74HCT194N,652

Shift Registers Overview

The NXP USA Inc. 74HCT194N,652 is a single 4-bit universal shift register belonging to the HCT logic family. It features serial and parallel input capabilities with parallel outputs, housed in a 16-pin PDIP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional shifting controlled by dedicated clock inputs. It includes independent clear and mode selection inputs to define data flow direction.

Shift Registers Feature Summary

• Supports four-bit serial-to-parallel and parallel-to-serial data transfer operations
• Provides bidirectional shifting capability via separate clock inputs for left and right directions
• Features synchronous clear functionality to reset all flip-flops simultaneously

Shift Registers Applications

• Data storage and buffering in digital systems
• Serial-to-parallel conversion interfaces
• Parallel-to-serial transmission modules

Shift Registers Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices prior to procurement. Ensure packaging specifications match design requirements. Validate datasheet revisions against current production standards to avoid integration issues.

Shift Registers Selection Notes

Select this component when TTL-compatible CMOS performance is required for shift register applications. The HCT series ensures compatibility with standard TTL logic levels while offering lower power consumption. Consider the PDIP package for through-hole mounting needs and verify operating temperature ranges suit the target environment.

Shift Registers Part Context

This part belongs to the widely adopted 74HCT logic family, designed to bridge CMOS technology with legacy TTL system requirements. The 74HCT194 variant specifically addresses universal shift register needs, providing flexible data handling options for embedded controllers and communication interfaces requiring reliable bit manipulation.

Shift Registers Replacement Considerations

Cross-reference with other manufacturers' 74HCT194 equivalents such as those from Texas Instruments or ON Semiconductor. Verify pinout compatibility and electrical characteristics before substitution. Check for any functional differences in control signal timing or output drive strength.