A96T418LDN

The A96T418LDN is an M8051-based 8-bit microcontroller optimized for cost-effective embedded control and touch-enabled user interfaces. It combines a 16 MHz M8051 core with 32 Kbytes of on-chip FLASH, integrated RAM, multiple timers and a robust set of analog and I/O peripherals for compact system designs.

Designed for embedded applications that require capacitive touch sensing, LED driving and mixed-signal control, the A96T418LDN delivers a high level of integration to simplify board design and reduce BOM count while supporting operation from 2.0 V to 5.5 V and ambient temperatures from −40 °C to +85 °C.

Key Features

• Core M8051 8-bit CISC core running up to 16 MHz for familiar 8051-based firmware and predictable real-time behavior.
• Memory 32 Kbytes on-chip FLASH program memory with 2 Kbytes data memory (256 bytes IRAM and 1792 bytes XRAM) for application code and data storage.
• Touch and LED Integration Self-capacitive touch sensing capability (device-family up to 20 channels; A96T418LDN provides 17 channels) and an integrated LED driver supporting up to 8 COM × 16 SEG with constant-current segment control (4 levels).
• Analog and Data Conversion 12-bit A/D converter with 8 external input channels plus one internal reference channel for precise sensor interfacing and monitoring.
• Timers and PWM Multiple timers including a Basic Interval Timer and Watchdog Timer, one 8-bit timer and five 16-bit timers suitable for PWM, timing and event counting.
• Connectivity Flexible serial interfaces via USI supporting USART, SPI and I²C, plus standalone UART/USART for peripheral and host communications.
• System Reliability On-chip Power-On Reset (POR), Low Voltage Reset (LVR) with multi-level detection, Low Voltage Indicator and a Watchdog Timer for robust system supervision.
• Clock and Power Internal and external oscillator support with on-chip clock circuitry. Operating voltage ranges: 2.0 V–5.5 V at 16 MHz; 2.7 V–5.5 V for touch, ADC and LED driver operation.
• I/O and Package Up to 22 general-purpose I/O pins and available in a 24-SOP (300 mil) surface-mount package; industrial temperature rating of −40 °C to +85 °C for a wide range of embedded environments.

Typical Applications

• Home appliances — Implement capacitive touch control panels and LED status indicators with the integrated touch engine and LED driver to simplify front-panel electronics.
• Consumer devices — Use the 12-bit ADC and serial interfaces for sensor monitoring, user interface control and peripheral communications in compact consumer products.
• Industrial control — Leverage multiple 16-bit timers, watchdog and reset features for reliable timed control and supervisory functions in control systems.
• Human-machine interfaces (HMIs) — Combine touch sensing, debounced input handling and LED matrix driving to build intuitive user interfaces with minimal external components.

Unique Advantages

• Highly integrated touch and display support: On-chip self-capacitive touch sensing and an 8COM × 16SEG LED driver reduce external components and simplify PCB routing.
• Balanced memory and performance: 32 KB FLASH with 2 KB of RAM (IRAM/XRAM split) provides adequate code and data space for UI-rich embedded applications on a 16 MHz M8051 core.
• Flexible analog front end: 12-bit ADC with multiple external channels and an internal reference channel enables accurate sensor interfacing without additional converters.
• Robust system supervision: Integrated POR, multi-level LVR, low-voltage indicator and watchdog timer improve system resilience and safety.
• Wide supply and temperature range: 2.0 V–5.5 V operation (touch/ADC/LED functions supported from 2.7 V) and −40 °C to +85 °C rating accommodate a broad range of embedded environments.

Why Choose A96T418LDN?

The A96T418LDN positions itself as an integrated microcontroller platform for designers who need capacitive touch, LED driving and mixed-signal control in a compact 24‑SOP package. Its combination of an M8051 core, 32 KB FLASH, comprehensive timers, 12‑bit ADC and multi-channel touch engine delivers a practical balance of performance and integration for cost-sensitive embedded systems.

This device is well suited for projects that require a consolidated MCU solution to reduce BOM complexity and PCB size while retaining the configurable peripherals and system supervision features expected in reliable embedded products.

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