SNJ54S241J

Overview

The SNJ54S241J is an octal buffer and line driver manufactured by Texas Instruments, belonging to the S/FAST logic series. It features two independent four-bit drivers with true outputs and three-state capabilities. The device utilizes a 20-pin ceramic dual in-line package (CDIP) designed for military-grade reliability. It operates within an extended temperature range of -55°C to 125°C. Key electrical characteristics include a maximum propagation delay of 13 ns at 5 V and a load capacitance rating of 50 pF. The component supports unidirectional data flow with complementary output enable controls.

Feature Summary

• Provides high-speed signal buffering and driving for bus-oriented applications
• Features three-state outputs to facilitate direct connection to system buses
• Incorporates PNP inputs to reduce DC loading on preceding stages
• Includes input hysteresis to improve noise margins in noisy environments

Applications

• Three-state memory address drivers
• Clock drivers for high-speed systems
• Bus-oriented receivers and transmitters
• Terminated line driving for network infrastructure

Procurement Notes

Verify the specific datasheet revision and manufacturing date code when sourcing this component. Confirm that the ceramic package integrity meets MIL-STD requirements for your application environment. Ensure compatibility with existing board layouts for the 20-CDIP footprint. Check for any lead-free or RoHS compliance variations if required by your regulatory standards. Validate supply chain authenticity through authorized distributors.

Selection Notes

Select this component when high-speed switching and robust noise immunity are critical for military or aerospace systems. The S/FAST series offers a balance between speed and power consumption compared to standard TTL. Consider the complementary enable inputs for flexible control schemes. Evaluate the thermal performance within the -55°C to 125°C range for extreme environmental conditions. Compare against LS or ALS variants if lower power or different speed profiles are needed.

Part Context

This part belongs to the SNx4S24x family of octal buffers and line drivers. It shares functional similarities with the SNJ54LS244J but offers faster switching speeds due to the Schottky technology. The device is designed to improve density and performance in complex digital systems. It serves as a key interface component between microprocessors and peripheral devices in high-reliability applications.

Replacement Considerations

Direct substitutes may include other SNJ54S241 variants with identical pinouts and specifications. Cross-reference with SNJ54LS241J if speed requirements can be relaxed. Verify pin compatibility before replacing with SNJ54ALS241J. Ensure voltage levels and drive strengths match the original design constraints.