FEATURES
Precision Power Supply Voltage Monitor 5V, 3.3V, 3V & 2.5V systems 7 threshold voltage options Active High or Low Reset Valid reset guaranteed at VCC = 1 V Supports Standard and Fast I2C Protocol 16-Byte Page Write Buffer Low power CMOS technology 1,000,000 Program/Erase cycles 100 year data retention Industrial temperature range RoHS-compliant 8-pin SOIC package For Ordering Information details, see page 14. DESCRIPTION
A CMOS serial EEPROM memory and a system power supervisor with brown-out protection are integrated together. Memory interface is via both the standard (100kHz) as well as fast (400kHz) I2C protocol. The power supply monitor and reset circuit protect system controllers during power up/down and against brownout conditions. Seven reset threshold voltages support 5V, 3.3V, 3V and 2.5V systems. If power supply voltages are out of tolerance reset signals become active, preventing the system microcontroller, ASIC or peripherals from operating. Reset signals become inactive typically 240ms after the supply voltage exceeds the reset threshold level.
Catalyst Semiconductor
