Technical Note
BU2098F, BU2090F, BU2090FS
●Timing chart
【BU2098F】
Slave address
Device code
External terminal
SCL
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Start condition
Stop condition
SDA
VCC
A6 A5 A4 A3
A0
ACK
A2 A1
RW
D7
D5
D6
D4 D3 D2 D1 D0 ACK
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
Note) Diagram shows a status where a pull-up resistor is connected to output.
【BU2090F/BU2090FS】
CLOCK
DATA
D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
Note1)
Indicates undefined output.
Note2) Output terminal is provided with a pull-up resistor.
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2009.06 - Rev.A
10/12
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