ATmega48P datasheet(5/20 Pages) ATMEL

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Atmel Automotive Solutions

Meeting Customer Expectations

Part Number

Description

Package

QT1110

11-channel Touch Controller for Touch Buttons

TQFP32 (7 x 7mm)

mXT143E-A

143-channel Touchscreen Controller, Automotive Grade 3, I2C Interface

TQFP48 (7 x 7mm)

mXT224E-A

224-channel Touchscreen Controller, Automotive Grade 3, I2C Interface

TQFP48 (7 x 7mm)

mXT224S-A

224-channel Touch Controller, High Voltage, Automotive Grade 3, I2C Interface

TQFP64 (10 x 10mm)

mXT336S-A

336-channel Touch Controller, High Voltage, Automotive Grade 3, I2C Interface

TQFP64 (10 x 10mm)

mXT540E-A

540-channel Touchscreen Controller, Automotive Grade 2, I2C Interface

TQFP48 (7 x 7mm)

mXT768E-A

768-channel Touchscreen Controller, Automotive Grade 2, I2C Interface

TQFP48 (7 x 7mm)

mXT143E/ mXT224E Key Features

• Automotive grade 3: -40 to +85°C

• 143 and 224 channels

• Support up to 8” screens

• Additional up to 32 channels touch keys

• High SNR enabling gloved-hand operation

• Support for 10 simultaneous touches

• Detect and eliminate unintended touches

• Response time <10ms from idle

• I2C interface

• TQFP48 package

mXT224S/ mXT336S Key Features

• Automotive grade 3: -40 to +85°C

• 224 and 336 channels

• Support up to 8” screens

• Enable single layer, shieldless sensors

• High-voltage option to double the SNR ratio

• Support gloved-hand operation

• Rejection of unintended touches

• TQFP64 package

mXT540E/ mXT768E Key Features

• Automotive grade 2: -40 to +105°C

• 540 and 768 channels

• Support up to 12” screens

• Enable single layer, shieldless sensors

• Additional up to 64 channels touch keys

• High SNR enabling gloved-hand operation

• Support for 16 simultaneous touches

• Detects and eliminates unintended touches

• Response time <10ms from idle

• I2C interface

• TQFP48 package

Features

Meeting Expectations

Capacitive touch technology supports proximity detection,

touch buttons, slider, wheels and touchscreens

• On-stop shop

• Totally integrated HMI

Unlimited, unambiguous touch identification, tracking and reporting

• Multi-touch support

Smart processing with integrated 32-bit MCU and DSP engine

• Integrated gesture calculation

• Suppressing unintended touches

Embedded post-processing algorithms

• Adjacent key suppression

• Noise filtering

• Improved EMI/ESD behavior

Very fast response time <10ms

• Supports character recognition

High SNR (signal-to-noise ratio): 80:1

• Fingertip, back of finger touches supported

• Gloved finger operation

Advanced noise handling and filtering in hard- and firmware

• Single layer shieldless sensor support

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