CYAT81688-128AA88 - CYPRESS SEMICONDUCTOR

SUMMARY

CYAT81X

(61, 71, 77, 88 I/Os)

Automotive TrueTouch®

Multi-Touch All-Points

Touchscreen Controller Datasheet

Cypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600

Document Number: 002-04310 Rev. *A Revised April 21, 2017

Features

■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

❐I2C 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 VCCTX supply.

SUMMARY

CYAT81X

(61, 71, 77, 88 I/Os)

Document Number: 002-04310 Rev. *A Page 2 of 5

Ordering Information

Table 1 lists the CYAT81X TrueTouch touchscreen controllers.

Table 1. Ordering Information[2]

Notes

2. All devices have the following base features: Water Rejection, DisplayArmor™, AutoArmor™, DualSense™, CapSense buttons, Large Object Detection and Rejection,

and Grip Suppression.

Family MPN

Number of Sense

Pins

Number of Fingers

CapSense Buttons

Water Rejection

Thin Glove Support

Display Armor

Gestures

Thick Overlay/Thick

Glove Support

5-V TX

Package

Low Cost

CYAT81682-100AA61 61 10  – – – 100 TQFP

CYAT81682-100AS61 61 10  – – – 100 TQFP

CYAT81682-100AA71 71 10  – – – 100 TQFP

CYAT81682-100AS71 71 10  – – – 100 TQFP

CYAT81682-100AA77 77 10  – – – 100 TQFP

CYAT81682-100AS77 77 10  – – – 100 TQFP

CYAT81682-128AA88 88 10  – – – 128 TQFP

CYAT81682-128AS88 88 10  – – – 128 TQFP

Gestures

CYAT81685-100AA61 61 10  – – 100 TQFP

CYAT81685-100AS61 61 10  – – 100 TQFP

CYAT81685-100AA71 71 10  – – 100 TQFP

CYAT81685-100AS71 71 10  – – 100 TQFP

CYAT81685-100AA77 77 10  – – 100 TQFP

CYAT81685-100AS77 77 10  – – 100 TQFP

CYAT81685-128AA88 88 10  – – 128 TQFP

CYAT81685-128AS88 88 10  – – 128 TQFP

Base

CYAT81688-100AA61 61 10  100 TQFP

CYAT81688-100AS61 61 10  100 TQFP

CYAT81688-100AA71 71 10  100 TQFP

CYAT81688-100AS71 71 10  100 TQFP

CYAT81688-100AA77 77 10  100 TQFP

CYAT81688-100AS77 77 10  100 TQFP

CYAT81688-128AA88 88 10  128 TQFP

CYAT81688-128AS88 88 10  128 TQFP

SUMMARY

CYAT81X

(61, 71, 77, 88 I/Os)

Document Number: 002-04310 Rev. *A Page 3 of 5

Ordering Code Definitions

Product Feature Set (see Ordering Information table)

Sensor Configuration:

1 = Discrete Sensors

2 = In-cell Hybrid

CY AT XXX

Package Type: A = TQFP

XXX

Number of Pins: 100 or 128

Temperature Range:

Number of Sense I/Os: 61, 71, 77, or 88

Market Segment :

8 = Automotive Touchscreen

Business Unit :

AT = Automotive

Marketing Code: CY = Cypress

A = –40 °C to 85 °C

S = –40 °C to 105 °C

SUMMARY

CYAT81X

(61, 71, 77, 88 I/Os)

Document Number: 002-04310 Rev. *A Page 4 of 5

Document History Page

Document Title: CYAT81X (61, 71, 77, 88 I/Os) Automotive TrueTouch® Multi-Touch All-Points Touchscreen Controller

Datasheet

Document Number: 002-04310

Revision ECN Orig. of

Change

Submission

Date Description of Change

** 4988927 MANU 10/28/2015 New summary datasheet

Document Number: 002-04310 Rev. *A Revised April 21, 2017 Page 5 of 5

SUMMARY

CYAT81X

(61, 71, 77, 88 I/Os)

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