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MK715 Datasheet Touch Screen Controller

Manufacturer: Integrated Circuit Systems

Overview: MK715 Touch Screen Controller General.

General Description

The MK715 Touch Screen Controller IC provides all the screen drive, Analog to Digital converter (ADC) and control circuits to easily interface to 4-wire analog resistive touch screens.

It also includes a general purpose A to D converter and a clock synthesizer.

The IC continually monitors the screen waiting for a touch.

Key Features

  • • • • • • • • • • • • • • • • • • • Tiny 20 pin SSOP (150 mil body) 4 microamp standby current Less than 3mA active current at 3.3V, including screen drive Touch pressure can be measured One or two general purpose A to D inputs On-chip voltage reference 32.768kHz crystal/clock input MHz clock outputs available Operates with four wire touch screens Ratiometric conversion eliminates screen calibration Automatic wake up upon screen touch Programmable conversion rate to a maximum of 303 points per s.

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MK715 Distributor