MAX7705C View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX7705C

µP Power-Supply Monitor with Reset

Maxim Integrated 

µP Power-Supply Monitor

with Reset

Interfacing to µPs with

Bidirectional Reset Inputs

µPs with bidirectional reset pins, such as Motorola’s

68HC11 series, can contend with the MAX7705 reset

output. If, for example, the MAX7705 RESET output is

asserted high and the µP wants to pull it low, an inde-

terminate logic level may result. To correct this, con-

nect a 4.7kΩ resistor between the MAX7705 RESET

output and the µP reset I/O, as in Figure 3. Buffer the

RESET signal to other system components.

___________________Chip Topography

VCC

RESET

0.045"

(1.143mm)

VCC

MAX7705

4.7k

RESET

GND

BUFFER

VCC

µP

RESET

GND

BUFFERED RESET

TO OTHER SYSTEM

COMPONENTS

GND

0.056"

(1.422mm)

TRANSISTOR COUNT = 380;

SUBSTRATE CONNECTED TO VCC.

Figure 3. Interfacing to µPs with Bidirectional Reset I/O

_______________________________________________________________________________________ 5

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