QT60240-ATG Datasheet, PDF (8/26 Pages) List of Unclassifed Manufacturers – 16 AND 24 KEY QMATRIX TOUCH SENSOR ICs

2.16 Wiring
Pin Function
1
M_SYNC
2
CHANGE
3
Vss
4
Vdd
5
Vss
6
Vdd
7
X6
8
X7
9
LATCH
10
Vref
11
S_SYNC
12
X0
13
X1
14
X2
15
X3
16
X4
17
X5
18
Vdd
19
A1
20
Vdd
21
Vss
22
A0
23
Y0B
24
Y1B
25
Y2B
26
SMP
27
SDA
28
SCL
29
/RST
30
Y0A
31
Y1A
32
Y2A
Table 2.2 Pin Listing
I/O
Comments
I Mains Sync input
O State change notification
P Supply ground
P Power, +1.8V to +5V
P Supply ground
P Power, +1.8V to +5V
O X matrix drive line
O X matrix drive line
O Shift Register Latch Output
I Ground
O Oscilloscope sync
O X matrix drive line
O X matrix drive line
O X matrix drive line
O X matrix drive line
O X matrix drive line
O X matrix drive line
P Power, +1.8V to +5V
I Com port address 1
P Power, +1.8V to +5V
P Supply ground
I Com port address 0
I Y line connection
I Y line connection
I Y line connection
O Sample output.
I/O Serial Interface Data
I/O Serial Interface Clock
I Reset low; has internal 30K - 60K pull-up
I Y line connection
I Y line connection
I Y line connection
I
Input only
O Output only, push-pull
OD Open drain output
I/O Input and output
P Ground or power
If Unused, Connect To...
Vdd
Leave open
-
-
-
-
Leave open
Leave open
Leave open
-
Leave open
Leave open
Leave open
Leave open
Leave open
Leave open
Leave open
-
-
-
-
-
Leave open
Leave open
Leave open
-
-
-
Leave open or Vdd
Leave open
Leave open
Leave open
lQ
8
QT60240-ISG R8.06/0906