The SN74LS161AN is a high-performance integrated circuit (IC) developed by Texas Instruments, a globally recognized leader in semiconductor solutions.

• Device Type: 4-bit synchronous binary counter
• Series: SN74LS
• Function: Counts from zero to fifteen in binary format
• Features: Internal carry look-ahead for high-speed counting
• Operating Voltage: 5V
• Inputs: Four negative-edge-triggered clock inputs and four synchronous parallel inputs (P0, P1, P2, and P3)
• Control: Clock, clear, and load controlled by the rising edge of the clock pulse
• Direct Clear Input: Enables instantaneous reset to zero
• Package: 16-pin DIP (Dual In-line Package)
• Applications: Frequency division, digital clocks, and time measurement devices
• Operating Temperature Range: Wide range for consistent performance