Description

The EKT4701QN32JU is a low-cost single chip solution for capacitive touchpad. It is an 8-bit RISC architecture microcontroller device with Serial Peripheral Interface (SPI-Slave) and I2C-slave (Normal Mode). The EKT4701QN32JU supports button information for customers and can operate in different modes such as protocol and I/O mode for easy system development. With adjustable sensitivity, it can be used with different thicknesses of plastic or glass covers. The EKT4701QN32JU is available in various package types.

Specifications and features

- Operating voltage: 3V~5.5V, Ripple < 300mVpp

- Power-on reset time: Stable time for operating < 350ms, the touchpad will send "Packet Hello" after initialization

- Interface features: Serial Peripheral Interface (SPI-Slave) and I2C-slave (Normal Mode)

- Operating mode: (@ 5V)

- Useful information: Key buttons information can be acquired through I/O transition or protocol decode.

- Sensitivity: sensitivity can be adjusted from 00H to 0FH for different thickness of the plastic or glass cover. The default label is "07H".

- Package types:

- 32-pin QFN 5x5: eKT2101QN32J

- 28-pin SOP 300mil: eKT2101SO28J

- 24-pin SOP 300mil: eKT2101SO24J

- 16-pin SOP 150mil: eKT2101SO16AJ

Application Scenarios

The EKT4701QN32JU can be used in various applications such as consumer electronics, industrial control systems, and automotive touchpad panels.

Comparison

- Low-cost solution

- Adjustable sensitivity

- Supports button information

- Easy system development

- Limited package options