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AD5173BRM2.5 Datasheet(PDF) 20 Page - Analog Devices

Part No. AD5173BRM2.5
Description  256-Position, One-Time Programmable, Dual-Channel, I2C Digital Potentiometers
Download  24 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD5173BRM2.5 Datasheet(HTML) 20 Page - Analog Devices

Back Button AD5173BRM2.5 Datasheet HTML 16Page - Analog Devices AD5173BRM2.5 Datasheet HTML 17Page - Analog Devices AD5173BRM2.5 Datasheet HTML 18Page - Analog Devices AD5173BRM2.5 Datasheet HTML 19Page - Analog Devices AD5173BRM2.5 Datasheet HTML 20Page - Analog Devices AD5173BRM2.5 Datasheet HTML 21Page - Analog Devices AD5173BRM2.5 Datasheet HTML 22Page - Analog Devices AD5173BRM2.5 Datasheet HTML 23Page - Analog Devices AD5173BRM2.5 Datasheet HTML 24Page - Analog Devices  
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AD5172/AD5173
Rev. H | Page 20 of 24
I2C CONTROLLER PROGRAMMING
Write Bit Patterns
SCL
START BY
MASTER
SDA
01
1
FRAME 1
SLAVE ADDRESS BYTE
0
1111
FRAME 2
INSTRUCTION BYTE
ACK BY
AD5172
R/W
A0
SD
0
OW
X
X
X
1
9
D7
D6
D5
D4
D3
ACK BY
AD5172
FRAME 3
DATA BYTE
1
9
T
STOP BY
MASTER
9
D2
D1
D0
ACK BY
AD5172
Figure 48. Writing to the RDAC Register—AD5172
SCL
START BY
MASTER
SDA
01
1
FRAME 1
SLAVE ADDRESS BYTE
0
1
1
AD1 AD0
FRAME 2
INSTRUCTION BYTE
ACK BY
AD5173
R/W
A0
SD
0
OW
X
X
X
1
9
D7
D6
D5
D4
D3
ACK BY
AD5173
FRAME 3
DATA BYTE
1
9
T
STOP BY
MASTER
9
D2
D1
D0
ACK BY
AD5173
Figure 49. Writing to the RDAC Register—AD5173
Read Bit Patterns
SCL
START BY
MASTER
SDA
01
1
FRAME 1
SLAVE ADDRESS BYTE
01
1
1
1
FRAME 2
INSTRUCTION BYTE
ACK BY
AD5172
R/W
D7
D6
D4D3
D2D1
D0
1
9
E1
E0
X
X
X
ACK BY
MASTER
FRAME 3
DATA BYTE
1
9
D5
STOP BY
MASTER
9
XX
X
NO ACK
BY MASTER
Figure 50. Reading Data from a Previously Selected RDAC Register in Write Mode—AD5172
SCL
START BY
MASTER
SDA
01
1
FRAME 1
SLAVE ADDRESS BYTE
0
1
1 AD1 AD0
FRAME 2
INSTRUCTION BYTE
ACK BY
AD5173
R/W
D7D6
D4
D3
D2
D1D0
1
9
E1
E0
X
X
X
ACK BY
MASTER
FRAME 3
DATA BYTE
1
9
D5
STOP BY
MASTER
9
XX
X
NO ACK
BY MASTER
Figure 51. Reading Data from a Previously Selected RDAC Register in Write Mode—AD5173


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