Description
The ELM381 is a digitally configurable, multi stage counter circuit in a single 8 pin package. When
connected to a 60Hz source, four time periods from one hour to one week are possible, as shown in Table 1 below.

FEATUREs
• Low power CMOS design - typically 1mA at 5V
• Wide supply range – 3.0 to 5.5 volt operation
• Digitally selectable delays
• Schmitt trigger circuitry on the clock input
• Completely static operation
• Long term accuracy with line frequency clock
• High current drive outputs – up to 25 mA
• Reset input provided with a pullup resistor

APPLICATIONs
• Long term (daily or weekly) event timers
• Missing event detectors
• Automatic shutoff circuits