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MAX6820UT-T, MAX6821EUK, MAX6821MUK-T

Table of contents:
Info of MAX6820UT-T
Info of MAX6821EUK
Info of MAX6821MUK-T

MAX6820UT-T, MAX6821EUK, MAX6821MUK-T Selling Leads, Datasheet

MFG:MAXIM Package Cooled:SOT D/C:06+

MAX6820UT-T, MAX6821EUK, MAX6821MUK-T Picture

MAX6820UT-T, MAX6821EUK, MAX6821MUK-T Datasheet download

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Part Number: MAX6820UT-T

MFG: MAXIM

Package Cooled: SOT

D/C: 06+

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MAX6821MUK-T General Description

The MAX6821(R)CMAX6825 are low-voltage microprocessor (P) supervisory circuits that combine voltage monitor-ing, watchdog timer, and manual reset input functions in a 5-pin SOT23 package. Microprocessor supervisory cir- cuits significantly improve system reliability and accura- cy compared to separate ICs or discrete components. These devices assert a reset signal whenever the moni- tored voltage drops below its preset threshold, keeping it asserted for a minimum timeout period after Vcc rises above the threshold. In addition, a watchdog timer moni- tors against code execution errors. A debounced manual reset is also available. The MAX6821(R)CMAX6825 monito voltages from +1.8V to +5.0V. These outputs are guaran- teed to be in the correct state for Vcc down to +1.0V.

Nine preprogrammed reset threshold voltages are available (see Threshold Suffix Guide). The MAX6821, MAX6822, and MAX6823 all have a manual reset input and a watchdog timer. The MAX6821 has push-pull RESET, the MAX6822 has open-drain RESET and the MAX6823 has push-pull RESET. The MAX6824 has a watchdog timer and both push-pull RESET and push- pull RESET. The MAX6825 has a manual reset input and both push-pull RESET and push-pull RESET. The Selector Guide explains the functions offered in this series of parts.

MAX6821MUK-T Maximum Ratings

Vcc to GND.................................................................-0.3V to +6.0V
Open-Drain RESET.....................................................-0.3V to +6.0V
Push-Pull RESET, RESET, MR, WDI.....................-0.3V to (Vcc+ 0.3V)
Input Current (Vcc).................................................................20mA
Output Current (RESET, RESET)..............................................20mA
Continuous Power Dissipation (T_A= +70)
5-Pin SOT23 (derate 7.1mW/°C above +70)...................571mW
Operating Temperature Range.............................-40°C to +125
Junction Temperature...........................................................+150
Storage Temperature Range................................-65°C to +150
Lead Temperature (soldering, 10s)......................................+300
Stresses beyond those listed under °Absolute Maximum Ratings°± may cause permanent damage to the device. These are stress ratis only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

MAX6821MUK-T Features

·Monitors +1.8V, +2.5V, +3.0V, +3.3V, +5.0V Supplies
·140ms (min) Reset Timeout Delay
·1.6s Watchdog Timeout Period (MAX6821/MAX6822/MAX6823/MAX6824)
·Manual Reset Input (MAX6821/MAX6822/MAX6823/MAX6825)
·Three Reset Output Options
Push-Pull RESET
Push-Pull RESET
Open-Drain RESET
·Guaranteed Reset Valid to Vcc= +1.0V
·Immune to Short Negative Vcc Transients
·No External Components
·Small 5-Pin SOT23 Packages

MAX6821MUK-T Typical Application

·Set-Top Boxes
·Computers and
·Controllers
·Embedded Controllers
·Intelligent Instruments
·Automotive Systems
·Critical |ìP Monitorin
·Portable/Battery-
·Powered Equipment

MAX6821MUK-T Connection Diagram

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