2-Wire Interfaced, 2.7V to 5.5V LED Display
Driver with I/O Expander and Key Scan
SDA
SCL
tHD, STA
START
CONDITION
tSU, DAT
tLOW
tHIGH
tR
tF
tHD, DAT
Figure 2. 2-Wire Serial Interface Timing Details
tSU, STA
tHD, STA
REPEATED START
CONDITION
tBUF
tSU, STO
STOP
START
CONDITION CONDITION
SDA
SCL
S
START CONDITION
Figure 3. Start and Stop Conditions
P
STOP CONDITION
SDA
1
1
0
A3
A2
A1
A0
R/W
ACK
START
MSB
LSB
SCL
Figure 4. Slave Address
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