26LS32BPC

Overview

The Rochester Electronics LLC 26LS32BPC is a quad differential line driver designed for digital data transmission over balanced lines. It meets the requirements of EIA standard RS-422 while retaining low power CMOS characteristics. The device accepts TTL or CMOS input levels and translates them to RS-422 output levels. Key electrical parameters include operation from a single 5V supply, typical output skew of 0.5ns, and typical propagation delay of 6ns. All outputs are protected against electrostatic discharge damage via diodes to VCC and ground.

Feature Summary

• Quad differential line driver architecture
• RS-422 compliance with low power CMOS technology
• TTL and CMOS input compatibility
• ESD protection on all outputs

Applications

• Digital data transmission over balanced lines
• System bus connections requiring 3-state outputs
• Industrial communication interfaces

Procurement Notes

Verify the specific manufacturing date code and lot traceability directly with the supplier, as Rochester Electronics sources components through licensed manufacturing partners. Confirm that the package marking matches the exact part number variant requested. Request the original datasheet or specification sheet to ensure the electrical characteristics align with your system design requirements before finalizing any acquisition.

Selection Notes

Select this component when a quad differential driver compliant with RS-422 standards is required for balanced line transmission. Ensure the system operates at a single 5V supply voltage. Verify that the 6ns propagation delay and 0.5ns skew meet the timing constraints of the application. Consider the surface mount package availability if space constraints exist within the PCB layout.

Part Context

Rochester Electronics specializes in providing lifecycle support for obsolete and hard-to-find semiconductors. The 26LS32BPC is part of their portfolio of interface ICs, originally manufactured by National Semiconductor. This component serves as a replacement for legacy designs requiring RS-422 compatible drivers, ensuring continuity for industrial and commercial applications where original production has ceased.

Replacement Considerations

The ST26C31B is a functionally equivalent quad differential line driver meeting RS-422 standards. Verify pinout compatibility and electrical specifications such as propagation delay and supply voltage range before substitution.