uP Supervisor Circuits
Features
Precision supply-voltage monitor - 4.63V (PT7M78xxL) - 4.38V (PT7M78xxM) - 3.08V (PT7M78xxT) - 2.93V (PT7M78x...
Description
Features
Precision supply-voltage monitor - 4.63V (PT7M78xxL) - 4.38V (PT7M78xxM) - 3.08V (PT7M78xxT) - 2.93V (PT7M78xxS) - 2.63V (PT7M78xxR) - 2.32V (PT7M78xxZ) - 2.20V (PT7M78xxY) - 4.00V (PT7M78xxJ) - 2.25V (PT7M78xxK) - 2.80V (PT7M78xxG)
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
PT7M7803/7809-7812/7823-7825
μP Supervisor Circuits
Description
The PT7M78xx family microprocessor (P) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in P 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, powerdown and brownout conditions for P system.
2. Watchdog functions
3. Manual reset.
Applications
Power-supply circuitry in P systems Networking Security System Server/Storage Embedded System
Function Comparison Table
Part No.
1 PT7M7803 2 PT7M7809 3 PT7M7810 4 PT7M7811 5 PT7M7812 6 PT7M7823 7 PT7M7824 8 PT7M7825
RESET output
Push-Pull
Open-Drain
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RESET output (push-pull)
Manual Reset Input
Watchdog Input
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All trademar...
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