FEATURES
Precision VCC Power Supply Voltage Monitor — 5V, 3.3V and 3V systems — Five threshold voltage options Additional voltage monitoring — Externally adjustable down to 1.25V Watchdog timer (CAT1027 only) Active High or Low Reset — Valid reset guaranteed at VCC = 1V 400kHz I2C Bus 2.7V to 5.5V Operation Low power CMOS technology 16-Byte Page Write Buffer Built-in inadvertent write protection 1,000,000 Program/Erase cycles supply monitor and reset circuit protects memory and systems controllers during power up/down and against brownout conditions. If power supply voltages are out of tolerance reset signals become active preventing the system microcontroller, ASIC, or peripherals from operating. Reset outputs become inactive typically 200 ms after the supply voltage exceeds the reset threshold value. CAT1027 ¯¯¯¯¯¯ output. In addition, the RESET ¯¯¯¯¯¯ pin has only a RESET can be used as an input for push-button manual reset capability. The auxiliary high impeManual Reset capability dance comparator drives the open drain output, VLOW, 100 year data retention whenever the sense voltage is below 1.25V threshold.
Catalyst Semiconductor
