CD74HC195PW

Shift Registers Overview

The CD74HC195PW is a 4-bit parallel-access shift register manufactured by Texas Instruments. It belongs to the HC logic series and utilizes high-speed CMOS technology. The device supports serial/parallel input and serial/parallel output configurations with a unidirectional shift direction. It features an asynchronous reset function and rising-edge triggered operation. The component is housed in a 16-pin TSSOP package, measuring 5 x 4.4 x 1.2 mm. It operates within a supply voltage range of 2 V to 6 V and functions across a temperature range of -55 °C to +125 °C.

Shift Registers Feature Summary

• Supports parallel access for simultaneous data loading into all four stages
• Provides complementary serial shift-right outputs for versatile signal routing
• Includes an asynchronous clear input for immediate state initialization

Shift Registers Applications

• Digital data storage and transfer systems
• Serial-to-parallel conversion circuits
• Parallel-to-serial conversion interfaces

Shift Registers Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-16 package variant when sourcing. Confirm RoHS compliance status as standard manufacturing may vary by production batch. Ensure the operating environment remains within the specified -55 °C to +125 °C thermal limits to maintain performance integrity. Cross-reference the manufacturer datasheet for exact pinout definitions relative to the package type.

Shift Registers Selection Notes

Select this component when a 4-bit shift register with parallel load capability is required in a surface-mount design. The HC series offers compatibility with standard CMOS logic levels. Consider the TSSOP package dimensions for PCB layout constraints. Verify that the supply voltage requirements align with the system's power distribution network before integration.

Shift Registers Part Context

This part is part of the CD74HC195 family of 4-bit parallel-access shift registers. Other variants include DIP and SOIC packages such as CD74HC195E or CD74HC195M. The family shares identical logical functionality but differs in physical packaging and mounting style. The PW suffix specifically denotes the thin-shrink small-outline package format used in compact electronic assemblies.

Shift Registers Replacement Considerations

Compatible substitutes include SN74HC195N (PDIP) and CD74HC195M (SOIC). These parts share the same logical specifications but differ in package geometry. Verify pin compatibility and mechanical fit before substitution. No functional changes are expected from package variations within the same logic family.