DM74LS169AN

Counter Dividers Overview

The DM74LS169AN is a synchronous presettable binary counter manufactured by Fairchild Semiconductor. It features a 4-bit counting capacity with up/down direction control and an internal carry look-ahead mechanism for high-speed cascading applications. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a maximum counting rate of 25 MHz. It is housed in a 16-pin Dual In-line Package (PDIP) suitable for through-hole mounting, with an operating temperature range extending from 0°C to 70°C.

Counter Dividers Feature Summary

• Synchronous presettable architecture with internal carry look-ahead for efficient cascading
• Bidirectional counting capability controlled by up/down input signals
• High-speed operation supporting counting rates up to 25 MHz

Counter Dividers Applications

• High-speed synchronous counting circuits
• Digital timing and frequency division systems
• Cascaded multi-stage counter configurations

Counter Dividers Procurement Notes

Verify the specific package variant, as the 'AN' suffix typically denotes a 16-pin PDIP configuration. Confirm RoHS compliance status and lead-free characteristics against current manufacturer specifications. Ensure the source document explicitly identifies the component as a synchronous binary counter to avoid confusion with asynchronous variants or different logic families.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit counter with bidirectional control and internal carry lookahead is required. It is suitable for designs needing high-speed performance up to 25 MHz. Consider the 16-pin DIP package for prototyping or legacy board layouts requiring through-hole technology compatibility.

Counter Dividers Part Context

This part belongs to the standard 74LS logic family, known for low-power Schottky characteristics. It serves as a fundamental building block for digital sequential logic, providing reliable binary counting functions in microprocessor interfaces and digital control systems where precise timing and synchronization are critical.

Counter Dividers Replacement Considerations

Check for direct equivalents such as the DM74LS169AM for surface-mount requirements. Verify pinout compatibility with other 74LS169 variants before substitution.