SN74AS648NT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS648NT is an octal bus transceiver and register featuring three-state outputs, manufactured by Texas Instruments. It operates within a voltage range of 4.5V to 5.5V and utilizes a 24-pin PDIP package. The device integrates inversion functionality for signal direction control. It supports high-speed data transfer with propagation delays characteristic of the AS logic family. The component includes registered outputs to maintain data integrity during bus transitions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent bidirectional data paths
• Three-state outputs allowing direct connection to system buses without additional drivers
• Integrated registration capability for stable data storage during bus operations
• Inverting polarity for logical signal inversion during transmission

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed memory systems requiring registered data buffering
• Bidirectional data bus architectures in computing hardware
• Industrial control systems utilizing isolated I/O expansion
• Communication interfaces requiring signal inversion and latching

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify current availability status as this specific part number may be obsolete or discontinued by the manufacturer. Confirm pin compatibility and electrical specifications against existing designs before procurement. Check for authorized distributors offering genuine components to avoid counterfeit risks. Ensure packaging type matches assembly requirements. Validate lead times due to potential supply chain constraints for legacy logic families.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal width data transfer with built-in latching capabilities. Consider the AS series speed characteristics for applications needing faster switching than standard LS logic. Evaluate power consumption differences compared to ALS alternatives. Ensure voltage levels align with the 4.5V to 5.5V operating range. Verify package footprint compatibility with PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the Texas Instruments SN74AS series of advanced Schottky logic devices. The SN74AS648 variant specifically addresses needs for wide-data bus interfacing with registration. It complements other bus transceivers in the family that may lack integrated registers or different output configurations. The NT suffix indicates the through-hole DIP packaging option.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute: SN74ALS648ADW. Verify functional equivalence regarding pinout and electrical parameters. Note potential differences in propagation delay and power consumption between AS and ALS technologies. Confirm package compatibility if transitioning from DIP to SOIC.