ELM381 Overview
The ELM381 is a digitally configurable, multistage 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. Although the circuit has been optimized for a 60Hz input frequency, it is capable of being operated over a very wide range of frequencies.
ELM381 Key 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
- pletely static operation
- Long term accuracy with line frequency clock
- High current drive outputs
- up to 25 mA