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The mXT641T-A uses the latest capacitive touch technologies that Atmel has designed for the highest-performance automotive touchscreens in the centerstack or entertainment systems. With a revolutionary adaptive-sensing architecture featuring both mutual- and self-capacitance, it enables the highest performance supporting hover, gloved touch and thick lens support. Hover operation will track the position of the finger when it floats within 20mm of the touchscreen. Hover allows user interaction without making a physical contact, and brings a more dynamic interface to user applications.

In addition it provides best in class water and moisture immunity guaranteeing that no false touch will be detected under this harsh conditions.

With 640 nodes, the mXT641T-A touchscreen controller supports touchscreens up to 10”.

Key Features

  • Fully automotive-qualified (Grade 2), operating within the temperature range of -40°C up to +105°C
  • Adaptive Sensing (Self and Mutual cap)
  • Support 20mm hover
  • Supports thick glove (5mm) touch
  • Support thick lenses (up to 3mm plastic)
  • Superior moisture performance

Key Parameters

Parameter
Value

Nodes:

640

Max. Screen:

10 in

Interface Type:

I2C/SPI

Touch Response:

>250 Hz

Operating Voltage (Vcc):

3.3

 

Ordering Code Package Operational Range Carrier Type Samples Atmel Store Availability1 Unit Price2 Buy Online
MXT641T-AB TQFP 100A 100 Automotive(Grade 2) (-40°C to 105°C) Tray 0 Varies
MXT641T-ABR TQFP 100A 100 Automotive(Grade 2) (-40°C to 105°C) Tape&Reel 0 Varies
MXT641T-AT TQFP 100A 100 Automotive(Grade 3) (-40°C to 85°C) Tray 0 Varies
MXT641T-ATR TQFP 100A 100 Automotive(Grade 3) (-40°C to 85°C) Tape&Reel 0 Varies



1Backlog orders can be placed for items currently not available.
2Suggested retail price per unit for budgetary use only.