SN74LS170N

Shift Registers Overview

The SN74LS170N is a quad-by-quad register file manufactured by Texas Instruments in the LS logic series. It features open-collector outputs and operates within a supply voltage range of 4.75 V to 5.25 V. The device contains four independent 4-bit registers with a maximum propagation delay of 45 ns at 5 V. It utilizes a 16-pin PDIP package for through-hole mounting and supports an operating temperature range from 0°C to +70°C.

Shift Registers Feature Summary

• Contains four independent 4-bit registers
• Features open-collector outputs
• Supports through-hole mounting via 16-pin DIP package

Shift Registers Applications

• Data storage applications requiring multiple 4-bit registers
• Digital systems utilizing open-collector output configurations
• General-purpose logic circuits compatible with LS TTL standards

Shift Registers Procurement Notes

Verify that the specific application requires open-collector outputs, as this configuration differs from standard push-pull designs. Confirm compatibility with the 4.75 V to 5.25 V supply voltage range. Ensure the 16-pin PDIP package fits the target PCB footprint. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Shift Registers Selection Notes

Select the SN74LS170N when a design requires four separate 4-bit storage elements with open-collector drivers. This component is suitable for interfacing with bus structures or wired-logic networks due to its output type. Consider the 45 ns propagation delay for timing constraints. Compare against the SN74LS670N if three-state outputs are preferred instead of open-collector.

Shift Registers Part Context

This component belongs to the SN74LS family of bipolar logic integrated circuits produced by Texas Instruments. The LS series offers lower power consumption compared to standard TTL while maintaining similar speed characteristics. Register files like this part are fundamental building blocks for sequential logic circuits and data handling systems.

Shift Registers Replacement Considerations

The SN74LS670N serves as a functional substitute but provides three-state outputs rather than open-collector. Verify that the circuit design can accommodate the difference between open-collector and three-state output architectures before substitution.