Description

The EKT0101-EF224KBWJK 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) interface features. The EKT0101 supports button information for customers and can operate in Protocol mode or I/O mode. Developers can easily obtain valid button messages and decode communication packages without any hassle.

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 EKT0101-EF224KBWJK can be used in various applications such as capacitive touchpad systems, electronic appliances, and consumer electronics. It is suitable for projects that require a low-cost and efficient single chip solution for touch-sensitive interfaces.

Comparison

• Low-cost solution for capacitive touchpad
• Supports button information for customers
• Easy to develop system with I/O mode
• Adjustable sensitivity for different cover thickness

• Limited operating voltage range
• May require additional components for certain applications