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PT7M7823S Datasheet(PDF) 1 Page - Pericom Semiconductor Corporation |
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PT7M7823S Datasheet(HTML) 1 Page - Pericom Semiconductor Corporation |
1 / 12 page ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| µP Supervisor Circuits PT0109S-15 10/14/10 1 PT7M7803/7809-7812/7823-7825 Features Precision supply-voltage monitor - 4.63V (PT7M78xxL) - 4.38V (PT7M78xxM except PT7M7803/09/10M) - 3.08V (PT7M78xxT) - 2.93V (PT7M78xxS) - 2.63V (PT7M78xxR) - 2.32V (PT7M78xxZ) - 2.20V (PT7M78xxY) - 4.00V (PT7M78xxJ) - 4.26V (PT7M7803/09/10M) - 2.25V (PT7M7823/24K) 200ms reset pulse width Debounced CMOS-compatible manual-reset input (7811, 7812, 7823, 7825) Reset Output Signal for Watchdog and Power Abnormal, Manual Reset Reset Push-Pull output (PT7M7809,7811,7823, 7824,7825) Reset Open-Drain output (PT7M7803) Voltage monitor for power-fail or low battery warning Guaranteed RESET/RESET valid at VCC=1.0V Description The PT7M78xx family microprocessor ( µP) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in µP systems. These devices reduce the complexity and number of components required to monitor power-supply and battery functions. The main functions are: 1. Asserting reset output during power-up, power-down and brownout conditions for µP system. 2. Detecting power failure or low-battery conditions with a 1.25V threshold detector. 3. Watchdog functions 4. Manual reset. Applications • Power-supply circuitry in µP systems Monitored Voltage Table X L M 1) T S R Z Y J K 2) Reset Threshold (V) 4.63 4.38 3.08 2.93 2.63 2.32 2.20 4.00 2.25 Note1): Threshold voltage=4.38V can be applied to all parts except PT7M7803/09/10M. PT7M7803/09/10M’s threshold voltage is 4.26V. 2): Threshold voltage=2.25V only for PT7M7823/24K. Function Comparison RESET output Part No. Push-Pull Open-Drain RESET output (push-pull) Manual Reset Input Power Fail Detector (1.25V) Watchdog Input 1 PT7M7803 - √ - - - - 2 PT7M7809 √ - - - - - 3 PT7M7810 - - √ - - - 4 PT7M7811 √ - - √ - - 5 PT7M7812 - - √ √ - - 6 PT7M7823 √ - - √ - √ 7 PT7M7824 √ - √ - - √ 8 PT7M7825 √ - √ √ - - 11-0012 |
Similar Part No. - PT7M7823S |
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Similar Description - PT7M7823S |
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