General Description

The MAX700/MAX701/MAX702 are supervisory circuits

used to monitor the power supplies in microprocessor

(µP) and digital systems. The RESET/RESET outputs of

the MAX700/MAX701/MAX702 are guaranteed to be in

They provide excellent circuit reliability and low cost by

eliminating external components and adjustments when

used with +5V-powered circuits.

The MAX702 is the simplest part in the family. When

provides a debounced manual reset input. The

MAX701 performs the same functions but has both

RESET and RESET outputs. Their primary function is to

provide a system reset. Accordingly, an active reset

signal is supplied for low supply voltages and for at

least 200ms after the supply voltage reaches its operat-

ing value.

In addition to the features of the MAX701 and MAX702,

the MAX700 provides preset or adjustable voltage

detection so thresholds other than 4.65V can be select-

ed, and adjustable hysteresis. All parts are supplied in

8-pin PDIP and Narrow SO packages in commercial

and extended temperature ranges.

Applications

Computers

Controllers

Intelligent Instruments

Automotive Systems

Critical µP Power Monitoring

Features

♦ Min 200ms RESET Pulse on Power-Up, Power-

Down, and During Low-Voltage Conditions

♦ Reset Threshold Factory Trimmed for +5V

Systems

♦ No External Components or Adjustments with

+5V-Powered Circuits

♦ Debounced Manual Reset Input

♦ Preset or Adjustable Voltage Detection (MAX700)

♦ Adjustable Hysteresis (MAX700)

♦ 8-Pin PDIP and Narrow SO Packages

Power-Supply Monitor with Reset

________________________________________________________________

Maxim Integrated Products

1

19-2690; Rev 2; 12/07

For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

RESET

RESET

GND

1

2

8

7

CTL

SENSE

HYST

MR

DIP/SO

TOP VIEW

3

4

6

5

MAX700

RESET

RESET

GND

1

2

8

7

N.C.

N.C.

N.C.

MR

DIP/SO

3

4

6

5

MAX701

N.C.

N.C.

RESET

GND

1

2

8

7

N.C.

N.C.

MR

DIP/SO

3

4

6

5

MAX702

Pin Configurations

Ordering Information

PART*

TEMP RANGE

PIN-PACKAGE

MAX700C/D

0°C to +70°C

Dice

MAX700CPA

0°C to +70°C

8 PDIP

MAX700CSA

0°C to +70°C

8 Narrow SO

MAX700EPA

-40°C to +85°C

8 PDIP

MAX700ESA

-40°C to +85°C

8 Narrow SO

MAX701C/D

0°C to +70°C

Dice

MAX701CPA

0°C to +70°C

8 PDIP

MAX701CSA

0°C to +70°C

8 Narrow SO

MAX701EPA

-40°C to +85°C

8 PDIP

MAX701ESA

-40°C to +85°C

8 Narrow SO

MAX702C/D

0°C to +70°C

Dice

MAX702CPA

0°C to +70°C

8 PDIP

MAX702CSA

0°C to +70°C

8 Narrow SO

MAX702EPA

-40°C to +85°C

8 PDIP

MAX702ESA

-40°C to +85°C

8 Narrow SO

*

Devices in PDIP and SO packages are available in both lead-

ed and lead-free packaging. Specify lead free by adding the +

symbol at the end of the part number when ordering.