ISL23711 Datasheet, PDF (8/9 Pages) Intersil Corporation – Terminal Voltage +- 3V or +- 5V, 128 Taps IC Serial Interface

ISL23711
SCL
SDA
START
DATA
DATA
DATA
STABLE CHANGE STABLE
STOP
FIGURE 1. VALID DATA CHANGES, START, AND STOP CONDITIONS
SCL FROM
MASTER
1
SDA OUTPUT FROM
TRANSMITTER
8
9
HIGH IMPEDANCE
SDA OUTPUT FROM
RECEIVER
HIGH IMPEDANCE
START
FIGURE 2. ACKNOWLEDGE RESPONSE FROM RECEIVER
ACK
SIGNALS FROM
THE MASTER
WRITE
S
T
A _{IDENTIFICATION}
R
BYTE
T
ADDRESS
BYTE
S
DATA
T
BYTE
O
P
SIGNAL AT SDA
0 1 0 1 0 A1 A0 0 0 0 0 0 0 0 0 0
SIGNALS FROM
THE ISL23711
A
A
A
C
C
C
K
K
K
FIGURE 3. BYTE WRITE SEQUENCE
S
SIGNALS
T
FROM THE
MASTER
A IDENTIFICATION
R BYTE WITH
S
T
T
R/W=1
O
P
SIGNAL AT SDA
0 1 0 1 0 A1 A0 1
SIGNALS FROM
THE SLAVE
A
C _{DATA BYTE READ}
K _{BY MASTER}
FIGURE 4. READ SEQUENCE
8
FN6127.0
August 16, 2005