CY8CMBR2044_12 CYPRESS [Cypress Semiconductor], CY8CMBR2044_12 Datasheet - Page 6

• Manufacturer Part Number: CY8CMBR2044_12
• Manufacturer: CYPRESS [Cypress Semiconductor]

Configuring the CY8CMBR2044
The CY8CMBR2044 device features are configured using
external resistors.
The resistors on the hardware configurable pins are determined
by the device upon power-on.
The
different external resistor configurations.
To know more about the required settings for your design, refer
to the
Device Features
CapSense Buttons
■
■
■
■
SmartSense Auto Tuning
■
■
■
Document Number: 001-57451 Rev. *E
Note
3. When a pin in in strong drive mode, it is pulled up to V
Device supports up to four CapSense buttons
Ground the CSx pin to disable CapSense input
A 2.2-nF (+10%) capacitor must be connected on the C
for proper CapSense operation
The parasitic Capacitance (C
than 40 pF for proper CapSense operation
Device supports auto tuning of CapSense parameters
No manual tuning required; all parameters are automatically
tuned by the device
Compensates printed circuit board (PCB) variations, device
process variations, and PCB vendor changes
Appendix
CY8CMBR2044 Design
gives the matrix of features enabled using
Guide.
P
) of each button must be less
DD
when the output is HIGH and pulled down to Ground when the output is LOW. The output cannot be floating.
MOD
pin
■
General Purpose Outputs
■
■
■
■
■
Table 2. Advanced Features supported by CY8CMBR2044
Toggle ON/OFF
Flanking Sensor Suppression
(FSS)
LED ON Time
Button Auto Reset
System Diagnostics
Serial Debug Data
Low Power Sleep Mode
Deep Sleep Mode
Ensures portability of the user interface design
The GPOx is controlled by the corresponding CSx
GPOx pin outputs are in strong drive mode
Active low output – supports sinking configuration
If CSx is disabled (grounded), then the corresponding GPOx
must be left floating
A 5-ms pulse is sent after 175 ms after device power-up, on a
GPOx, if the CSx fails the System Diagnostics.
Feature
and
Button retains state on touch
(ON/OFF)
Helps in distinguishing closely
spaced buttons
Gives an LED effect on button
release
Disables false output trigger
due to conducting object
placed close to button
Support for production testing
and debugging
Support for production testing
and validating design
Low power consumption
CY8CMBR2044
Benefits
[3]
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