QST608 ST Microelectronics, QST608 Datasheet - Page 6

• Manufacturer Part Number: QST608
• Description: Capacitive touch sensor device
• Manufacturer: ST Microelectronics

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Pin description
6/44
Table 2.
1. S: supply pin, BD: bidirectional pin, SNS: capacitive sensing pin, PP: Output push-pull, OD: Output open-
2. During reset phase, these pins are floating and their state depends on the option resistor when available.
3. An external pull-up of 4.7 kOhm (typical) is required on these pins.
Pin
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
drain, TOD: Output true open-drain and HS: 20mA high sink output (on N-buffer only).
SNSA_MCK1
SNSKA_MCK1
SNSB_MCK1
SNSKB_MCK1
SNSC_MCK1
SNSKC_MCK1
SNS_SCK5
SNSK_SCK5
SNS_SCK1
SNSK_SCK1
SNS_SCK2
SNSK_SCK2
SNS_SCK3
SNSK_SCK3
SNS_SCK4
SNSK_SCK4
GPO1/ADD0
GPO2/ADD1
GPO3/ADD2
Pin name
Device pin description (continued)
(2)
(2)
(2)
PP (HS)
PP (HS)
PP (HS)
Type
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
SNS
(1)
Rotor/slider 1 electrode A sense pin to Cs
Rotor/slider 1 electrode A sense pin to
Cs/Rs
Rotor/slider 1 electrode B sense pin to Cs
Rotor/slider 1 electrode B sense pin to
Cs/Rs
Rotor/slider 1 electrode C sense pin to Cs
Rotor/slider 1 electrode C sense pin to
Cs/Rs
Key 5 sense pin to Cs
Key 5 sense pin to Cs/Rs
Key 1 sense pin to Cs
Key 1 sense pin to Cs/Rs
Key 2 sense pin to Cs
Key 2 sense pin to Cs/Rs
Key 3 sense pin to Cs
Key 3 sense pin to Cs/Rs
Key 4 sense pin to Cs
Key 4 sense pin to Cs/Rs
General purpose output 1 and
I
General purpose output 2 and
I
General purpose output 3 and
I
2
2
2
C address bit 0 option resistor
C address bit 1 option resistor
C address bit 2 option resistor
Function
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Option resistor
Option resistor
Option resistor
If unused
QST608