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LM8400 - Four Wire Resistive Touchscreen Controller

Download the LM8400 datasheet PDF. This datasheet also covers the LM8 variant, as both devices belong to the same four wire resistive touchscreen controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The LM8300/8400/8500 is a 4-wire resistive touch screen controller.

The controller samples and drives the touch screen without the need of any external hardware.

The built in 10-bit A/D provides a maximum of 500 coordinate pairs per second (cpps).

Key Features

  • KEY.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM8-400.pdf) that lists specifications for multiple related part numbers.

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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
LM8300/LM8400/LM8500 Four Wire Resistive Touchscreen Controller with Brownout PRELIMINARY October 2002 LM8300/LM8400/LM8500 Four Wire Resistive Touchscreen Controller with Brownout General Description The LM8300/8400/8500 is a 4-wire resistive touch screen controller. The controller samples and drives the touch screen without the need of any external hardware. The built in 10-bit A/D provides a maximum of 500 coordinate pairs per second (cpps). The data sampled from the touch screen is sent out on the UART at a speed of 38400 bps. The controller has a power-saving mode which causes the controller to self-power down when no touch is detected on the touch screen for a specified amount of time.