CD54HC194F3A

Shift Registers Overview

The CD54HC194F3A is a military-grade, high-speed CMOS logic device functioning as a 4-bit bidirectional universal shift register. It features an asynchronous master reset and operates within a supply voltage range of 2V to 6V. The component supports four distinct operating modes: shift right, shift left, parallel load, and hold. It utilizes a 16-lead ceramic dual in-line package (CDIP) designed for through-hole mounting. The device maintains functionality across an extended temperature range from -55°C to +125°C.

Shift Registers Feature Summary

• Supports four operating modes including shift right, shift left, parallel load, and hold states.

Shift Registers Applications

• Military and defense electronic systems requiring QML certification.

Shift Registers Procurement Notes

Verify the complete part number CD54HC194F3A when ordering, as suffixes define specific packaging or material variations. Confirm that the procurement channel sources directly from Texas Instruments or authorized distributors to ensure authenticity. Check current product status and lifecycle information prior to finalizing orders, as availability may vary based on manufacturing schedules.

Shift Registers Selection Notes

Select this component for applications requiring bidirectional data shifting with parallel loading capabilities in harsh environments. Ensure the design accommodates the 2V to 6V supply voltage range and the specific timing requirements for clock and data inputs. Verify that the 16-lead CDIP package fits the mechanical constraints of the target printed circuit board layout.

Shift Registers Part Context

This device belongs to the Texas Instruments CD54 series, which provides military-grade reliability and radiation hardness suitable for defense applications. It is functionally similar to the commercial CD74HC194 but meets stricter qualification standards. The HC logic family offers balanced propagation delays and significant power reduction compared to older LSTTL technologies.

Shift Registers Replacement Considerations

The CD74HC194 serves as the commercial equivalent. For direct pin-compatible replacements, verify the CD54HC194 without the F3A suffix if packaging differences are acceptable. Cross-reference with other 4-bit bidirectional shift registers only if mode compatibility and voltage ranges align.