SNJ54HC195J

Overview

The SNJ54HC195J is a 4-bit parallel-access shift register manufactured by Texas Instruments. It operates within the HC logic series and supports serial/parallel to serial/parallel data transfer modes. The device features an asynchronous reset function and rising-edge triggered clocking. It is designed for military-grade reliability, operating across an extended temperature range from -55 °C to +125 °C. The component utilizes a 16-pin ceramic dual in-line package (CDIP) suitable for surface mount or through-hole integration depending on specific board design requirements.

Feature Summary

• Supports bidirectional data loading via parallel inputs or serial shift operations
• Includes dedicated complementary serial shift right output capability
• Features asynchronous reset functionality for immediate state clearing

Applications

• Military aerospace data processing systems
• High-reliability industrial control logic circuits
• Secure communication signal shifting modules

Procurement Notes

Verify the exact suffix J indicates the ceramic DIP package variant when sourcing. Confirm RoHS compliance status as legacy military parts may differ from commercial equivalents. Ensure supply chain authenticity due to the specialized nature of the 54-series components. Cross-reference datasheet revisions for any pinout modifications prior to final PCB layout approval.

Selection Notes

Select this component when high-temperature stability and radiation hardness are required compared to standard 74HC variants. The HC series offers faster switching speeds than LS counterparts while maintaining CMOS power efficiency. Consider the physical dimensions of the CDIP package against available board space constraints during mechanical design phases.

Part Context

This part belongs to the Texas Instruments SNx4HC family of high-speed CMOS logic devices. The 54-series designation typically signifies military-grade qualification standards with stricter testing protocols than commercial 74-series parts. It serves as a digital storage element within larger sequential logic architectures requiring reliable data retention under extreme environmental conditions.

Replacement Considerations

SN54HC195J

FAQ

What is the trigger type for the SNJ54HC195J?

The device uses rising-edge triggered clocking for data registration.

Does the SNJ54HC195J support parallel data loading?

Yes, it is a parallel-access shift register allowing simultaneous data entry into all four bits.