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TTP239 데이터시트(PDF) 11 Page - Tontek Design Technology

부품명 TTP239
상세설명  8 keys Touch Pad Detector IC
PDF  16 Pages
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제조업체  TONTEK [Tontek Design Technology]
홈페이지  http://www.tontek.com.tw
Logo TONTEK - Tontek Design Technology

TTP239 데이터시트(HTML) 11 Page - Tontek Design Technology

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TTP239
2016/3/7
Page 11 of 16
Version：1.1
from master
NOT ACK
Stop
from slave
ACK
Start
Slave Address
Data_0
B0
B1
B2
B3
B4
B5
B6
B7
R
A0
Note : Data_0 : B7~B0 are TP0~TP7 on/off status. 0 is key off, 1 is key on.
Figure 7-2-1. Read Operation Sequence
START
Condition
P
STOP condition
Change
Data
Data or
ACK Valid
SCL
S
SDA
Figure 7-2-2. Data Transmission Sequence
Condition
STOP
ACK
P
9
Condition
START
DATA
ACK
R/W
ADDRESS
S
8
1 - 7
9
8
1 - 7
SCL
SDA
Figure 7-2-3. A complete data transfer
BUF
t
SU;STO
r
t
r
t
t
HD;STA
t
SU;STA
t
f
t
f
t
SU;DAT
t
HIGH
t
HD;STA
t
HD;DAT
t
LOW
t
S
P
Sr
S
SCL
SDA
Figure 7-2-4. Definition of timing for F/S-mode devices on the I2C-bus



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