The LTC1326CS8#PBF is a micropower precision Triple Supply Monitor intended for systems with multiple supply voltages. It provides micropower operation, small size and high accuracy supply monitoring. Tight 0.75% threshold accuracy and glitch immunity ensure reliable reset operation without false triggering. The 20μA typical supply current makes the LTC1326 ideal for power-conscious systems. The RST output is guaranteed to be in the correct state for VCC3, VCC5 or VCC25 down to 1V. It can be configured to monitor one, two or three inputs, depending on system requirements. A manual pushbutton reset input provides the ability to generate a very narrow soft reset pulse (100μs typical) or a 200ms reset pulse equivalent to a power-on reset. Both SRST and RST outputs are open-drain and can be OR-tied with other reset sources.