26LS33/BFA

Overview

The 26LS33/BFA is a quad differential line receiver manufactured by Rochester Electronics, LLC. It functions as an RS-422 interface component designed for high-speed data transmission. The device operates within a supply voltage range of 4.75 V to 5.25 V, with a nominal voltage of 5 V. It supports data rates up to 10 Mb/s and includes four independent receivers. The unit is housed in a CDFP-16 ceramic package, suitable for hermetic sealing applications. It is rated for commercial temperature operation.

Feature Summary

• Provides four independent differential receivers for RS-422 communication
• Utilizes a hermetically sealed ceramic flatpack package
• Supports high-speed data transmission capabilities

Applications

• RS-422 serial communication interfaces
• Industrial control systems requiring hermetic sealing
• High-noise environment data transmission links

Procurement Notes

Verify the specific manufacturer source code and lot traceability upon order confirmation. As a Rochester Electronics product, this item may be sourced from existing inventory or remanufactured channels. Confirm the package integrity and seal quality are consistent with aerospace or military specifications if required for your application. Ensure the ordering suffix matches the exact pinout and material requirements of your design.

Selection Notes

Select this component when a hermetically sealed quad differential receiver is required for RS-422 networks. The CDFP-16 package is distinct from standard plastic SOIC variants, making it suitable for harsh environments. Compare against the AM26LS33A series for functional equivalence while noting the packaging difference. Ensure the system design accommodates the physical dimensions and mounting requirements of the ceramic flatpack form factor.

Part Context

Rochester Electronics specializes in sustaining obsolete and hard-to-find semiconductor products. This part belongs to the AMD 26LS3x family of RS-422 transceivers, originally developed by Advanced Micro Devices. Rochester maintains production of these legacy devices through licensed manufacturing processes, ensuring availability for long-life industrial and defense applications where original OEM sources are discontinued.

Replacement Considerations

The AM26LS33ACD and AM26LS33ACDR are functionally equivalent receivers but utilize SOIC packages rather than the CDFP-16 ceramic housing. Direct substitution requires verifying board space and mounting method compatibility. Other quad receivers in the AM26LS33A family offer identical electrical performance but differ in package type.