CY8C201A0_12 Datasheet, PDF (1/38 Pages) Cypress Semiconductor – CapSense® Express™ Slider Capacitive Controllers

CY8C201A0
CapSense^® Express™ Slider
Capacitive Controllers
CapSense® Express™ Slider Capacitive Controllers
Features
■ Capacitive slider and button input
❐ Choice of configurations:
• 10-segment slider
• 5-segment slider with remaining 5 pins configurable as
CapSense^® or GPIO
❐ Robust sensing algorithm
❐ High sensitivity, low noise
❐ Immunity to RF and AC noise.
❐ Low radiated EMC noise
❐ Supports wide range of input capacitance, sensor shapes,
and sizes
■ Target applications
❐ Printers
❐ Cellular handsets
❐ LCD monitors
❐ Portable DVD players
■ Low operating current
❐ Active current: continuous sensor scan: 1.5 mA
❐ Deep sleep current: 4 µA
■ Industry's best configurability
❐ Custom sensor tuning, one optional capacitor
❐ Output supports strong drive for LED
❐ Output state can be controlled through I²C or directly from
CapSense input state
❐ Run time reconfigurable over I²C
■ Advanced features
❐ Interrupt outputs
❐ User defined Inputs
❐ Wake on interrupt input
❐ Sleep control pin
❐ Nonvolatile storage of custom settings
❐ Easy integration into existing products – configure output to
match system
❐ No external components required
❐ World class free configuration tool
■ Wide range of operating voltages
❐ 2.4 V to 2.9 V
❐ 3.10 V to 3.6 V
❐ 4.75 V to 5.25 V
■ I²C communication
❐ Supported from 1.8 V
❐ Internal pull-up resistor support option
❐ Data rate up to 400 kbps
❐ Configurable I²C addressing
■ Industrial temperature range: –40 °C to +85 °C.
■ Available in 16-pin QFN and 16-pin SOIC Package
Overview
These CapSense Express™ controllers support 4 to 10
capacitive sensing CapSense buttons. The device functionality
is configured through an I²C port and can be stored in onboard
nonvolatile memory for automatic loading at power on. The
CapSense Express controller enables the control of 10 I/Os
configurable as one capacitive sensing slider (10 segments)^[1] or
one slider (5 segments) with the rest of the pins as buttons or
GPIOs (for driving LEDs or interrupt signals based on various
button conditions).
The four key blocks that make up these devices are: a robust
capacitive sensing core with high immunity against radiated and
conductive noise, control registers with nonvolatile storage,
configurable outputs, and I²C communications. The user can
configure registers with parameters needed to adjust the
operation and sensitivity of the CapSense buttons and outputs
and permanently store the settings. The standard I²C serial
communication interface enables the host to configure the
device and to read sensor information in real time. The I²C
address is fully configurable without any external hardware
strapping.
Note
1. This part should be selected only if the design requires a slider. This part cannot be configured to work without a slider. For 10 I/O requirements use CY8C20110.
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-54607 Rev. *G
• San Jose, CA 95134-1709 • 408-943-2600
Revised May 31, 2012