74AC169PC

Counter Dividers Overview

The Fairchild Semiconductor 74AC169PC is a synchronous, positive edge-triggered binary counter belonging to the AC series. It features a 4-bit bidirectional counting capability and utilizes CMOS technology within a 16-pin plastic dual in-line package (PDIP-16). The device supports load and preset inputs for flexible control. It operates reliably across an extended temperature range from -40°C to +85°C. The component exhibits a propagation delay of 16 ns and is designed for high-speed digital logic applications requiring precise timing and direction control.

Counter Dividers Feature Summary

• Synchronous operation triggered by positive clock edges
• Bidirectional counting functionality with up/down control
• Integrated load and preset input capabilities

Counter Dividers Applications

• Digital frequency division circuits
• Event counting systems
• Timing sequence generation modules

Counter Dividers Procurement Notes

Verify the specific manufacturer origin, as onsemi acquired Fairchild's logic business. Confirm the PDIP-16 package style matches design requirements. Ensure the AC series specifications align with system voltage and speed needs. Check RoHS compliance status for environmental regulations. Validate that the part number suffix indicates the correct pin configuration.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit bidirectional counter is required. The AC series offers improved speed over standard LS logic while maintaining low power consumption. Verify compatibility with existing clock signals and control lines. Consider the 16-pin DIP package for prototyping or through-hole assembly constraints. Ensure operating temperatures meet the application environment.

Counter Dividers Part Context

This component is part of the widely used 74AC logic family, known for high-speed performance. It serves as a fundamental building block for sequential logic designs. The 74AC169 variant specifically provides bidirectional counting, distinguishing it from unidirectional counters. It complements other AC series devices like decoders and flip-flops in complex digital systems.

Counter Dividers Replacement Considerations

The 74AC169SCXR is a surface-mount alternative with identical logical functions but in a SOIC-16 package. Designers must account for package footprint differences during replacement. Electrical characteristics remain consistent between the DIP and SOIC versions.