74ABT16501CSSCX

Overview

The Fairchild Semiconductor 74ABT16501CSSCX is an 18-bit universal bus transceiver featuring three-state outputs. It belongs to the ABT logic series and operates within a supply voltage range of 4.5V to 5.5V. The device utilizes a 56-pin Thin Shrink Small Outline Package (TSSOP). It supports bidirectional data transmission with independent output enable controls for each direction, designed for high-speed memory and address driving applications.

Feature Summary

• Provides 18-bit bidirectional data path capability
• Features independent output enable control for each transmission direction
• Utilizes three-state outputs to prevent bus contention

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitter/receiver systems

Procurement Notes

Verify the specific package marking and manufacturer date code against the original Fairchild Semiconductor datasheet specifications. Confirm that the 56-pin TSSOP footprint matches the target PCB design requirements. Ensure compatibility with the required 4.5V to 5.5V power supply rails before integration into the final assembly.

Selection Notes

Select this component when an 18-bit wide data interface is required with precise directional control. The ABT series offers optimized switching speeds suitable for high-performance digital systems. Verify that the system environment supports the specified operating temperature range and that the TSSOP-56 package constraints fit the mechanical layout.

Part Context

This component is part of the broader 74ABT family of high-speed CMOS logic devices. It serves as a critical interface element in complex digital architectures requiring reliable data transfer between processors and peripheral memory modules. The design follows standard JEDEC pinout conventions for universal bus transceivers.

Replacement Considerations

Cross-reference with SN74ABT16501 variants from Texas Instruments for parameter-equivalent functionality. Verify pin-to-pin compatibility and electrical characteristics before substituting.