85 °C.
• Package — Compact 24QFN surface‑mount package supporting up to 22 usable I/O pins for space‑constrained designs.

Typical Applications

• Home Appliances — Touch panels and control interfaces for washing machines, ovens and kitchen appliances where water‑tolerant touch sensing and direct LED drive reduce system BOM.
• Consumer Human‑Machine Interfaces — Keypads and control panels for thermostats, remote controllers and small appliances requiring responsive touch keys and low‑power wake capability.
• LED Control & Indication — Direct high‑sink LED driving and PWM support for status indicators, backlighting and simple lighting sequences.
• Sensor Front‑End — 12‑bit ADC and multiple timers for analog sensor sampling, signal conditioning and timing in compact embedded systems.

Unique Advantages

• Integrated Touch with Water Shield: 19 touch channels plus 4‑channel mesh water shield and 10 V CS immunity enable robust capacitive UIs in moist environments.
• On‑Chip High‑Current LED Driver: Eight high‑sink LED channels reduce external driver components for simplified indicator and lighting designs.
• Complete MCU Peripherals: 32 KB Flash, 2.5 KB SRAM, 12‑bit ADC, multiple timers and serial interfaces deliver a balanced feature set for embedded HMI and appliance control.
• Wide Voltage Range: 2.0 V–5.5 V operation (with defined conditions for precision touch operation) supports flexible power-rail options across product variants.
• Low‑Power & Wake Capability: STOP/IDLE power modes plus touch key interrupt wake‑up help minimize standby consumption while preserving instant responsiveness.
• Compact Package & Industrial Temperature: 24‑pin QFN package with −40 °C to +85 °C rating suits space‑constrained, temperature‑challenging applications.

Why Choose A96T448LUN?

The A96T448LUN delivers a tightly integrated solution for designers of touch‑enabled appliances and consumer HMI products. Its combination of a proven M8051 core, on‑chip flash and SRAM, robust capacitive touch features (including water shield and 10 V CS immunity), and an integrated 8‑channel LED driver reduces external components and simplifies firmware and PCB design.

This device is well suited to teams needing a compact, reliable microcontroller with focused I/O, analog and timing resources for appliance controls, user interfaces and LED‑driven indicators. The 24‑pin QFN package and extended temperature range support deployment in compact, real‑world environments while maintaining a clear upgrade path within the A96T448 family.

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