SN74LS670DR

Overview

The SN74LS670DR is a register file integrated circuit manufactured by Texas Instruments, belonging to the SN74LS series. It features a 4-by-4 register file architecture with three-state outputs. The device operates on a single power supply ranging from 4.75 V to 5.25 V and supports a propagation delay of 45 ns. It is housed in a 16-SOIC package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Contains a 4-by-4 register file structure for data storage
• Provides three-state outputs for bus-oriented applications
• Utilizes Low Power Schottky (LS) logic technology

Applications

• Bus-oriented memory systems
• Register file implementations in digital circuits
• Data storage in microprocessor-based designs

Procurement Notes

Verify the specific suffix 'DR' indicates the SOIC-16 surface-mount package configuration. Confirm RoHS compliance status through official documentation. Ensure the operating voltage and temperature ranges align with system requirements before procurement.

Selection Notes

Select this component when a 4x4 register file with tri-state capability is required. Compare against other LS series variants if different pin counts or output configurations are needed. Verify compatibility with existing logic families and voltage levels.

Part Context

This part belongs to the SN74LS670 family of register files. It shares functional similarities with other 74LS series components but is distinct in its specific 4x4 array configuration. Related parts may include different register sizes or non-tri-state outputs.

Replacement Considerations

Check for direct substitutes like SN74LS670N or SN74LS670D based on package preference. Verify electrical parameters match exactly. Ensure pinout compatibility if replacing in existing PCB layouts.