CYTT21XXX
(28, 33, 35, 36 I/Os)
SUMMARY
TrueTouch® Multi-Touch All-Points
Touchscreen Controller Datasheet
Features
■ Multi-touch capacitive touchscreen controller
®
❐ 32-bit ARM Cortex™ CPU
❐ Register-configurable
❐ Noise-suppression technologies for battery charger and
display
• Effective 24-V drive for higher signal-to-noise ratio (SNR)
• ChargerArmor™ for charger noise 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)
❐ Fingernail tracking
❐ Grip suppression
❐ Large object rejection
❐ Automatic baseline tracking to environmental changes
❐ Low-power look-for-touch mode
❐ Field upgrades via bootloader
❐ Android™ driver support
❐ Cypress Manufacturing Test Kit (MTK)
❐ Touchscreen sensor self-test and Panel ID reporting
■ System performance (configuration dependent)
❐ Screen sizes up to 5.0-inch diagonal
• 4.8-mm sensor pitch; 16:9 aspect ratio
❐ Up to 36 sense pins
• 308 intersections (22 × 14)
❐ Reports up to ten fingers
❐ Small finger support down to 4 mm
❐ Large finger support up to 30 mm
❐ Refresh rate up to 300 Hz; other rates configurable
❐ TX frequency up to 500 kHz
❐ Best-in-class charger noise immunity
• Immunity up to 35-V peak-to-peak (VPP)
• Immunity to AT&T® Zero charger
■ Power (configuration-dependent)
❐ 1.71- to 1.95-V or 2.0- to 5.5-V digital and I/O supply
❐ 2.65- to 4.7-V analog supply
❐ 4-mW average power
❐ 5.7-μW typical deep-sleep power
■ Sensor and system design (configuration-dependent)
❐ Supports a variety of touchscreen sensors and stackups
• Manhattan, diamond, Single-Layer Independent
Multi-touch (SLIM®), and Totem-pole patterns
• Sensor-on-Lens (SOL)
• Plastic (PET) and glass-sensor substrates
• LCD, AMOLED, and IPS displays
• Metal mesh
❐ Single-layer flexible printed circuit (FPC) routing enabled by
flexible TX/RX configurations
■ Communication interface
2
❐ I C slave at 100 and 400 kbps
[1]
❐ SPI slave bit rates up to 8 Mbps
■ Package options
❐ 44-pin 5 × 5 × 0.6-mm QFN (0.35-mm lead pitch)
❐ 48-pin 6 × 6 × 0.6-mm QFN (0.4-mm lead pitch)
Note
1. SPI support is only available in 48-pin QFN package.
Cypress Semiconductor Corporation
Document Number: 001-96564 Rev. *A
•
198 Champion Court
•
San Jose, CA 95134-1709 • 408-943-2600
Revised February 17, 2016
SUMMARY
CYTT21XXX
(28, 33, 35, 36 I/Os)
Ordering Information
Table 1 lists the CYTT21XXX TrueTouch touchscreen controllers. For information on other TrueTouch families, visit
http://www.cypress.com/truetouch.
Table 1. Device Ordering Information
TrueTouch
Part Number
Top
Marking
Sense
I/O
Base
Features[2]
Advanced
Wet-finger
Tracking
Package
Glove
Easy
Wake
Type
CYTT21100-44LQI28(T)
CYTT21000-44LQI
28
✔
–
–
–
44-Pin QFN
CYTT21401-44LQI28(T)
CYTT21000-44LQI
28
✔
✔
✔
–
44-Pin QFN
CYTT21402-44LQI28(T)
CYTT21000-44LQI
28
✔
✔
✔
✔
44-Pin QFN
CYTT21100-44LQI33(T)
CYTT21000-44LQI
33
✔
–
–
–
44-Pin QFN
CYTT21401-44LQI33(T)
CYTT21000-44LQI
33
✔
✔
✔
–
44-Pin QFN
CYTT21402-44LQI33(T)
CYTT21000-44LQI
33
✔
✔
✔
✔
44-Pin QFN
CYTT21100-44LQI35(T)
CYTT21000-44LQI
35
✔
–
–
–
44-Pin QFN
CYTT21401-44LQI35(T)
CYTT21000-44LQI
35
✔
✔
✔
–
44-Pin QFN
CYTT21403-44LQI35(T)
CYTT21000-44LQI
35
✔
✔
✔
✔
44-Pin QFN
CYTT21100-48LQI36(T)
CYTT21000-48LQI
36
✔
–
–
–
48-Pin QFN
CYTT21401-48LQI36(T)
CYTT21000-48LQI
36
✔
✔
✔
–
48-Pin QFN
CYTT21403-48LQI36(T)
CYTT21000-48LQI
36
✔
✔
✔
✔
48-Pin QFN
Ordering Code Definitions
CY TT Y Y XXX
## LQI ZZ (T)
T: Tape and Reel
Number of Sense I/O
Package Type: LQI = QFN
Number of Pins
Product Feature Set (see Ordering Information table)
Sensor Configuration:
1 = Discrete Sensors, SLIM, On-cell/AMOLED, On-cell
Market Segment:
2 = Low-end to mid-range white goods, home appliances, remote controls,
industrial controls, navigation, and medical applications
TT: TrueTouch
CY = Cypress
Note
2. All devices have the following base features: Water Rejection, ChargerArmor, CapSense buttons, Large Object Detection and Rejection, and Grip Suppression.
Document Number: 001-96564 Rev. *A
Page 2 of 3
SUMMARY
CYTT21XXX
(28, 33, 35, 36 I/Os)
Document History Page
Document Title: CYTT21XXX (28, 33, 35, 36 I/Os) TrueTouch® Multi-Touch All-Points Touchscreen Controller Datasheet
Document Number: 001-96564
Orig. of Submission
Change
Date
Revision
ECN
Description of Change
**
4670224
SWU
02/25/2015
New datasheet.
*A
5141053
ELG
02/17/2016
Updated Ordering Information and Ordering Code Definitions.
Sales, Solutions, and Legal Information
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USB Controllers .................................. cypress.com/go/USB
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Document Number: 001-96564 Rev. *A
Revised February 17, 2016
ChargerArmor™ is a trademark and TrueTouch® is a registered trademark of Cypress Semiconductor Corporation.
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