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MAX705ESA Arkusz danych(PDF) 1 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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MAX705ESA Arkusz danych(HTML) 1 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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1 / 10 page ![]() MAX705-MAX813L Low-Cost, µP Supervisory Circuit www.artschip.com 1 General Description The MAX705-MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX705/MAX706/MAX813L provide four functions: 1)A reset output during power-up, power-down, and brownout conditions. 2) An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds. 3)A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V. 4) An active-low manual-reset input. The MAX707/MAX708 are the same as the MAX705/MAX706, except an active-high reset is substituted for the watchdog timer. The MAX813L is the same as the MAX705, except RESET is provided instead of RESET. Two supply-voltage monitor levels are available: The MAX705/MAX707/MAX813L generate a reset pulse when the supply voltage drops below 4.65V, while the MAX706/MAX708 generate a reset pulse below 4.40V. All four parts are available in 8-pin DIP, SO and µMAX packages. Applications Computers Controllers Intelligent Istruments Automotive Systems Critical µP Power Monitoring Features µMAX Package: Smallest 8-Pin SO Guaranteed RESET Valid at Vcc=1V Precision Supply-Voltage Monitor 4.65V in MAX705/MAX707/MAX813L 4.40V in MAX706/MAX708 200ms Reset Pulse Width Debounced TTL/CMOS-Compatible Manual-Reset Input Independent Watchdog Timer – 1.6sec Timeout (MAX705/MAX706) Active-high Reset Output (MAX707/MAX708/MAX813L) Voltage Monitor for Power-Fail or Low-Battery Warning Typical Operating Circuit Pin Configurations TOP VIEW ()ARE FOR MAX813L ONLY. Pin Configurations continued at end of data sheet. |
Podobny numer części - MAX705ESA |
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