A96T448GRN

The A96T448GRN is an 8-bit touch microcontroller built around an M8051-compatible core, designed for capacitive touch and proximity sensing with integrated water-shield capability. It combines a 23-channel self-capacitive touch engine (with 4-channel mesh water shield and 10 V conducted susceptibility immunity) with on-chip memory, ADC, timers and multiple serial interfaces to simplify user-interface and control system designs.

With a 16 MHz internal high-speed RC oscillator, 32 Kbytes of Flash, 2.5 Kbytes of SRAM, an 8-channel 12-bit ADC, and a high-current 8-channel LED port, the device targets touch-enabled consumer and appliance controls that require robust sensing, mixed-signal integration and compact 28‑TSSOP packaging for –40 to +85 °C operation.

Key Features

• Core & Performance  M8051 8-bit CPU, 8051-compatible with 2-clock-per-cycle operation and selectable system clocks up to 16 MHz (Fsys options: 2, 4, 8, 16 MHz).
• Flash & RAM  32 Kbytes on-chip code Flash (endurance 10,000 cycles) and 2.5 Kbytes SRAM for program and data storage.
• Touch Sensing & Water Shield  23-channel self-capacitive touch sensor with 4-channel mesh water shield and touch-key interrupt wake-up; 10 V conducted susceptibility (CS) immunity for robust sensing in wet environments.
• Analog & Data Conversion  12-bit A/D converter with 8 external input channels plus one internal reference channel for accurate sensor and analog signal acquisition.
• Timers & PWM  Basic Interval Timer (BIT), Watchdog Timer (WDT), one 8-bit timer (T0) and five 16-bit timers (T1–T5); 8-bit PWM function with 4 channels for motor/LED or timing control.
• Interfaces & I/O  I2C ×1, SPI ×2 and USART ×2 serial interfaces; up to 26 general-purpose I/O pins with 8 high-sink current ports for driving LEDs and indicators.
• Power, Clock & Low-Power Modes  Operating voltage 2.0–5.5 V at 16 MHz (2.7–5.5 V available for 1.5% IRC accuracy and CS 10 V touch); on-chip HSIRC 16 MHz and LSIRC 32 kHz oscillators; STOP/IDLE power-down modes and on-chip WDT oscillator (32 kHz).
• System Reliability  Power-On Reset, multi-level Low-Voltage Reset (4 levels) and Low Voltage Indicator (4 selectable levels) for controlled start-up and fault detection.
• Package & Temperature Range  28‑TSSOP surface-mount package, specified for industrial temperature range –40 °C to +85 °C.

Typical Applications

• Home Appliances  Touch-control panels and user interfaces for appliances where water-resistant sensing and compact packaging are required.
• Consumer Electronics  User-interface controllers for devices needing multiple touch keys, LED indication and mixed-signal I/O integration.
• Lighting & Indicator Control  LED-driven status and dimming applications leveraging the 8-channel high-sink LED port and built-in PWM channels.
• Smart Controls & Embedded HMI  Compact embedded human-machine interfaces combining capacitive touch sensing, ADC inputs and multiple timers for event handling.

Unique Advantages

• Integrated Touch and Water Shield: 23-channel capacitive sensing with a 4-channel mesh water shield and 10 V CS immunity reduces external filtering and improves reliability in damp environments.
• Complete Mixed-Signal Peripherals: On-chip 12-bit ADC (8 channels), multiple timers and PWM outputs provide the analog and timing resources needed without additional ICs.
• Compact, Robust Packaging: 28‑TSSOP surface-mount package rated –40 °C to +85 °C enables deployment in space-constrained, industrial-temperature designs.
• Flexible Serial Connectivity: I2C, SPI and dual USART channels allow easy integration with sensors, displays and system controllers.
• Designed for Reliable Start-Up and Safety: Multi-level reset and low-voltage indicators support controlled power sequencing and system monitoring.
• On-Chip Oscillators and Low-Power Modes: Internal HSIRC/LSIRC oscillators and STOP/IDLE modes simplify clocking and support energy-efficient system states.

Why Choose A96T448GRN?

The A96T448GRN positions itself as a focused solution for touch-enabled embedded designs that require reliable capacitive sensing, water-shield protection and a compact integration of mixed-signal peripherals. Its M8051 core, 32 Kbytes Flash and 2.5 Kbytes SRAM, combined with a rich set of timers, ADC channels and serial interfaces, make it well suited to control panels, user interfaces and indicator systems where a small BOM and straightforward integration are priorities.

With wide supply-voltage support, internal oscillators, multi-level reset and industrial temperature rating, the device offers long-term stability and predictable behavior for product lines that require robust sensing and control across varied operating conditions.

Request a quote or submit a product inquiry to receive pricing, availability and technical assistance for integrating the A96T448GRN into your next touch-enabled design.