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MK712 - Touch Screen Controller

General Description

The MK712 Touch Screen Controller IC provides all the screen drive, A to D converter and control circuits to easily interface to 4-wire analog resistive touch screens.

The IC continually monitors the screen waiting for a touch.

In this mode, the supply current is typically 0.5µA.

Key Features

  • Fully integrated, lowest power solution.
  • Low standby current of 0.5µA (typical) at 5.0V.
  • Active current while converting less than 10 mA.
  • Resolves 350 dots/inch on 10.5” display.
  • Maximum speed of 197 points/second.
  • Ratiometric conversion may eliminate screen calibration.
  • Automatically wakes up and goes back to standby.
  • 3.3V or 5V supply.
  • 12 bit A/D converter.
  • Simplifies the writing of software for touch sc.

📥 Download Datasheet

Datasheet Details

Part number MK712
Manufacturer Integrated Circuit Systems
File Size 204.43 KB
Description Touch Screen Controller
Datasheet download datasheet MK712 Datasheet

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.

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I C R O C LOC K Description The MK712 Touch Screen Controller IC provides all the screen drive, A to D converter and control circuits to easily interface to 4-wire analog resistive touch screens. The IC continually monitors the screen waiting for a touch. In this mode, the supply current is typically 0.5µA. When the screen is touched, the IC performs analog to digital conversions to determine the location of the touch, stores the X and Y locations in the registers, and issues an interrupt. This process is repeated up to 197 times per second until no further screen touches are detected, at which time the low current mode is resumed. MK712 Touch Screen Controller Features • Fully integrated, lowest power solution • Low standby current of 0.5µA (typical) at 5.