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Microprocessor Supervisory Circuit with Watchdog Timer and Manual Reset for Automotive Applications.
SGM823XQ SGM823XQ.pdf

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FEATURES

? AEC-Q100 Qualified for Automotive Applications

  Device Temperature Grade 1

  TA = -40℃ to +125℃

? Ultra-Low Supply Current: 0.64μA (TYP)

? Precision Supply-Voltage Monitor

   4.66V for SGM823-LQ

   3.10V for SGM823-TQ

   2.95V for SGM823-SQ

   2.64V for SGM823-RQ

? Guaranteed nRESET Valid at VCC = 1V

? Push-Pull nRESET Output

? Reset Pulse Width: 200ms (TYP)

? Debounced TTL/CMOS-Compatible

? Manual Reset Input

? 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


DESCRIPTION

The SGM823xQ is a complete microprocessor supervisory device which combines reset, watchdog and manual reset 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 SGM823xQ 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 logic low on the manual reset input (nMR), 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 1V. The SGM823xQ is offered in four fixed VCC reset threshold voltages.
The device is AEC-Q100 qualified (Automotive Electronics Council (AEC) standard Q100 Grade 1) and it is suitable for automotive applications.
The SGM823xQ is available in a Green SOT-23-5 package. It operates over an ambient temperature range of -40to +125.

APPLICATION CIRCUIT
PIN CONFIGUTION
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