EVAL-AD5254EBZ Analog Devices Inc, EVAL-AD5254EBZ Datasheet - Page 14

• Manufacturer Part Number: EVAL-AD5254EBZ
• Description: Evaluation Board
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD5254EBZ

• Main Purpose: Digital Potentiometer
• Utilized Ic / Part: AD5245
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD5253/AD5254
I
I
S = start condition
P = stop condition
A = acknowledge (SDA low)
A = not acknowledge (SDA high)
R/ W = read enable at high; write enable at low
2
2
C INTERFACE GENERAL DESCRIPTION
C INTERFACE
From Master to Slave
From Slave to Master
SDA
SCL
S
SLAVE ADDRESS
P
S
S
(7-BIT)
t
1
S
SLAVE ADDRESS
SLAVE ADDRESS
t
READ OR WRITE
2
(7-BIT)
(7-BIT)
R/W
t
3
A
t
8
t
8
0 WRITE
1 READ
ACKNOWLEDGE)
R/W
R/W
DATA
Figure 25. I
t
(N BYTES +
9
Figure 24. I
Figure 23. I
Figure 26. I
A
A
t
6
2
C—Master Reading Data from Slave
2
t
C—Master Writing Data to Slave
Rev. B | Page 14 of 32
4
t
9
2
C Interface Timing Diagram
2
INSTRUCTIONS
A/A
C—Combined Write/Read
REPEATED START
(8-BIT)
(8-BIT)
DATA
S
t
7
SLAVE ADDRESS
(N BYTES + ACKNOWLEDGE)
(N BYTES + ACKNOWLEDGE)
DATA TRANSFERRED
DATA TRANSFERRED
A
A
S
DIRECTION OF TRANSFER MAY
t
5
CHANGE AT THIS POINT
OR WRITE
READ
R/W
t
2
(8-BIT)
(8-BIT)
DATA
DATA
A
ACKNOWLEDGE)
DATA
(N BYTES +
A/A
A
P
P
A/A
P
t
10
P