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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

© 2005 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products, Inc.

Full-Featured µP Supervisory Circuit with

±1.5% Reset Accuracy

MAX807

RESET

RESET

RESET

+12V SUPPLY FAILURE

BATT OK

PFO

WDO

LOW LINE

WDI

CE IN

CE OUT

+5V

+12V

SUPPLY

OUT

BATT

REAL-

TIME

CLOCK

*MaxCap.

MR

OTHER

SYSTEM

RESET

SOURCES

BATT ON

ADDRESS

DECODE

0.1

µF

0.1

µF

0.47F*

PFI

GND

µP

PUSH-

BUTTON

SWITCH

CMOS

RAM

A0–A15

I/O

NMI

RESET

INTERRUPT

WATCHDOG FAILURE

Typical Operating Circuit

___________________Chip Information

4.425

4.50

4.35

M

4.675

4.575

4.65

TYP

4.75

RESET THRESHOLD (V)

4.60

4.50

MAX

MIN

N

L

SUFFIX

16 Plastic DIP

-40°C to +85°C

MAX807_EPE

16 Wide SO

0°C to +70°C

MAX807_CWE

16 CERDIP

16 Wide SO

16 Plastic DIP

PIN-PACKAGE

TEMP RANGE

0°C to +70°C

-40°C to +85°C

-55°C to +125°C

MAX807_MJE

MAX807_EWE

MAX807_CPE

PART

†

TRANSISTOR COUNT: 984

Ordering Information

† This part offers a choice of reset threshold voltage. From the

table below, select the suffix corresponding to the desired

threshold and insert it into the blank to complete the part number.

Devices in PDIP, SO and TSSOP packages are available in

both leaded and lead-free packaging. Specify lead free by

adding the + symbol at the end of the part number when

ordering. Lead free not available for CERDIP package.

16 TSSOP

0°C to +70°C

MAX807_CUE

16 TSSOP

-40°C to +85°C

MAX807_EUE