CD74HCT161M

Counter Dividers Overview

The CD74HCT161M is a synchronous 4-bit binary counter belonging to the HCT series of high-speed CMOS logic devices. Manufactured by Harris Corporation, this component operates in an up-counting direction and features positive edge triggering for precise timing control. It is housed in a PDSO16 plastic surface-mount package with 16 terminals. The device supports a load/preset input function and includes a TCO (Terminal Count Output) feature. It is designed for operation within a temperature range of -55 °C to 125 °C.

Counter Dividers Feature Summary

• Synchronous 4-bit binary counting architecture with positive edge triggering
• Up-counting direction capability with dedicated preset and load inputs
• High-speed CMOS technology optimized for HCT logic compatibility
• Integrated Terminal Count Output (TCO) for cascading applications

Counter Dividers Applications

• Digital frequency division circuits
• Sequential pulse generation systems
• Time-delay circuit implementations

Counter Dividers Procurement Notes

Verify the manufacturer designation as Harris Corporation during sourcing. Confirm the specific suffix 'M' corresponds to the PDSO16 package type. Ensure compliance with the specified operating temperature range of -55 °C to 125 °C for your intended environment. Check RoHS status documentation as indicated in related datasheets.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit counter with HCT logic interface levels is required. The PDSO16 package is suitable for surface-mount assembly processes. Consider the maximum operating frequency specifications relative to your system clock speed. Verify that the asynchronous reset or preset requirements align with the specific variant's pinout configuration.

Counter Dividers Part Context

This part belongs to the broader CD74HCT161 family of binary counters. Variants such as the CD74HCT161E utilize different packaging like PDIP. The HCT series ensures compatibility with standard TTL logic levels while maintaining CMOS power efficiency. The M suffix specifically denotes the small-outline package format used in compact electronic designs.

Counter Dividers Replacement Considerations

Cross-reference with CD74HC161M for HC series equivalents. Verify pin compatibility with other HCT-series counters from different manufacturers.