CD54HC259F3A

Latches Overview

The Harris Corporation CD54HC259F3A is an 8-bit addressable latch implemented in CMOS technology. It features a ceramic DIP-16 package with glass-sealed construction, designed for military and aerospace environments. The device operates within a supply voltage range of 2V to 6V and supports a wide temperature range from -55°C to 125°C. Key electrical characteristics include a maximum propagation delay of 59 ns at nominal supply and a load capacitance of 50 pF. It provides true output polarity and includes specific screening levels such as 38535Q/M, 38534H, and 883B.

Latches Feature Summary

• Provides 8-bit parallel data storage with individual address selection via three address inputs.
• Features true output polarity with tri-state capability for bus isolation.
• Constructed using hermetically sealed ceramic packaging for harsh environment reliability.

Latches Applications

• Military communication systems requiring high-reliability data storage
• Aerospace instrumentation addressing and latching circuits
• Industrial control systems operating in extreme temperature ranges

Latches Procurement Notes

Verify the specific screening level (e.g., 38535Q/M, 38534H, or 883B) required for your application, as these denote different quality assurance standards. Confirm that the ceramic DIP-16 package matches your board layout constraints. Ensure the supply voltage remains within the 2V to 6V range during operation. Check for RoHS non-compliance status if environmental regulations apply to your final assembly process.

Latches Selection Notes

Select this component when an 8-bit addressable latch with tri-state outputs is needed in a ruggedized form factor. The HC/UH series offers standard CMOS performance suitable for general-purpose logic applications. Consider the 59 ns propagation delay for timing-critical designs. The wide operating temperature range makes it suitable for defense and space applications where standard commercial parts would fail.

Latches Part Context

This part belongs to the Harris Corporation CD54HCxxxF3A family of high-speed CMOS logic devices. These components are typically manufactured under MIL-PRF-38534 or MIL-PRF-38535 specifications. The 'F3A' suffix indicates a specific package and screening variant within the broader HC/UH logic family, ensuring compatibility with other military-grade CMOS logic components from the same manufacturer.

Latches Replacement Considerations

Public confirmed substitute part numbers: CD54HC259F, CD54HC259F3W.