Datasheet

MAX9940
Signal-Line Overvoltage Protector
for Low-Voltage Devices
_______________________________________________________________________________________ 7
MICROCONTROLLER
EXT
GND
INT
V
CC
R
P
2kΩ
V
DD
= 3.3V
MAX9940
DATA
Rx
Tx
1-Wire
DEVICE
Rx
Tx
Figure 3. Recommended Operating Circuit for Nonbattery-Operated Applications
MICROCONTROLLER
EXT
GND
INT
ENABLE
V
CC
R
P
2kΩ
V
DD
= 3.3V
MAX9940
1-Wire
DEVICE
Rx
Tx
DATA
Rx
Tx
Figure 2. Recommended Scheme for Applications that Require the MAX9940 to be Put into Shutdown