Rainbow Electronics MAX7358 - Manual (Page 7)

MAX7356/MAX7357/MAX7358
1-to-8 I
2
C Bus Switches/Multiplexers with Bus
Lock-Up Detection, Isolation, and Notification
_______________________________________________________________________________________ 7
PROTOCOL
SCL
SDA
START
CONDITION
(S)
BIT 7
MSB
(A7)
BIT 6
(A6)
BIT 0
(R/W)
ACKNOWLEDGE
(A)
STOP
CONDITION
(P)
t
SU;STA
t
LOW
t
HIGH
t
BUF
t HD;STA
t r t f
t
SU;DAT
t HD;DAT t VD;DAT t VD;ACK t SU;STO
1/f SCL
Figure 3. I 2 C Bus Timing Diagram
Figure 4. Switch Output Voltage and Current
DEVICE
+
-
V SWin I SWout
V
SW
V SW vs. SUPPLY VOLTAGE
MAX7356 toc01
V DD (V)
V
SW
(V)
4.7 3.9 3.1
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
2.3 5.5
I
SWout
= 100 µA
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX7356 toc02
V DD (V)
I DD
(µ
A)
4.7 3.9 3.1
20
40
60
80
100
0
2.3 5.5
f SCL = 400kHz
ENHANCED MODE
BASIC MODE
SUPPLY CURRENT vs. SCL FREQUENCY
MAX7356 toc03
f SCL (kHz)
I DD
(µ
A)
300 200 100
20
40
60
80
100
0
0 400
ENHANCED MODE
BASIC MODE
Typical Operating Characteristics
(V DD = +5V, T A = +25°C, unless otherwise noted.)