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SGM824

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Microprocessor Supervisory Circuit with Watchdog Timer

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The SGM824 is a complete microprocessor supervisory device which combines reset and watchdog functions in a SOT-23-5 package. System reliability is significantly improved by such integration compared to the designs with individual ICs or discrete components. The SGM824 also features an excellent transient immunity to ignore fast VCC transients.

This device has an active-low push-pull reset output (nRESET) that is activated by a watchdog expiry event or due to a low VCC voltage. The nRESET output can still be in the correct logic state even if VCC is lower than 1V. The SGM824 is offered in four fixed VCC reset threshold voltages.

The SGM824 is available in a Green SOT-23-5 package. It operates over an ambient temperature range of -40 to +125.

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FEATURES
  • Ultra-Low Supply Current: < 1μA (TYP)

  • Precision Supply-Voltage Monitor

    4.63V for SGM824-L

    3.08V for SGM824-T

    2.93V for SGM824-S

    2.63V for SGM824-R

  • Guaranteed Reset Valid at VCC = 1V

  • Two Reset Output Options

    Push-Pull nRESET

    Push-Pull RESET

  • Reset Pulse Width: 200ms (TYP)

  • Debounced TTL/CMOS-Compatible

  • Watchdog Timer with 1.6s (TYP) Timeout

  • Fully Specified over Temperature

  • Power-Supply Transient Immunity

  • Without External Components

  • -40 to +125 Operating Temperature Range

  • Available in a Green SOT-23-5 Package

APPLICATIONS

Computers

Portable Equipment

Automotive Equipment

Intelligent Instruments

Critical μP Power Monitoring

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM824-LXN5G/TR
Active
SOT-23-5
5
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $0.84/unit
25-99 units : $0.72/unit
100-249 units : $0.6/unit
250-499 units : $0.48/unit
500-999 units : $0.42/unit
1000-9999 units : $0.312/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days
SGM824-RXN5G/TR
Active
SOT-23-5
5
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $0.84/unit
25-99 units : $0.72/unit
100-249 units : $0.6/unit
250-499 units : $0.48/unit
500-999 units : $0.42/unit
1000-9999 units : $0.312/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days
SGM824-SXN5G/TR
Active
SOT-23-5
5
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $0.84/unit
25-99 units : $0.72/unit
100-249 units : $0.6/unit
250-499 units : $0.48/unit
500-999 units : $0.42/unit
1000-9999 units : $0.312/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days
SGM824-TXN5G/TR
Active
SOT-23-5
5
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $0.84/unit
25-99 units : $0.72/unit
100-249 units : $0.6/unit
250-499 units : $0.48/unit
500-999 units : $0.42/unit
1000-9999 units : $0.312/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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