54FCT244TDB

Overview

The 54FCT244TDB is a military-grade octal buffer and line driver manufactured by Renesas Electronics Corporation. It utilizes FCT/PCT-CMOS technology to provide high-speed data transmission with low power consumption. The device features eight non-inverting buffers, each equipped with three-state outputs controlled by separate enable inputs. Designed for robust performance in demanding environments, it operates within an extended temperature range of -55°C to +125°C. The component is housed in a 20-lead ceramic dual in-line package (CDIP), ensuring mechanical stability and reliable electrical connections for aerospace and defense applications requiring strict environmental compliance.

Feature Summary

• Octal configuration providing eight independent non-inverting buffer channels
• Three-state output capability allowing multiple drivers to share bus lines
• Military-grade construction supporting operation from -55°C to +125°C
• Fast CMOS technology enabling high-speed switching with low power dissipation

Applications

• Aerospace and defense electronic systems
• High-reliability data processing equipment
• Harsh environment signal buffering
• Military communication interfaces

Procurement Notes

Verify the specific suffix 'TDB' corresponds to the 20-lead CDIP ceramic package when sourcing. Confirm RoHS status as military parts often differ from commercial standards. Ensure the supplier provides traceability documentation required for defense contracts. Check for recent production change notices that may affect pinout or material composition. Validate that the operating temperature range meets the specific environmental requirements of the target application.

Selection Notes

Select this component when octal buffering with three-state control is required in extreme temperature conditions. Compare against commercial variants if the -55°C lower limit is unnecessary. Consider the ceramic package size constraints compared to plastic SOP alternatives. Evaluate power supply stability requirements given the CMOS input characteristics. Ensure compatibility with existing logic families driving the input signals.

Part Context

This part belongs to the 74FCT series of fast CMOS logic devices, which bridge the performance gap between standard TTL and advanced CMOS technologies. The 54-series designation indicates military qualification, distinguishing it from the commercial 74-series counterparts. Renesas continues to support legacy military components through established supply chains for critical infrastructure maintenance.

Replacement Considerations

Direct substitutes include other military-grade octal buffers such as the 54FCT244 in alternative packages. Verify pin compatibility before replacing with commercial 74FCT244 variants, noting the reduced temperature range. Consult manufacturer cross-reference guides for updated equivalents if the original part becomes obsolete.