MC74HC161ADG

Counter Dividers Overview

The MC74HC161ADG is a high-performance silicon-gate CMOS device from the onsemi 74HC logic family. It functions as a synchronous 4-bit binary counter with parallel data inputs and asynchronous reset capability. The component operates within a voltage range of 2.0 V to 6.0 V, ensuring compatibility with standard CMOS outputs and LSTTL outputs when pull-up resistors are utilized. Packaged in a 16-lead SOIC surface-mount format, it features low input current characteristics and high noise immunity, making it suitable for various digital counting applications requiring reliable performance.

Counter Dividers Feature Summary

• Synchronous 4-bit binary counting functionality with parallel load capability
• Asynchronous reset mechanism for immediate clearing of count states
• High noise immunity and low input current typical of CMOS technology
• Direct interface compatibility with CMOS, NMOS, and TTL output loads

Counter Dividers Applications

• Digital frequency division circuits
• Time-base generation in timing systems
• Event counting in industrial control interfaces
• Address decoding in memory systems

Counter Dividers Procurement Notes

Verify the specific suffix 'DG' confirms the SOIC-16 package type and lead-free compliance status against the manufacturer's latest datasheet revision. Confirm RoHS material composition requirements if applicable to your assembly process. Ensure the operating voltage range aligns with your system's power supply specifications before finalizing procurement orders.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit counter with an asynchronous reset is required. It serves as a direct pin-compatible replacement for legacy LS161 devices in designs needing CMOS compatibility. Consider the 2.0 V to 6.0 V operating range to ensure signal integrity across your target voltage domain. Verify that the SOIC-16 package fits your PCB footprint constraints.

Counter Dividers Part Context

This part belongs to the MC74HC161A series of presettable counters manufactured by onsemi. It shares identical pinout configurations with the LS161 variant, facilitating easy upgrades or replacements in existing designs. The device is part of the broader 74HC logic family, known for high-speed operation and wide voltage flexibility compared to older logic standards.

Counter Dividers Replacement Considerations

The MC74HC161AD is a verified equivalent part number offering identical functionality in a different package variant. Designers may also consider the MC74HC163ADG if a synchronous reset feature is preferred over asynchronous reset. Always verify pinout compatibility and electrical specifications before substituting.