PT7A7523
PT7A7523 is uP Supervisor Circuits manufactured by Pericom Semiconductor.
- Part of the PT7A7515 comparator family.
- Part of the PT7A7515 comparator family.
PT7A7511-15/7521-25/7531-35
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μP Supervisor Circuits
Features
- Precision supply-voltage monitor
- 4.63V (PT7A7511, 7521, 7531)
- 4.38V (PT7A7512, 7522, 7532)
- 3.08V (PT7A7513, 7523, 7533)
- 2.93V (PT7A7514, 7524, 7534)
- 2.63V (PT7A7515, 7525, 7535)
- 200ms reset pulse width
- Debounced TTL/CMOS-patible manual- reset input
- Independent watchdog timer 1.6sec time-out (not available for PT7A7531
- 7535)
- Reset output signal:
- Active-low only (PT7A7511
- 7515)
- Active-high only (PT7A7521
- 7525)
- Active-high and active-low (PT7A7531
- 7535)
- Voltage monitor for power-fail or low battery warning
- Guaranteed RESET/RESET valid at VCC=1.2V
Description
The PT7A751X/752X/753X family microprocessor (P) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in P’s systems. These devices reduce the plexity and number of ponents 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 P system.
2. Detecting power failure or low-battery conditions with a 1.25V threshold detector.
3. Watchdog functions (not for PT7A753x)
Applications
- Power-supply circuitry in P...