MAX709 Maxim, MAX709 Datasheet - Page 5

• Manufacturer Part Number: MAX709
• Description: Power-Supply Monitor with Reset
• Manufacturer: Maxim

Figure 2. RESET Valid to V
Microprocessors with bidirectional reset pins (such as
the Motorola 68HC11 series) can contend with the
MAX709 reset output. If, for example the MAX709
RESET output is asserted high and the µP wants to pull
it low, indeterminate logic levels may result. To correct
this, connect a 4.7kΩ resistor between the MAX709
RESET output and the µP reset I/O (see Figure 3).
Buffer the MAX709 RESET output to other system com-
ponents.
_______________________________________________________________________________________
MAX709
Bidirectional Reset Pins
GND
V
CC
Interfacing to µPs with
RESET
CC
= Ground Circuit
Power-Supply Monitor with Reset
R1
Figure 3. Interfacing to µPs with Bidirectional Reset I/O
MAX709
GND
V
CC
RESET
4.7k
RESET
BUFFER
GND
V
CC
P
BUFFERED RESET
TO OTHER SYSTEM
COMPONENTS
5