HD74LS161AP (74LS161)

The HD74LS161AP, commonly known as 74LS161, is a synchronous 4-bit binary counter IC (Integrated Circuit). It is designed to count in binary from 0 to 15 and can be cascaded for higher counting applications. The IC operates using synchronous logic, where the outputs change state simultaneously with a clock signal.

Key Features:

• Binary Counter: Counts in binary from 0 to 15 (4-bit counter).
• Synchronous Operation: Outputs change simultaneously with the clock signal.
• Presettable: Can be preset to any initial value using the parallel load (PL) input.
• Cascadable: Multiple ICs can be cascaded for higher counting applications.
• Clock Enable Input: Allows disabling the clock input and the asynchronous reset function.
• Low Power Consumption: Suitable for battery-operated devices.
• Package Type: Available in various package options, including PDIP and SOP.

Applications:

• Frequency division and counting applications.
• Digital clocks and timers.
• Sequential logic circuits.
• Event counting in microcontroller systems.
• Education and learning projects.

Datasheet: For detailed technical information, refer to the HD74LS161AP (74LS161) datasheet.