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TCA8424 - Low-Voltage 8x16 Keyboard Scanner

General Description

This 128 key scan device is specifically targeted towards end equipment that runs on Windows 8 operating system.

The device is fully compliant with the HID over I2C specification defined (ver 1.0) defined by Microsoft.

Key Features

  • 1.
  • Operating Power-Supply Voltage Range of 1.65V to 3.6V.
  • Supports FM+ I2C Operation up to 1MHz.
  • Can Support up to 128 (8x16) Key Scan.
  • Internal Power-On-Reset.
  • Open Drain Open Drain Active Low INT Output.
  • Noise Filter on SCL/SDA and Inputs.
  • Open Drain Outputs Can Sink up to 12mA Current for LED.
  • Hardware Coded HID and REPORT Descriptors.
  • Available With Preprogrammed Keyboard Map.
  • Software Reset per HID Ove.

📥 Download Datasheet

Other Datasheets by Texas Instruments

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
TCA8424 www.ti.com SCDS341 – MARCH 2013 Low-Voltage 8x16 Keyboard Scanner with HID over I2C Compliant Interface Check for Samples: TCA8424 FEATURES 1 • Operating Power-Supply Voltage Range of 1.65V to 3.