Preliminary

TTP226

10’/01/13

Page 4 of 15

Ver : 1.3

PIN DESCRIPTION

Pin No. Pin Name Share Pin I/O Type

Pin Description

1

OSC2

I/O

Sensor oscillator

2

TOPAD

I

It is the common point of input port internal

3

I7

I

Input port

4

I6

I

Input port

5

NC

6

NC

7

NC

8

I5

I

Input port

9

I4

I

Input port

10

I3

I

Input port

11

I2

I

Input port

12

I1

I

Input port

13

I0

I

Input port

14

OPW0

I-PH

OPW0~1 are option pins to select the windows of key-detected

15

OPW1

I-PH

OPW0~1 are option pins to select the windows of key-detected

16

OPT0

I-PH

OPT0~1 are option pins to select the time of key-on

17

NC

18

OPT1

I-PH

OPT0~1 are option pins to select the time of key-on

19

NC

20

NC

21

OSC1

I/O

System oscillator pin

22

VSS

P

Negative power supply，ground

23

VDD

P

Positive power supply

24

OPS1

I-PH

Output type option pin

25

OPS0

I-PH

Output type option pin

26

AHL

I-PH

Output active high or low selection

27

TEST

I-PH

Only for test，when normal function must be connected to VSS

28

Q0

(DO/SCN0)

I/O

Q0 is output pin on direct mode

DO is the shifted data output pin on serial mode

SCN0 is the first scanning pin on matrix mode

29

Q1

(SCN1)

I/O

Q1 is output pin on direct mode

SCN1 is the second scanning pin on matrix mode

30

NC

31

OPST

I-PH

Selecting the base step of sensitivity

32

NC

33

Q2

(SCN2)

I/O

Q2 is output pin on direct mode

SCN2 is the third scanning pin on matrix mode

34

Q3

(SCN3)

I/O

Q3 is output pin on direct mode

SCN3 is the fourth scanning pin on matrix mode

35

Q4

(SCN4)

I/O

Q4 is output pin on direct mode

SCN4 is the fifth scanning pin on matrix mode

36

Q5

(SCN5)

I/O

Q5 is output pin on direct mode

SCN5 is the sixth scanning pin on matrix mode

37

Q6

(RST)

I/O

Q6 is output pin on direct mode

RST is the reset input pin on serial mode

38

Q7

(CK)

I/O

Q7 is output pin on direct mode

CK is the clock input pin on serial mode

39

DV

O

Data valid output signal

40

VSS

P

Negative power supply，ground

41

SLSE0

I-PH

SLSE0~5 are option pins to selected the sensitivity

42

NC

43

SLSE1

I-PH

SLSE0~5 are option pins to selected the sensitivity

44

NC

45

SLSE2

I-PH

SLSE0~5 are option pins to selected the sensitivity

46

SLSE3

I-PH

SLSE0~5 are option pins to selected the sensitivity

47

SLSE4

I-PH

SLSE0~5 are option pins to selected the sensitivity

48

SLSE5

I-PH

SLSE0~5 are option pins to selected the sensitivity

Note: > CK and RST input with protection resistor for output collision.

Pin Type

I

CMOS input only

O

CMOS push-pull output

I/O

CMOS I/O

I-PH

CMOS input and pull-high resister

P

Power / Ground