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MAX1233 - ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller

General Description

The MAX1233/MAX1234 are complete PDA controllers in 5mm × 5mm, 28-pin QFN and TQFN packages.

Key Features

  • ESD-Protected Analog Inputs ±15kV IEC 1000-4-2 Air-Gap Discharge ±8kV IEC 1000-4-2 Contact Discharge.
  • Single-Supply Operation +2.7V to +3.6V (MAX1233) +4.75V to +5.25V (MAX1234).
  • 4-Wire Touch-Screen Interface.
  • Internal +1.0V/+2.5V Reference or External Reference (+1.0V to AVDD).
  • SPI™/QSPI™/.

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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.

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19-2512; Rev 4; 3/08 EVAALVUAAILTAIOBNLEKIT ±15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller MAX1233/MAX1234 General Description The MAX1233/MAX1234 are complete PDA controllers in 5mm × 5mm, 28-pin QFN and TQFN packages. They feature a 12-bit analog-to-digital converter (ADC), low onresistance switches for driving resistive touch screens, an internal +1.0V/+2.5V or external reference, ±2°C accurate, on-chip temperature sensor, direct +6V battery monitor, keypad controller, 8-bit digital-to-analog converter (DAC), and a synchronous serial interface. Each of the keypad controllers’ eight row and column inputs can be reconfigured as general-purpose parallel I/O pins (GPIO).