isl90727 Intersil Corporation, isl90727 Datasheet - Page 7

• Manufacturer Part Number: isl90727
• Description: Single Volatile 128-tap Digitally Controlled Potentiometer Xdcp?
• Manufacturer: Intersil Corporation

SDA OUTPUT FROM
SDA OUTPUT FROM
TRANSMITTER
SIGNAL AT SDA
FROM THE
SCL FROM
RECEIVER
SDA
SCL
SIGNALS
MASTER
SIGNALS FROM
MASTER
THE SLAVE
SIGNALS FROM
SIGNAL AT SDA
SIGNALS FROM
THE MASTER
THE ISL23711
7
S
A
R
T
T
START
FIGURE 1. VALID DATA CHANGES, START AND STOP CONDITIONS
START
FIGURE 3. BYTE WRITE SEQUENCE (ISL90727 VERSION SHOWN)
0
IDENTIFICATION
1
FIGURE 4. READ SEQUENCE (ISL90727 VERSION SHOWN)
FIGURE 2. ACKNOWLEDGE RESPONSE FROM RECEIVER
BYTE WITH
0
R/W=0
1
HIGH IMPEDANCE
1 1 0
S
T
A
R
T
0
IDENTIFICATION
0
1
1
ISL90727, ISL90728
A
C
K
0
BYTE
1
0 0 0
STABLE
1
DATA
ADDRESS
1
BYTE
0
0
WRITE
0
0 0
A
C
K
CHANGE
0 0
DATA
0 0 0 0
ADDRESS
A
C
K
BYTE
A
R
0 0 0 0 0 0
S
T
T
STABLE
0
IDENTIFICATION
DATA
1
BYTE WITH
0
R/W=1
1
1 1 0
8
A
C
K
1
BYTE
DATA
A
C
K
DATA BYTE
HIGH IMPEDANCE
STOP
ACK
9
A
C
K
O
S
T
P
S
O
P
T
August 2, 2006
FN8247.4