PT7A7523 Datasheet | Pericom Semiconductor

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 systems PT7A7511P-7515P Pin Conf Pi Tg7u Ar7a51ti1o Wn-7515W 8-Pin PDIP/8-Pin SOIC PT7A7521P-7525P PT7A7521W-7525W 8-Pin PDIP/8-Pin SOIC PT7A7531P-7535P PT7A7531W-7535W 8-Pin PDIP/8-Pin SOIC MR V CC GND PFI 1 2 3 4 8 WDO MR 1 7 RESET V CC 2 6 WDI GND 3 5...