Heilbronn, Germany--Atmel Corp., pushing its consumer technology
into the automobile, announced version of its maXTouch
microcontrollers for in-car control systems. The mXT143E and mXT224E
touch controllers are designed for small automotive touchscreens and
touchpads up to 7 inches in diameter such as center stack displays,
navigation systems, radio human-machine interfaces (HMIs) and
rear-seat entertainment systems.
The high signal-to-noise ratio of 80:1 makes these devices ideal for
very noisy environments. The devices provide full support for gloved
hand operation on automotive touchscreens and pads.
The mXT143E and mXT224E embed X/Y position calculation as well as
post-processing algorithms such as eliminating unintended touches.
With touchscreens and pads based on these new maXTouch controllers,
users can perform multi-touch gestures (pinch, stretch, etc.), while
unintended touches, such as a resting hand on the screen, are
The devices feature true 12-bit touch functionality with independent
X/Y tracking for up to 10 concurrent touches in real–time, allowing
for the highest linearity and accuracy. Adaptation to
high-resolution displays is easy and quick. The user-configurable
ratio of X and Y lines supports a variety of aspect ratios from 4:3
Samples of automotive-qualified mXT143E and mXT224E touch
controllers are available now in TQFP48 packages. Mass production
will start the end of October 2012. Demo kits for both devices are
For more information, visit Atmel's MaXTouch