JM38510/65753BRA

Overview

The JM38510/65753BRA is a military-grade octal buffer and line driver manufactured by Texas Instruments. It features eight non-inverting channels with three-state outputs, designed for high-speed digital applications. The device operates within a voltage range of 4.5V to 5.5V and utilizes CMOS technology. It is housed in a 20-pin ceramic dual in-line package (CDIP) suitable for through-hole mounting. The component supports an operating temperature range from -55°C to 125°C, ensuring reliability in harsh environments. Key electrical characteristics include a typical propagation delay of 12ns at 5V and output drive capabilities of ±6mA.

Feature Summary

• Octal configuration providing eight independent non-inverting buffer channels
• Three-state outputs allowing direct bus driving connections
• Military-grade construction with ceramic metal-sealed packaging
• CMOS technology enabling low power consumption and high noise immunity

Applications

• High-speed data bus buffering in military avionics systems
• Line driving for long-distance signal transmission in ruggedized equipment
• Memory interface buffering in aerospace computing modules
• Digital logic level shifting in defense communication hardware

Procurement Notes

Verify the complete part number including the suffix BRA to ensure correct package and screening grade. Confirm that the supplier provides traceability documentation required for military specifications. Check for compliance with current export control regulations as this is a controlled item. Ensure storage conditions meet humidity sensitivity requirements for ceramic packages. Validate authenticity through authorized distribution channels to avoid counterfeit components.

Selection Notes

Select this component when eight buffered channels with tri-state capability are required for bus architectures. Consider the CDIP package if through-hole mounting and thermal stability are prioritized over surface area constraints. Evaluate the 4.5V to 5.5V supply requirement against system power rails. Compare propagation delays against timing budgets for high-speed interfaces. Assess the need for military screening versus commercial alternatives based on environmental exposure.

Part Context

This part belongs to the 54HCT series of high-speed CMOS logic devices adapted for military standards. It serves as a robust alternative to commercial HCT buffers in demanding applications. The JM38510 prefix indicates compliance with specific military procurement codes. It complements other octal drivers in the family offering varying inversion states or package types.

Replacement Considerations

Direct substitutes include other 54HCT240 variants meeting MIL-STD-883 screening. Verify pin compatibility and electrical parameters before swapping. Commercial equivalents like SN74HCT240 lack the required environmental ratings. Ensure replacement parts maintain the same ceramic package dimensions for mechanical fit.