MAX823TEUK+ Maxim Integrated Products, MAX823TEUK+ Datasheet
MAX823TEUK+
Manufacturer Part Number
MAX823TEUK+
Description
MAX823TEUK+
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX823TEUK.pdf
(10 pages)
Specifications of MAX823TEUK+
Pack_quantity
1
Comm_code
85423190
Lead_time
175
________________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 4; 7/01
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.
*Patents Pending
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
M
S
R
L
T
MR
1
2
3
________________________________________________________________ Maxim Integrated Products
SOT23/SC70
Reset Threshold Table
MAX823
CC
down to 1V. The MAX823
5
4
Watchdog Timer and Manual Reset
V
WDI
CC
THRESHOLD (V)
RESET
4.63
4.38
3.08
2.93
2.63
2.32
2.19
CC
.
RESET
RESET
GND
1
2
3
SOT23/SC70
MAX824
Ordering Information continued at end of data sheet.
o Precision Monitoring of +2.5V, +3V, +3.3V, and
o Operating Current: 6µA (MAX823L/M) (SC70)
o Fully Specified Over Temperature
o 140ms min Power-On Reset
o Guaranteed RESET Valid to V
o Power-Supply Transient Immunity
o Watchdog Timer with 1.6s Timeout
o Manual Reset Input (MAX823/MAX825)
o No External Components
†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.
______________________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)
5
4
FUNCTION
PART †
V
WDI
CC
-40°C to +85°C
-40°C to +125°C
-40°C to +85°C
RESET
RESET
TEMP. RANGE
GND
Ordering Information
2µA (MAX825T/S/R/Z/Y) (SC70)
MAX823
1
2
3
Pin Configurations
—
✔
✔
✔
SOT23/SC70
MAX825
CC
MAX824
= 1V
—
✔
✔
✔
PIN-PACKAGE
5 SC70-5
5 SOT23-5
5 SC70-5
5
4
Features
V
MR
CC
MAX825
—
✔
✔
✔
1
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