CY8CMBR2016-24LQXI Cypress Semiconductor, CY8CMBR2016-24LQXI Datasheet - Page 12

• Manufacturer Part Number: CY8CMBR2016-24LQXI
• Description: Touch Screen Converters & Controllers
• Manufacturer: Cypress Semiconductor
• Type: Capacitive Touch Controllersr

Specifications of CY8CMBR2016-24LQXI

• Rohs: yes
• Input Type: 16 Key
• Supply Voltage: 1.71 V to 5.5 V
• Supply Current: 3.3 mA
• Operating Temperature: - 40 C to + 85 C
• Package / Case: QFN-48
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 490
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 1.71 V

Button Shorted to V
If any button is shorted to V
corresponding bit field is set and System Diagnostics data is sent
as defined in button to GND short section.
Document Number: 001-67921 Rev. *C
Figure 12. Button Shorted to V
Figure 11. Button Shorted to GND
shorting
shorting
Button
Button
DD
V
DD
DD
Figure 10. System Diagnostics of Disabled Button - Scenario 2
that button is disabled and the
DD
CY8CMBR2016
CY8CMBR2016
Button to Button Short
Any button that are shorted together are disabled and the
corresponding bit field is set and System Diagnostics data is sent
as defined in button to GND short section.
Improper Value of C
■
■
Button C
If the parasitic capacitance (C
button is disabled and the corresponding bit field is set and
System Diagnostics data is sent as defined in button to GND
short section.
Serial Debug Data Out
■
■
■
■
■
For more information on Raw Count, Baseline, Difference Count,
and Parasitic Capacitance, refer
section 2.
Figure 13. Button to Button Short
Recommended value of C
If C
and the status output will be logic high on all slots.
Used to see CapSense data through the Debug pin.
To enable this feature, the DEBUG pin is pulled down with a
5.6 K resistor.
The Cypress MultiChart tool can be used to view the debug
data for each button
Serial data is sent out at ~115,200 baud rate
Firmware revision, CapSense status, baseline, raw counts,
difference counts and parasitic capacitances of all sensors are
sent out
MOD
P
shorting
of < 1 nF or > 4 nF is connected, all buttons are disabled
> 40 pF
Button
Button
MOD
MOD
P
) of any button exceeds 40 pF that
Getting Started with
is 2 nF to 2.4 nF.
CY8CMBR2016
CY8CMBR2016
Page 12 of 28
CapSense,