Datasheet
CY8CMBR3002, CY8CMBR3102
CY8CMBR3106S, CY8CMBR3108
CY8CMBR3110, CY8CMBR3116 Datasheet
Document Number: 001-85330 Rev. *G Page 6 of 37
Pinouts
CY8CMBR3116 (16 Sensing Inputs)
Table 1. Pin Diagram and Definitions - CY8CMBR3116
24-QFN
Pin Diagram
Pin # Pin Name Type Description If unused
Default
Configuration
1 CS0/PS0 – CapSense button / proximity sensor,
controls GPO0
Ground/Ground CS0
2 CS1/PS1 – CapSense button / proximity sensor,
controls GPO1
Ground/Ground CS1
3 CS2/GUARD – CapSense button / guard sensor,
controls GPO2
Ground/Ground CS2
4 CS3 – CapSense button, controls GPO3 Ground CS3
5
CMOD – External modulator capacitor. Connect
2.2 nF/5 V/X7R or NPO capacitor
NA CMOD
6
VCC Power Internal regulator output. Connect a
0.1-µF decoupling capacitor if VDD >
1.8 V. If VDD is 1.71 V to 1.89 V, short
this pin to VDD.
NA VCC
7 VDD Power Power NA VDD
8 VSS Power Ground NA VSS
9 CS15/SH/HI I/DO CapSense button / shield electrode/
Host Interrupt (SPO1 in the register
map)
Ground/Leave
open/Leave open
HI
10 CS14/GPO6 I/DO CapSense button / general purpose
output (GPO)
Ground/Leave open GPO6
11 CS13/GPO5 I/DO CapSense button / GPO Ground/Leave open GPO5
12 CS12/GPO4 I/DO CapSense button / GPO Ground/Leave open GPO4
13 CS11/GPO3 I/DO CapSense button / GPO Ground/Leave open GPO3
14 CS10/GPO2 I/DO CapSense button / GPO Ground/Leave open GPO2
15 CS9/GPO1 I/DO CapSense button / GPO Ground/Leave open GPO1
16 CS8/GPO0 I/DO CapSense button / GPO Ground/Leave open GPO0
17 CS7 – CapSense button, controls GPO7 Ground CS7
18 CS6 – CapSense button, controls GPO6
Leave open CS6
19 CS5 – CapSense button, controls GPO5 Ground CS5
20
CS4 – CapSense button, controls GPO4 Ground CS4
21
I2C SDA DIO I2C data Leave open I2C SDA
22 I2C SCL DIO I2C clock Leave open I2C SCL
23
HI/BUZ/
GPO7
DO Host Interrupt/buzzer output/ GPO
(SPO0 in the register map)
Leave open/ leave
open/ leave open
GPO7
24
XRES XRES Active Low external reset (an active low
pulse on this pin resets the CapSense
Controller)
Leave open XRES
25 Center Pad
[1]
E-pad Connect to VSS for best mechanical,
thermal, and electrical performance
Floating, not
connected to any
other signal
E-pad
Legend: I = Analog Input, O = Analog Output, DIO = Digital Input/Output, DO = Digital Output, CS = CapSense Button, PS = Proximity Sensor
SH = Shield Electrode, BUZ = Buzzer Output, GPO = General Purpose Output, GUARD = Guard Sensor, SPO = Special purpose output.
Note
1. The center pad on the QFN package should be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If it is not connected to ground,
it should be left floating without being connected to any other signal.
QFN
(Top View)
CS0/PS0
CS3
CMOD
VCC
1
2
3
4
5
6
18
17
16
15
14
13
CS7
CS8/GPO0
24
23
22
21
20
19
HI/BUZ/GPO7
I2C SCL
I2C SDA
CS4
CS6
7
8
9
10
11
12
VDD
4/GPO6
3/GPO5
CS2/GUARD
VSS
CS11/GPO3
2/GPO4
CS10/GPO2
CS9/GPO1
CS5
XRES
5/SH/HI
CS1/PS1