SN74ALS648ADWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS648ADWR is an octal bus transceiver with registers and 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from 0°C to +70°C. The device features a propagation delay of 10 ns and is housed in a 24-SOIC package. It draws a maximum supply current of 20 mA and provides high drive capability with low-level output currents up to 24 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates octal bus transceivers with D-type registers for data storage and transfer
• Provides 3-state outputs to facilitate direct connection to system buses
• Supports bidirectional data flow between external data lines and the register

Buffers, Drivers, Receivers, Transceivers Applications

• High-performance microprocessor-based systems
• Memory mapping applications requiring registered bus interfaces
• Clocking circuits utilizing registered bus architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 24-SOIC footprint matches the target PCB design constraints. Ensure the commercial grade temperature rating aligns with the operational environment specifications before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require registered bus interfacing with high-speed performance characteristics. The ALS logic family offers improved speed over standard TTL while maintaining compatible power consumption levels. Consider the 3-state output capability for efficient bus sharing in complex digital architectures without additional gating logic.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74ALS series, which utilizes Advanced Low-Power Schottky technology. The SN74ALS648 specifically addresses applications needing both bus driving and data latching capabilities in a single package. It serves as a critical interface element in legacy and industrial control systems requiring reliable octal data handling.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the SN74ALS648DW for tube packaging or the SN74LS648 for standard LS logic compatibility. Verify pinout compatibility and electrical characteristics when transitioning between these variants to ensure system integrity.