SN54LS668J

Counter Dividers Overview

The SN54LS668J is a synchronous 4-bit up/down counter manufactured by Texas Instruments. It features fully synchronous operation for counting and programming, along with internal look-ahead logic to enable fast counting speeds. The device supports both binary and decade counting modes. It is housed in a 20-CDIP package and operates within an extended temperature range of -55°C to 125°C.

Counter Dividers Feature Summary

• Fully synchronous operation ensures reliable counting and programming without ripple delays.
• Internal look-ahead architecture provides high-speed performance for complex timing applications.
• Supports programmable binary and decade counting modes for versatile digital design.

Counter Dividers Applications

• Synchronous digital counters
• Programmable timing circuits
• High-speed data processing systems

Counter Dividers Procurement Notes

Verify the specific suffix 'J' indicates the ceramic DIP package variant when sourcing. Confirm the manufacturer is Texas Instruments to ensure compatibility with military-grade specifications. Check for RoHS compliance status if required by your assembly process. Ensure the component matches the 20-pin CDIP form factor for your PCB layout.

Counter Dividers Selection Notes

Select this component for applications requiring synchronous 4-bit counting with high-speed internal look-ahead capabilities. It is suitable for environments demanding extended temperature stability from -55°C to 125°C. Consider the ceramic package for ruggedness compared to plastic variants. Verify that binary or decade mode requirements align with the device's programmability.

Counter Dividers Part Context

This part belongs to the SN54LS series of logic integrated circuits, designed for military-grade reliability. The SN54LS668 specifically addresses needs for synchronous counting with reduced propagation delay through internal look-ahead mechanisms. It serves as a robust solution for aerospace and industrial control systems where performance under extreme conditions is critical.

Counter Dividers Replacement Considerations

Check for direct substitutes within the SN54LS family that offer identical pinouts and functionality. Verify that any alternative maintains the same synchronous operation and look-ahead features. Ensure the replacement supports the required -55°C to 125°C operating temperature range and compatible packaging.