SNJ54LS240FK

Overview

The SNJ54LS240FK is an octal buffer and line driver featuring three-state outputs, manufactured by Texas Instruments. It belongs to the LS logic family and operates within a voltage range of 4.5V to 5.5V. The device provides two independent functions, each handling four bits, for a total of eight channels. It utilizes a 20-pin LCC package and supports an operating temperature range from -55°C to 125°C.

Feature Summary

• Octal configuration with inverted outputs
• Three-state output capability for bus driving
• Wide operating temperature range suitable for harsh environments

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented architectures

Procurement Notes

Verify the specific suffix FK indicates the ceramic LCC package variant when sourcing. Confirm that the component meets space-rated requirements if applicable, as standard commercial versions may differ in qualification. Ensure the supplier provides traceability documentation consistent with military or aerospace specifications for this part number.

Selection Notes

Select this component when high-speed octal buffering with inverted logic is required. The LS technology offers a balance of speed and power consumption. Consider the 20-pin LCC package constraints for PCB layout. Verify input/output compatibility with existing TTL logic levels in the system design.

Part Context

This part is part of the 54LS series, designed for military-grade performance. It serves as a digital logic buffer, converting signals for transmission over buses. The ceramic packaging ensures durability in extreme thermal conditions compared to plastic variants.

Replacement Considerations

Direct replacements include other 54LS240 variants with compatible pinouts such as SN54LS240. Verify package type differences between CFP and LCC options. Cross-reference with SNJ54LS240AJ for DIP alternatives if form factor changes are acceptable.