The DS1682 is an integrated elapsed time recorder that will provide the total amount of time that an event is/has been active since the DS1682 was last reset to zero via the 2-wire bus. When the total time accumulated is equal to the preset alarm trip point and the polarity bit is set to a zero, the Alarm# output will become active to alert the user, or with the polarity bit set to a one, the Alarm# output will become inactive when the values match. This is ideal for applications such as monitoring the total amount of time that something is turned on or in operation, how long something has been used, or the total number of uses since the last calibration or repair. 1 of 13