74HC161D,653

Counter Dividers Overview

The Nexperia 74HC161D,653 is a synchronous presettable 4-bit binary counter with an asynchronous reset and internal look-ahead carry. It operates on a positive-going clock edge and supports parallel data loading via the PE input. The device features two count enable inputs (CEP and CET) for cascading and provides a terminal count output (TC). It functions within a supply voltage range of 2.0 V to 6.0 V and is available in a 16-lead SO plastic small outline package (SOT109-1).

Counter Dividers Feature Summary

• Synchronous counting and parallel loading triggered by positive clock edges.
• Asynchronous master reset function that clears outputs regardless of clock state.
• Internal look-ahead carry simplifies serial cascading of multiple counters.
• High noise immunity and low power dissipation characteristics.

Counter Dividers Applications

• Digital frequency division circuits
• Time-base generators
• Event counting systems

Counter Dividers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature rating. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications. Ensure the selected component aligns with JEDEC standards for the intended operating environment.

Counter Dividers Selection Notes

Select this component when a 4-bit synchronous counter with parallel load capability is required. Consider the asynchronous reset feature for immediate system initialization needs. Evaluate the wide supply voltage range for compatibility with various logic levels. Check propagation delay specifications against maximum clock frequency requirements.

Counter Dividers Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Nexperia. It is functionally compatible with other industry-standard 4-bit binary counters but offers specific integration of look-ahead carry for efficient multi-stage designs. The device represents a standard solution for general-purpose digital counting applications.

Counter Dividers Replacement Considerations

Check for equivalent parts from other manufacturers offering identical pinouts and electrical characteristics. Verify functional compatibility regarding synchronous vs. asynchronous reset behaviors. Ensure package dimensions match existing PCB footprints if direct replacement is necessary.