SN74LS161ANS

Counter Dividers Overview

The SN74LS161ANS is a synchronous 4-bit binary counter manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a maximum counting rate of 25 MHz. The device features positive-edge-triggered flip-flops, asynchronous reset, and synchronous parallel load capabilities. It is housed in a 16-SOIC package with a width of 5.30 mm and functions reliably across an operating temperature range of 0°C to 70°C.

Counter Dividers Feature Summary

• Synchronous four-bit binary counting architecture
• Asynchronous master reset functionality
• Synchronous parallel data loading capability
• Diode-clamped input protection

Counter Dividers Applications

• Digital frequency division circuits
• Pulse generation systems
• Timing control logic
• General-purpose digital counters

Counter Dividers Procurement Notes

Verify the specific suffix 'ANS' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure the selected variant matches the required package type and voltage specifications for the target application design.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit binary counter with parallel load and asynchronous reset is required. Consider the 25 MHz speed limit and 5V operation constraints. Verify that the SOIC package fits the PCB layout requirements compared to DIP alternatives.

Counter Dividers Part Context

This part belongs to the Texas Instruments 74LS series of logic integrated circuits. It is functionally compatible with other manufacturers' 74LS161 devices. The 'ANS' suffix typically denotes a specific tape-and-reel packaging option for surface-mount assembly.

Counter Dividers Replacement Considerations

Direct substitutes include SN74LS161AN (DIP) and SN74LS161AD (SOIC). Other compatible variants are SN74LS161ANSR and SN74LS161ADE4.