A96T3A6EFN

The A96T3A6EFN is a smart capacitive touch and proximity sensor microcontroller based on an 8051 core. It combines single-touch, slide-touch and proximity detection in a compact, low-power package tailored for TWS and smartphone applications.

Designed for space- and power-constrained portable designs, the device delivers integrated touch-key support, enhanced waterproof capability and an I2C interface for system control and configuration.

Key Features

• Core & Performance — 8051 core running at 16,000,000 Hz (16 MHz) for control and touch processing.
• Memory — 20 Kbytes of FLASH program memory and 2 Kbytes of RAM for firmware and runtime data.
• Power Supply — Operates from 1.7–3.6 V, suitable for a range of portable power schemes.
• Touch and Proximity — Integrated single touch, slide touch and proximity detection with support for 7 touch-key channels and an enhanced waterproof feature.
• Analog & Conversion — On-chip 12-bit A/D converter (1 channel) for analog sensor interfacing or calibration routines.
• Interfaces & I/O — I2C connectivity and 10 general-purpose I/O pins for host communication and peripheral control.
• Timers — 16-bit timer for timing and control tasks.
• Package & Temperature — Supplied in a 12-DFN package (1.4×2.1 mm) and specified for -40–85 °C operation.

Typical Applications

• TWS (True Wireless Stereo) — Compact touch and proximity controls in earbud or charging-case designs where small package size and low power are critical.
• Smartphones — Touch and proximity sensing for user interfaces and accessory interactions in space-constrained phone designs.
• Compact touch-control designs — Small-form-factor consumer devices that require multiple touch keys, slide detection and waterproof robustness.

Unique Advantages

• Space-efficient package: 12-DFN (1.4×2.1 mm) minimizes board area for compact device designs.
• Integrated touch and proximity: On-chip single touch, slide touch, proximity and 7 touch-key channels reduce external component count and simplify the user-interface design.
• Enhanced waterproof capability: Built-in waterproof feature supports reliable touch operation in moisture-prone environments.
• Low-voltage operation: 1.7–3.6 V supply range enables flexible battery-powered designs.
• Firmware flexibility: FLASH program memory (20 Kbytes) allows field updates and feature customization.
• Automated sensing support: 12-bit A/D and a 16-bit timer provide measurement and timing resources for calibration and control tasks.

Why Choose A96T3A6EFN?

The A96T3A6EFN positions itself as an integrated, low-power touch and proximity MCU for designers targeting compact consumer devices such as TWS products and smartphones. Its combination of an 8051 core, FLASH programmability, I2C connectivity and dedicated touch features allows engineers to implement responsive touch interfaces while minimizing external components and PCB area.

With a wide supply range (1.7–3.6 V), a small 12-DFN footprint and an operating temperature range of -40–85 °C, the device supports robust operation across varied portable-device environments and firmware-driven feature updates.

Request a quote or submit an inquiry to receive pricing and lead-time information for the A96T3A6EFN Smart Capacitive Touch and Proximity Sensor.