A96T218GDN

The A96T218GDN is an 8-bit CMOS single-chip microcontroller based on a high-performance M8051 CPU, integrating 32 Kbytes of Flash and a comprehensive set of analog and digital peripherals. It is engineered for embedded user-interface and sensor applications that require capacitive touch, LED driving, mixed-signal I/O and flexible connectivity in a compact surface-mount package.

With an internal 16 MHz oscillator, on-chip power supervisors (POR, BOD, LVI), multiple timers, ADC and communication interfaces, the A96T218GDN delivers a highly integrated platform for efficient, low-component-count designs across operating voltages from 2.0 V to 5.5 V and temperatures from -40 °C to 85 °C.

Key Features

• Core  High-performance M8051 8-bit CPU with on-chip oscillator supporting 16 MHz operation for deterministic embedded control.
• Memory  32 Kbytes of on-chip Flash program memory with code area protection, plus 256 bytes SRAM and 1,792 bytes XRAM (total 2 Kbytes RAM) for application and data storage.
• Analog  8-channel 12-bit A/D converter with 125 ksps throughput for precise sensor interfacing and signal measurement.
• Capacitive Touch  24-channel self-capacitive touch switch with 16-bit sensing resolution, fast initial self-calibration and bias-calibration to improve SNR for robust touch key designs.
• LED Driver  Integrated LED driver supporting 8 COM × 20 SEG configuration for multi-segment displays and backlight control.
• Timers & PWM  Three 16-bit timer/counters and three 16-bit PWM channels, plus a 32-bit free-run counter for timing, motor or dimming control and precise PWM outputs.
• Audio & Alerts  Two-channel buzzer driver for audible alerts and simple sound generation.
• Connectivity  I²C and dual-channel USART interfaces for serial peripherals and system communications.
• Reliability & Reset  On-chip Power-On Reset (POR), Brown-Out Detection (BOD), Low Voltage Indicator (LVI) and Watchdog Timer (WDT) to protect operation under varying supply conditions.
• Power Management  Multiple power saving modes to reduce energy consumption in battery-powered and low-power systems.
• Package & I/O  28-SOP (300 mil) surface-mount package with up to 26 programmable I/O lines available in this package option.
• Operating Conditions  Wide operating voltage range and industrial temperature support: 2.0 V–5.5 V (@16 MHz), 2.7 V–5.5 V (with Touch & LED Driver) and -40 °C to 85 °C.

Typical Applications

• Touch Key Interfaces  Capacitive touch panels and keypad controls using the 24-channel touch engine with fast calibration and high sensing resolution.
• LED Display & Lighting Control  Multi-segment displays and backlight systems leveraging the integrated 8 COM × 20 SEG LED driver and PWM resources for dimming.
• Sensor Hubs & Data Acquisition  Multi-channel 12-bit ADC with 125 ksps throughput for temperature, light and analog sensor interfacing in compact systems.
• Consumer & Portable Devices  Low-power modes, on-chip oscillators and audio buzzer support make the device suitable for compact battery-operated products requiring user interfaces.

Unique Advantages

• Highly integrated platform: Combines Flash, RAM, ADC, touch engine, LED driver and multiple timers on one chip to reduce BOM and PCB area.
• Touch and display in one MCU: On-chip 24-channel capacitive sensing and 8 COM × 20 SEG LED driving simplify HMI designs without external controllers.
• Flexible analog front end: 12-bit ADC (8 channels, 125 ksps) supports accurate sensor sampling for control and monitoring tasks.
• Robust system supervision: POR, BOD, LVI and WDT provide protection and recovery mechanisms for reliable operation across supply and environmental conditions.
• Compact surface-mount package: 28-SOP footprint with up to 26 I/O lines balances I/O capability with small-board integration.
• Design-ready timing and audio: Multiple 16-bit timers, 16-bit PWMs and dual buzzer channels enable precise timing, motor/dimmer control and audio alerts without external components.

Why Choose A96T218GDN?

The A96T218GDN positions itself as a compact, integrated MCU for designers who need capacitive touch control, LED driving and mixed-signal I/O in a single surface-mount device. Its M8051 core, 32 Kbytes of Flash and combined SRAM/XRAM memory structure provide a familiar development environment for embedded applications with modest code and data footprint requirements.

Engineered for HMI-focused and sensor-driven products, the A96T218GDN delivers system-level functions—touch sensing, LED segmentation, ADC, timers and communication—reducing external component count and simplifying board design while supporting industrial temperature and a wide supply voltage range.

Request a quote or submit an inquiry to our sales team to discuss pricing, lead times and design support for the A96T218GDN.