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BU2098FS-E2 Datasheet(PDF) 7 Page - Rohm

No. de pieza BU2098FS-E2
Descripción Electrónicos  Serial / Parallel 2-input Drivers
Download  13 Pages
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Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BU2098FS-E2 Datasheet(HTML) 7 Page - Rohm

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BU2098F, BU2090F, BU2090FS
Technical Note
7/12
www.rohm.com
2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
Write DATA
Send the stave address from master following the start condition (S). This address consists of 7 bits. The left 1 bit (the foot
bit) is fixed “0”. The stop condition (P) is needed to finish the data transferred. But the re-send starting condition (Sr)
enables to transfer the data without STOP (P).
Fig.4 DATA transmit
Data format
The format is following.
Table 1 for WRITE format
Slave address
A0~A2
Each bit can be defined by the input levels of pins A0~A3.
A3~A6
These 4 bits are fixed.
R/W
“0”
Write Data
D0~D7
Write “1” to D0 makes Q0 pin High-impedance. And write “0” makes Q0 pin
LOW. D[1:7] and Q[1:7] are same as D0 and Q0.
Table 2 for (A2, A1, A0) to SLAVE ADDRESS
A6
A5
A4
A3
A2
A1
A0
Slave address
0
1
1
1
0
0
0
38H
0
1
1
1
0
0
1
39H
0
1
1
1
0
1
0
3AH
0
1
1
1
0
1
1
3BH
0
1
1
1
1
0
0
3CH
0
1
1
1
1
0
1
3DH
0
1
1
1
1
1
0
3EH
0
1
1
1
1
1
1
3FH
S
slave address
R/W
ACK
DATA
ACK
P
S
slave address
R/W
ACK
DATA
ACK
Sr
slave address
R/W
ACK
DATA
ACK
P
S
A6
A5
A4
A3
A2
A1
A0
R/W ACK
D6
D5
D4
D3
D2
D1
D0
D7
ACK
P
SLAVE ADDRESS
WRITE DATA
Fixed for BU2098F
Defined by external pin A0~A2
“0” (Write)
“0” (Write)
“0” (Write)


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