Applications:

• Frequency Dividers: Used to divide an input frequency by a factor of 2, 5, or 10.
• Digital Counters: Employed as decade counters in various digital counting applications.
• Timing Circuits: Utilized in timing circuits to generate specific time intervals.
• Clock Generators: Applied in clock generators to produce clock signals with specific frequencies.
• Event Counters: Used to count events in industrial automation and control systems.

Features:

• Decade Counter/Divider: Provides both a divide-by-2 and a divide-by-5 counter in a single package.
• Separate Divide-by-2 and Divide-by-5 Sections: Allows for independent or cascaded operation of the divide-by-2 and divide-by-5 sections.
• Reset Inputs: Features reset inputs to asynchronously clear the counter to a specific state.
• BCD Output: Provides a BCD (Binary Coded Decimal) output for easy interfacing with displays and other digital systems.
• Low Power Consumption: Consumes relatively low power compared to standard TTL devices.

Benefits:

• Versatile Counting and Dividing: Offers versatile counting and dividing capabilities for various applications.
• Flexible Configuration: Can be configured as a decade counter, a divide-by-2 counter, or a divide-by-5 counter.
• Simplified Circuit Design: Integrated functionality reduces component count and simplifies circuit design.
• Easy Interfacing: BCD output simplifies interfacing with displays and other digital systems.
• Reduced Power Consumption: Low power consumption makes it suitable for battery-powered and energy-sensitive applications.

The DM74LS290N is packaged in a 14-pin DIP package. It requires a supply voltage of 5V. The divide-by-2 section is triggered by a clock input (A input), and the divide-by-5 section is triggered by another clock input (B input). It includes separate reset inputs (R0(1) and R0(2)) to reset the counter to zero, and set inputs (R9(1) and R9(2)) to set the counter to nine. Refer to the manufacturer’s datasheet for detailed timing diagrams, pin configurations, and application guidelines.