Capsense Capacitive sensing Solution , increasing flexibility, reducing board space, and lowering cost.

1. CyPRESS
C ap S ense C apacitive ™
Touch -S ensing Controller
p R O d UC t O ve Rv i e W
CapaCitive sensing made easy — pOWeRed By ps o C ® miXed-signaL A D VA N TA G E S
aRRay teCHnOLOgy Up to 46 CapaCitive/General-pUrpose
i/o
Capacitive sensing is fast becoming the solution of choice for front-panel display and
• LED Driver/Backlight Control
media control applications. Best-in-class durability, decreased bill of materials (BOM),
• Motor Control
and a clean appearance make this elegant interface attractive to a wide range of
•Power Management
designs. Cypress’s CapSense solution offers system designers numerous advantages
over traditional capacitive sensing products by being a self-contained system— • I/O Expansion
increasing flexibility, reducing board space, and lowering cost. • Gyro
• Accelerometer
• Ambient Light-sensing
2.4v–5.25v sUpply voltaGe
Capsense
+ 512B–1KB RAM
mCU
CiRCUit
8KB–16KB FLAsh
Capsense inpUts
additiOnaL anaLOg/digitaL In-systEM sERIAL PROGRAMMInG (IssP)
FUnCtiOns gpiO
FREE DEvELOPMEnt sOFtwARE
(PsOC DEsIGnER™)
HOst COmmUniCatiOn FuLL-FEAtuRED In-CIRCuIt EMuLAtOR
–
AnD PROGRAMMER
i2C, sPI, uARt AnD usB COMMunICAtIOn
IntERFACEs
PsoC ® Mixed-sigal Ar r a y
InDustRy’s sMALLEst PACKAGEs
Because of the unique PSoC architecture, designers can easily integrate multiple functions
® (E.G. 16-PIn 3x3x0.6MM QFn)
(e.g. LED drivers and backlighting), in addition to capacitive sensing. The PSoC CapSense
solution also delivers benefits such as easy communications using either I2C, SPI, UART,
or USB interfaces, the ability to implement buttons, sliders, touchpads, touchscreens, and
proximity sensors with the same device, and the ability to make quick design changes
using the flash-based PSoC architecture.
APPLICATIONS
• Wireless Handsets • Digital Still & Video Cameras • Appliances • Handheld Devices (PDAs)
• Notebook Computers • LCD Monitors • PC Keyboards & Mice • Automotive
• Industrial Interfaces • Toys
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2. p R O d UC t O ve Rv ieW
IntERFACE tyPE OvERvIEw appliCations
ButtOns
• Low-cost, simple solution for integrating up to 46 buttons Wireless Handsets,
PC Peripherals, Appliances,
• Flexible technology enables sensing through a wide range of protective
LCD Monitors, TVs, PC Mice,
overlay materials
Notebook Computers,
• Calibrate buttons individually with firmware parameters Automotive, and Toys
sLIDERs
• PSoC CapSense implements sliders in applications requiring precise multi-level sensing Wireless Handsets,
Volume control PC Peripherals, Appliances,
LCD Monitors, TVs, Notebook
Brightness control
Computers, Digital Still
Temperature control Cameras, Automotive, and
Exercise Equipment
• Achieve greater resolution than is native to IC pin count
tOuChPADs
• PSoC’s unique architecture allows the integration of a touchpad into Wireless Handsets, Notebook
non-traditional touchpad applications Computers, and Keyboards
• Capacitive sensing offers a cost-reduction to expensive modules and resistive-
overlay technologies
• Cypress’s automated design methodology makes touchpad implementation easy,
even for the most novice designer
tOuChsCREEns
• PSoC’s unique architecture allows the integration of a touchscreen into Wireless Handsets, Appliances,
non-traditional touchscreen applications Handheld Devices (PDAs), Kiosks,
and PQS Terminals
• Configurable I/O allows for the support of a wide range of panel sizes
• Multi-touch capable
PROxIMIty sEnsInG
• Wake your system before the user’s hand reaches the touch surface Appliances, Keyboards, PC Mice,
• Proximity sensing can be applied to any application that senses a conductive object, Touchpads, Notebook Computers,
such as fluid-level sensors and pulse-rate monitors Automotive, Lighting Sensors,
Industrial Sensors, and Controls
• PSoC CapSense implements proximity sensing simply by adjusting the sensor design
and sensitivity of the capacitance measurement
C ap s ense deviCe seLeCtOR gUide
part Gpio CapaCitive analoG DIGItAL FLAsh RAM tEMPERAtuRE h/w COMM DEvELOPMEnt KIts
nuMBER i/o BLOCKs BLOCKs GRADE IntERFACE
Cy8C24x94 Up to 56 Up to 46 6 4 16K 1K Industrial i2C UsB, spi, UaRt CY3214-PSoCEvalUSB
Automotive
Cy8C21x34 Up to 28 Up to 24 4 type “e” 4 8K 512 i2C spi, UaRt CY3280-BK1
Industrial, Extended
Cy8C20x34 Up to 28 Up to 25 CapSense 0 8K 512 Industrial i2C, spi CY3280-BK1
GET STARTED nOw.
Go to cypress.com/go/CapSense to get more information on CapSense, download software and order kits.
Cypress Semiconductor Corporation
198 Champion Court, San Jose CA 95134
phone +1 408.943.2600 fax +1 408.943.6848
toll free +1 800.858.1810 (U.S. only) Press “1” to reach your local sales representative
Cypress, the Cypress logo and PSoC are registered trademarks and CapSense Express, Programmable System-on-Chip and PSoC Designer are trademarks
of Cypress Semiconductor Corporation. The names for any other companies, products, or services mentioned herein are for identification only and may be
trademarks, registered trademarks, or service marks of or may be copyrighted by their respective holders. Cypress Semiconductor Corporation assumes no
responsibility for customer product design and assumes no responsibility for infringement of patents or rights of others that may result from Cypress assistance,
and no product licenses are implied. 2-0408CapSensePO 042008/SXF/VyM/VyM/GDA/JP/5k. © 2008 Cypress Semiconductor Corporation
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