ELM Electronics ELM382
The ELM382 is a digitally configurable, multistage counter circuit in a single 8 pin package. When connected to a 50Hz source, four time periods from one hour to one week are possible, as shown in Table 1 below. The ELM382 provides two outputs – a standard 50% duty cycle divider output, and a momentarily pulsed output.| Part No. | ELM382 |
|---|---|
| Datasheet | ELM382 Download |
| Manufacturer |  ELM Electronics |
| Description | 50Hz Long Interval Counter |
| Buy | Stock & Price |
DESCRIPTION
Although the circuit has been optimized for a 50Hz input frequency, it is capable of being operated over a very wide range of frequencies. Of particular interest is the ability to interface directly to very low frequencies with varying waveforms due to the use of a Schmitt trigger input circuit. The pulse output is useful for audibly or visually signalling the beginning of a time period, or as a trigger for other circuitry. Refer to the ExampleAPPLICATIONS
section for two typical circuits.APPLICATIONS
● Long term (daily or weekly) event timers● Missing event detectors
● Automatic shutoff circuits
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 Connection Diagram PDIP and SOIC (t...
