The SN74LS161ANSR is an advanced integrated circuit (IC) manufactured by Texas Instruments, a leading company in the global semiconductor industry.

• Device Type: High-performance 4-bit binary counter
• Series: SN74LS
• Features: Synchronous internal carry look-ahead for high-speed counting
• Programmability: Fully programmable for wide range of counting modes
• Clear Function: Overrides the count and parallel inputs
• Inputs: Count-enable input, terminal count, and ripple clock output for easy cascading
• Reset: Asynchronous reset that sets all four flip-flop outputs low
• Recommended VCC Range: 4.75 to 5.25 volts
• Operating Temperature Range: -40°C to 85°C
• Package: Compact, surface-mount
• Compliance: RoHS compliant