New Cypress CapSense® Express™ Solution Provides a Complete 4 x 4 Matrix System for Keypad Applications
October 06 2011 - 9:00AM
Business Wire
Cypress Semiconductor Corp. (Nasdaq:CY), the market leader in
touch-sensing, today announced the new CY8CMBR2016 device that
enables designers to implement capacitive matrix button systems of
up to 4 x 4 buttons without having to write firmware or learn new
software tools. A matrix system is a row and column array of
buttons typically found in keypad applications in a variety of
industrial applications. This is the latest addition to the popular
CapSense® Express™ capacitive touch-sensing controller line from
Cypress that leverages Cypress’s revolutionary SmartSense™
Auto-tuning algorithm, which completely eliminates the requirement
for system tuning and is the only solution that offers run-time
environmental compensation.
The CY8CMBR2016 supports industry standard “keypad scan” and
“truth table” host interface protocols, enabling customers to
leverage their existing host processor firmware. The device also
features multi-touch, perfect for matrix applications that require
simultaneous button presses to enter various user interface modes.
The CY8CMBR2016 operates over a 1.71 V to 5.5 V range making it
ideal for a wide range of regulated and unregulated battery
applications, and a supply current in run mode as low as 15
uA/button. It is targeted for applications such as security panels,
card reader keypads, biometric scanner keypads, fire alarm control
panels, thermostats, home appliances as well as any system
requiring up to 16 individual CapSense buttons. More information is
available at www.cypress.com/go/capsense.
SmartSense Auto-tuning dynamically optimizes the capacitive
baseline and detection threshold for each button. It adjusts for
the optimal capacitance sensing range at power-up and during
runtime as environmental conditions change, including temperature,
humidity, and noise. Eliminating the need to tune is a significant
advantage for large and small manufacturers alike, as it saves
engineering time and yield loss that can occur with even slight
variations in manufacturing tolerances. This savings is greatly
multiplied for customers with a global factory footprint and supply
chain. SmartSense Auto-tuning can eliminate the need for additional
test steps required by competing solutions to address variations in
PCBs and overlays.
“This new CapSense Express controller with SmartSense
Auto-tuning technology extends the world’s easiest mechanical
button replacement portfolio to matrix keypad applications,” said
Dirk Franklin, business unit director for Cypress’s CapSense
solutions. “The CY8CMBR2016 Matrix Keypad solution enables
firmware, hardware, and mechanical engineers to implement
capacitive sensing quickly and easily in their application.”
The device offers reliable operation in the harshest sensing
conditions and ensures superior immunity to conducted and radiated
noise. It also integrates a voltage regulator to address power
supply noise as well as filters for any spurious noise.
Cypress’s accompanying design toolbox provides detailed
resources to ensure optimal CapSense performance, and advanced
system debug features allow customers to take designs directly to
production for significantly shorter time-to-market.
Availability and Photo
The CY8CMBR2016 CapSense Express controller is currently in
production in a 48-pad QFN package. For a high-resolution photo of
a CY8CMBR2016 device, visit
www.cypress.com/go/PR/photos/CY8CMBR2016.
About CapSense
Cypress's CapSense touch-sensing solutions have replaced 3.5
billion mechanical buttons in mobile handsets, laptops, consumer
electronics, white goods, automotive applications, and virtually
any system that has a mechanical button or switch, making Cypress
the industry touch-sensing leader. The CapSense portfolio, the
industry's broadest and most integrated, enhances industrial design
and reliability with the most noise-immune and water tolerant
capacitive touch-sensing interfaces, including proximity sensing
where direct touch is not required. CapSense proximity sensing
provides power savings by activating an interface only when needed
while further enhancing industrial designs by only exposing
interfaces when necessary. The portfolio ranges from the
fixed-function CapSense Express controllers that streamline the
transition to a robust touch-sensing interface, to the
sophisticated CapSense Plus™ controllers based on the PSoC
programmable system-on-chip architecture that can integrate a wide
variety of Analog and Digital system blocks to reduce total chip
count and system BOM cost. Learn more about CapSense online at
www.cypress.com/go/capsense.
About Cypress
Cypress delivers high-performance, mixed-signal, programmable
solutions that provide customers with rapid time-to-market and
exceptional system value. Cypress offerings include the flagship
PSoC® programmable system-on-chip families and derivatives such as
PowerPSoC® solutions for high-voltage and LED lighting
applications, CapSense® touch sensing and TrueTouch™ solutions for
touchscreens. Cypress is the world leader in USB controllers,
including the high-performance West Bridge® solution that enhances
connectivity and performance in multimedia handsets. Cypress is
also a leader in high-performance memories and programmable timing
devices. Cypress serves numerous markets including consumer, mobile
handsets, computation, data communications, automotive, industrial
and military. Cypress trades on the Nasdaq Global Select Market
under the ticker symbol CY. Visit Cypress online at
www.cypress.com.
Cypress, the Cypress logo, PSoC, PowerPSoC, CapSense and West
Bridge are registered trademarks and CapSense Express, SmartSense,
CapSense Plus and TrueTouch are trademarks of Cypress Semiconductor
Corp. All other trademarks are property of their owners.
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