Datasheet
MAX4571–MAX4574
Serially Controlled, Clickless
Audio/Video Switches
______________________________________________________________________________________ 13
SCL
SDA
t
LOW
t
HIGH
t
F
t
R
t
HD
,
STA
t
HD
,
DAT
t
HD
,
STA
t
SU
,
DAT
t
SU
,
STA
t
BUF
t
SU
,
STO
START CONDITIONSTOP CONDITIONREPEATED START CONDITIONSTART CONDITION
20%
70%
20%
70%
20%
70%
20%
70%
20%
70%
20%
70%
20%
70% 70%
20%
70% 70% 70%
Figure 3. 2-Wire Serial-Interface Timing Diagram
START CONDITION
STOP CONDITION
FIRST DATA BYTE
SECOND DATA BYTE
COMMAND BYTE
ADDRESS BYTE
SCL
SDA
MSB
MSB
MSB MSBLSB LSB LSB
LSB
ACK ACK ACK ACK
Figure 4. A Complete 2-Wire Serial-Interface Transmission
Table 4. 3-Wire Serial-Interface Data Format
D15
C1
D14
C0
D12
X
D13
X
D10
SW11
D11 D8
SW9X
D9
SW10
D6
SW7
D7 D4
SW5SW8
D5
SW6
D2
SW3
MAX4573 (11 SPST)
D3 D0
SW1SW4
D1
SW2
COMMAND SWITCH CONTROL
MSB LSB
COMMAND
D14
C0
D15 D12
SW5C1
D13
SW8
D10
SW7A
D11 D8
SW6ASW7B
SWITCH CONTROL
D9
SW6B
D6
SW4A
D7 D4
SW3ASW4B
D5
SW3B
D2
SW2A
MAX4574 (6 SPDT + 2 SPST)
D3 D0
SW1ASW2B
MSB LSB
D1
SW1B