AD5243EVAL Analog Devices Inc, AD5243EVAL Datasheet - Page 17

• Manufacturer Part Number: AD5243EVAL
• Description: BOARD EVAL FOR AD5243
• Manufacturer: Analog Devices Inc

Specifications of AD5243EVAL

• Rohs Status: RoHS non-compliant
• Main Purpose: Digital Potentiometer
• Utilized Ic / Part: AD5243
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

Write Mode
Table 9. AD5243 Write Mode
S
Table 10. AD5248 Write Mode
S
Read Mode
Table 11. AD5243 Read Mode
S
Table 12. AD5248 Read Mode
S
Table 13. SDA Bits Descriptions
Bit
S
P
A
AD0, AD1
X
W
R
A0
SD
T
OW
D7, D6, D5, D4, D3, D2, D1, D0
0
0
0
0
1
1
1
Slave address byte
0
1
0
Slave address byte
1
1
0
0
1
Slave address byte
1
1
Slave address byte
AD1
1
1
1
1
1
AD0
W
AD1
1
W
Description
Start condition.
Stop condition.
Acknowledge.
Package pin-programmable address bits.
Don’t care.
Write.
Read.
RDAC subaddress select bit.
Shutdown connects wiper to B terminal and open circuits the A terminal. It does not change the
contents of the wiper register.
OTP programming bit. Logic 1 programs the wiper permanently.
Overwrites the fuse setting and programs the digital potentiometer to a different setting. Upon
power-up, the digital potentiometer is preset to either midscale or fuse setting, depending on
whether the fuse link was blown.
Data bits.
A
1
A
A0
AD0
A0
R
SD
SD
Instruction byte
R
X
A
Instruction byte
X
X
A
Rev. A | Page 17 of 20
D7
X
X
D7
X
X
D6
X
X
D6
X
X
D5
X
A
D5
A
D7
D4
D7
Data byte
D4
D6
Data byte
D6
D3
D5
D3
D5
D4
D2
Data byte
Data byte
D4
D2
D3
D3
D1
AD5243/AD5248
D1
D2
D2
D0
D1
D0
D1
D0
D0
A
A
A
A
P
P
P
P