54LS195DM

Overview

The 54LS195DM is a universal shift register manufactured by National Semiconductor, belonging to the 54LS series. It features a 4-bit parallel-in/serial-out configuration with complementary outputs. The device operates on TTL logic and is housed in a 16-pin Ceramic Dual In-Line Package (CDIP). It supports a supply voltage range of 4.5V to 5.5V. This component is designed for military-grade reliability and high-speed data shifting applications within industrial environments.

Feature Summary

• Provides 4-bit parallel input capability for rapid data loading into the register structure.
• Features serial output functionality allowing for cascading or sequential data transmission.
• Includes complementary outputs for versatile logic interfacing and signal inversion requirements.
• Constructed with ceramic packaging to ensure durability and performance in harsh conditions.

Applications

• Military-grade digital data processing systems requiring high reliability
• Industrial control circuits utilizing TTL logic standards
• Parallel-to-serial conversion modules in communication hardware

Procurement Notes

Verify the manufacturer origin, as Texas Instruments acquired National Semiconductor. Confirm the specific suffix 'DM' indicates the ceramic dual in-line package variant. Ensure the component meets the required military temperature specifications associated with the 54-series designation before finalizing procurement orders.

Selection Notes

Select this component when military-grade environmental tolerance and ceramic packaging are mandatory. It is suitable for designs requiring 4-bit shift register functionality with parallel load capabilities. Consider the 16-pin CDIP footprint constraints during PCB layout. Verify compatibility with existing 5V TTL logic levels in the target system architecture.

Part Context

This part belongs to the 54LS family, which denotes low-power Schottky TTL logic optimized for speed and power efficiency. The 54-series prefix typically signifies military-grade qualification, distinguishing it from commercial 74-series counterparts. National Semiconductor developed this line before its acquisition by Texas Instruments, maintaining legacy support for critical defense and aerospace applications.

Replacement Considerations

Direct substitutes include other 54LS195 variants from compatible manufacturers. Verify pinout compatibility and electrical characteristics against the original datasheet. Ensure the replacement maintains the 16-pin CDIP form factor if physical mounting constraints exist.