54177J/B

Overview

The 54177J/B is a binary counter integrated circuit manufactured by Rochester Electronics, LLC. It belongs to the SN54177 family, characterized for operation over the full military temperature range of -55°C to 125°C. The device functions as a synchronous four-bit binary counter with a clear input. It is designed for high-reliability applications requiring robust performance in extreme environmental conditions.

Feature Summary

• Synchronous four-bit binary counting capability
• Military-grade temperature characterization from -55°C to 125°C
• Includes asynchronous clear function

Applications

• Military aerospace electronic systems
• High-reliability industrial control equipment
• Harsh environment data processing units

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm datasheet revisions and specific lot traceability requirements. Ensure compliance with relevant military specifications and quality certifications such as AS9120 or MIL-PRF-38535 where applicable for your specific deployment environment.

Selection Notes

Select this component when military-grade temperature stability and long-term reliability are critical. It serves as a direct replacement for original SN54177 devices in legacy designs. Consider package compatibility and pinout alignment during integration into existing printed circuit board layouts.

Part Context

Rochester Electronics specializes in extending the lifecycle of obsolete and hard-to-find semiconductors. The 54177J/B represents their manufacturing of classic logic components using original intellectual property or recreated wafers. This ensures availability for defense and aerospace sectors dependent on discontinued parts.

Replacement Considerations

Direct equivalent replacements include the SN54177 series from original manufacturers. Verify pin compatibility and electrical characteristics against current design requirements before substitution.