EVAL-AD5246EBZ Analog Devices Inc, EVAL-AD5246EBZ Datasheet - Page 12

• Manufacturer Part Number: EVAL-AD5246EBZ
• Description: EVALUATION BOARD I.C.
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD5246EBZ

• Main Purpose: Digital Potentiometer
• Embedded: No
• Utilized Ic / Part: AD5246
• Primary Attributes: 1 Channel, 128 Position
• Secondary Attributes: I²C Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD5246
I
Table 6. Write Mode
S
Table 7. Read Mode
S
S = Start Condition.
P = Stop Condition.
A = Acknowledge.
X = Don’t Care.
2
C INTERFACE
SDA
SCL
0
0
P
t
START BY
START BY
1
1
1
MASTER
MASTER
S
Slave Address Byte
0
0
SCL
SDA
Slave Address Byte
SDA
t
SCL
2
1
1
1
0
1
0
t
SLAVE ADDRESS BYTE
3
1
1
1
1
SLAVE ADDRESS BYTE
FRAME 1
0
t
0
8
t
8
1
1
FRAME 1
1
1
t
9
Figure 26. I
1
1
0
0
Figure 28. Reading from the RDAC Register
Figure 27. Writing to the RDAC Register
t
1
1
6
2
W
R
0
C Interface, Detailed Timing Diagram
0
t
t
4
9
Rev. B | Page 12 of 16
R/W
R/W
A
A
ACK BY
AD5246
ACK BY
AD5246
9
9
X
X
0
1
0
1
t
7
W = Write.
R = Read.
D6, D5, D4, D3, D2, D1, D0 = Data Bits.
D6
D6
D6
D6
D5
D5
RDAC REGISTER
DATA BYTE
FRAME 2
D4
D4
FRAME 2
S
D5
D5
t
5
D3
D3
D4
D4
Data Byte
Data Byte
D2
D2
t
2
D1
D1
D3
D3
D0
D0
ACK BY
AD5246
NO ACK
BY MASTER
9
D2
D2
9
STOP BY
1
MASTER
STOP BY
MASTER
D1
D1
D0
D0
P
A
A
t
10
P
P