MAX823REUK Maxim Integrated Products, MAX823REUK Datasheet

MAX823REUK

Manufacturer Part Number

MAX823REUK

Description

Manufacturer

Maxim Integrated Products

Datasheets

1.MAX824REUK.pdf (10 pages)

2.MAX823MEUK.pdf (8 pages)

3.MAX823REUK.pdf (8 pages)

Specifications of MAX823REUK

Case

SOT-23

Date_code

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________________General Description

The MAX823/MAX824/MAX825* microprocessor (µP)

supervisory circuits combine reset output, watchdog,

and manual reset input functions in 5-pin SOT23 and

SC70 packages. They significantly improve system relia-

bility and accuracy compared to separate ICs or discrete

components. The MAX823/MAX824/MAX825 are specifi-

cally designed to ignore fast transients on V

Seven preprogrammed reset threshold voltages are

available (see Reset Threshold Table). All three devices

have an active-low reset output, which is guaranteed to

be in the correct state for V

also offers a watchdog input and manual reset input.

The MAX824 offers a watchdog input and a comple-

mentary active-high reset. The MAX825 offers a manual

reset input and a complementary active-high reset. The

Selector Guide explains the functions offered in this

series of parts.

________________________Applications

19-0487; Rev 5; 12/05

*Patents Pending

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

TOP VIEW

5-Pin Microprocessor Supervisory Circuits With

Computers and Controllers

Embedded Controllers

Intelligent Instruments

Automotive Systems

Critical µP Monitoring

Portable/Battery-Powered Equipment

Z (SC70 only)

Y (SC70 only)

SUFFIX

RESET

GND

________________________________________________________________ Maxim Integrated Products

SOT23/SC70

Reset Threshold Table

MAX823

down to 1V. The MAX823

Watchdog Timer and Manual Reset

WDI

THRESHOLD (V)

RESET

4.63

4.38

3.08

2.93

2.63

2.32

2.19

RESET

GND

SOT23/SC70

MAX824

†Insert the desired suffix letter (from the Reset Threshold table) into

the blank to complete the part number. All devices are available in

tape-and-reel only. There is a 2500 piece minimum order increment.

Devices are available in both leaded and lead-free packaging.

Specify lead-free by replacing “-T” with “+T” when ordering.

Ordering Information continued at end of data sheet.

♦ Precision Monitoring of +2.5V, +3V, +3.3V, and

♦ Operating Current: 6µA (MAX823L/M) (SC70)

♦ Fully Specified Over Temperature

♦ 140ms min Power-On Reset

♦ Guaranteed RESET Valid to V

♦ Power-Supply Transient Immunity

♦ Watchdog Timer with 1.6s Timeout

♦ Manual Reset Input (MAX823/MAX825)

♦ No External Components

______________________Selector Guide

Typical Operating Circuit appears at end of data sheet.

Marking Information appears at end of data sheet.

MAX823_EXK-T

MAX823_EUK-T

MAX824_EXK-T

Active-Low Reset

Active-High Reset

Watchdog Input

Manual Reset Input

+5V Power Supplies

(MAX823/MAX824)

PART †

FUNCTION

WDI

-40°C to +85°C

-40°C to +125°C

-40°C to +85°C

RESET

TEMP. RANGE

GND

Ordering Information

2µA (MAX825T/S/R/Z/Y) (SC70)

MAX823

Pin Configurations

SOT23/SC70

—

✔

MAX825

MAX824

= 1V

—

PIN-PACKAGE

5 SC70-5

5 SOT23-5

5 SC70-5

✔

Features

MAX825

—

✔

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