SUMMARY
Automotive TrueTouch
Multi-Touch All-Points
Touchscreen Controller Datasheet
Features
■
CYAT81X
(61, 71, 77, 88 I/Os)
®
Multi-touch capacitive touchscreen controller
®
❐
32-bit ARM Cortex™ CPU
❐
Register-configurable
❐
Noise-suppression technologies for display and EMI
• Effective 20-V drive for higher signal-to-noise ratio (SNR)
[1]
• AutoArmor™ improves both electromagnetic emissions
and immunity
• External display synchronization
❐
Water rejection and wet-finger tracking using DualSense™
❐
Multi-touch glove with automatic mode switching
• Ten fingers with thin glove (≤1-mm thick)
• Two fingers with thick glove (≤5-mm thick)
❐
Large object rejection
❐
Automatic baseline tracking to environmental changes
❐
Low-power look-for-touch mode
❐
Field upgrades via bootloader
❐
Cypress Manufacturing Test Kit (MTK)
❐
Touchscreen sensor self-test
System performance (configuration dependent)
❐
Screen sizes up to 15-inch diagonal
• 6.0-mm electrode pitch; 16:10 aspect ratio
❐
Up to 88 sense pins, 1836 intersections; 16:10 aspect ratio
(34 TX × 54 RX)
❐
Reports up to ten fingers
❐
Small finger support down to 4 mm
■
Power (configuration-dependent)
❐
1.71- to 1.95-V and 3.0- to 5.5-V logic and digital I/Os supply
❐
3.0- to 5.5-V analog supply
❐
30-mW average power
❐
30-μW typical deep-sleep power
Sensor and system design (configuration-dependent)
❐
Supports a variety of touchscreen sensors and stackups
• Manhattan, diamond
• Sensor-on-Lens (SOL)
• Plastic (PET) and glass-sensor substrates
• LCD, AMOLED, and IPS displays
• Metal mesh
Communication interface
2
❐
I C slave at 100 and 400 kbps
❐
SPI slave bit rates up to 8 Mbps
Package
❐
100-pin TQFP 14 × 14 × 1.4 mm (0.5-mm pitch)
❐
128-pin TQFP 14 × 20 × 1.4 mm (0.5-mm pitch)
Ambient temperature range
❐
Automotive-A: –40 °C to 85 °C
❐
Automotive-S: –40 °C to 105 °C
■
■
■
■
■
Note
1. Effective voltage when using 17 multi-phase TX and 5-V V
CCTX
supply.
Cypress Semiconductor Corporation
Document Number: 002-04310 Rev. *B
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Revised November 13, 2017
SUMMARY
Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
CYAT81X
(61, 71, 77, 88 I/Os)
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Document Number: 002-04310 Rev. *B
Revised November 13, 2017
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