54FCT374TLB

Overview

The IDT54FCT374TLB is an octal D-type register featuring three-state outputs, manufactured using advanced dual-metal CMOS technology. It operates within a military temperature range of -55°C to 125°C and utilizes a 20-pin LCC package. The device provides eight D-type flip-flops with a buffered common clock and buffered three-state output control. Data is transferred from the D inputs to the O outputs on the low-to-high transition of the clock input, provided setup and hold time requirements are met.

Feature Summary

• Octal D-type registers with true outputs
• Three-state output capability for bus driving
• Buffered common clock and output enable controls
• Military-grade reliability compliant with MIL-STD-883

Applications

• High-performance memory buffering in military systems
• Bus interface circuits requiring high drive capability
• Data acquisition systems operating in extreme temperatures
• Wide data path buffering for parity buses

Procurement Notes

Verify the specific suffix 'TLB' against official Integrated Device Technology documentation to confirm pinout, speed grade, and radiation tolerance status. Ensure the component meets MIL-STD-883 Class B requirements if specified for defense applications. Cross-reference the manufacturer's current datasheet for any updates regarding lead-free compliance or package variations.

Selection Notes

Select this component when designing systems that require octal latching with high-drive three-state outputs under harsh environmental conditions. The FCT series offers CMOS power levels with TTL compatibility. Consider the TLB package type for surface-mount assembly needs where ceramic LCC packages provide superior thermal and mechanical stability compared to plastic alternatives.

Part Context

This part belongs to the IDT 54/74FCT family of fast CMOS logic devices. The 54 prefix indicates military temperature rating, while the 374 designation specifies an octal D-register function. The TLB suffix typically denotes a 20-lead ceramic LCC package. This family is designed to replace slower TTL logic with higher speed and lower power consumption.

Replacement Considerations

Equivalent parts include IDT54FCT374AD and IDT54FCT374ADB. Verify package compatibility and speed grade differences before substitution. Other manufacturers may offer compatible FCT-series octal registers, but ensure voltage levels and drive strengths match the original design specifications.