LTC1726

V ^_CC3, V _CC5/V_CC25 , V _CCA.........................  0.3V to 7V
RST.............................................................  0.3V to 7V
WDI............................................................  0.3V to 7V
RT, WT .......................................................  0.3V to 7V

Operating Temperature Range (Note 3)...40 C to 85 C
Storage Temperature Range................. 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................  300 C

The LTC^(R) 1726  is a triple supply monitor and microproces-sor supervisory circuit with adjustable reset and watchdog  functions intended for systems with multiple supply volt- ages. The part has a common open-drain reset output with an adjustable delay. The reset and watchdog time-out periods are both adjustable using external capacitors.

Tight 1.5% accuracy specifications and glitch immunity ensure reliable reset operation without false triggering. The RST output is guaranteed to be in the correct state for V_CC5/V_CC25 or V_CC3 down to 1V. The LTC1726  may also be configured to monitor any one or two inputs instead V_CC of three, depending on system requirements. The low (16m A typical) supply current makes the LTC1726 ideal for power-conscious systems.