EVAL-AD5252EBZ Analog Devices Inc, EVAL-AD5252EBZ Datasheet - Page 17

• Manufacturer Part Number: EVAL-AD5252EBZ
• Description: EVALUATION BOARD
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD5252EBZ

• Main Purpose: Digital Potentiometer
• Utilized Ic / Part: AD5252
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

S
SLAVE ADDRESS
S
0
1
SLAVE ADDRESS
0
1
Figure 29. RDAC Current Read (Restricted to Previously Selected Address Stored in the Register)
S = START CONDITION
P = STOP CONDITION
A = ACKNOWLEDGE (SDA LOW)
A = NOT ACKNOWLEDGE (SDA HIGH)
AD1, AD0 = I
R/W = READ ENABLE BIT, LOGIC HIGH/WRITE ENABLE BIT, LOGIC LOW
CMD/REG = COMMAND ENABLE BIT, LOGIC HIGH/REGISTER ACCESS BIT, LOGIC LOW
C3, C2, C1, C0 = COMMAND BITS
A2, A1, A0 = RDAC/EEMEM REGISTER ADDRESSES
1
S
0 WRITE
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
A
D
1
0
0
RDAC SLAVE ADDRESS
A
D
0
1
1 READ
A
1
2
0
C DEVICE ADDRESS BITS; MUST MATCH WITH THE LOGIC STATES AT PINS AD1, AD0
A
INSTRUCTION AND
1
Figure 31. RDAC Quick Command Write (Dummy Write)
1
ADDRESS
A
D
1
EEMEM OR REGISTER DATA
Figure 30. RDAC or EEMEM Random Read
A
D
0
0 WRITE
0
RDAC1
A
Rev. B | Page 17 of 28
REPEATED START
1 CMD
CMD/
REG
A
S
C
3
C
2
(N BYTES + ACKNOWLEDGE)
SLAVE ADDRESS
C
1
A
C
0
DATA
A
2
X
A
1
A
A
0
1 READ
A
EEMEM OR REGISTER DATA
1
P
A
RDAC3
(N BYTES + ACKNOWLEDGE)
EEMEM DATA
RDAC OR
AD5251/AD5252
A/
A
P
A/A
P