SN74ALS747-1DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS747-1DW is an octal buffer and line driver from Texas Instruments' ALS logic series, housed in a DW (SOIC-20) package. It features eight non-inverting outputs with input pull-up resistors, designed for TTL-compatible inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation. It provides high-speed signal buffering with a propagation delay of approximately 18 ns, suitable for digital data transmission applications requiring robust drive capability.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent non-inverting buffer channels
• Integrated input pull-up resistors to ensure defined logic states
• TTL-compatible input structure for direct interfacing with standard logic families
• High-speed ALS performance optimized for efficient signal transmission

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address and data bus buffering
• Clock signal distribution networks
• Digital data line drivers for parallel communication interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix '1D' against the manufacturer's official documentation to confirm pinout and electrical characteristics match project requirements. Ensure the SOIC-20 package dimensions align with PCB footprint constraints. Confirm RoHS compliance status through current datasheets as manufacturing processes may evolve over time.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal buffer with built-in pull-ups is required for TTL-level signals. The ALS series offers a balance of speed and power consumption compared to standard 74-series logic. Consider the SOIC-20 package for automated surface-mount assembly processes where space efficiency is critical.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS74A family of advanced low-power Schottky logic devices. It serves as a specialized variant of the standard SN74ALS747, distinguished by the '-1' suffix which typically denotes specific packaging or testing variations defined by Texas Instruments. It complements other ALS buffers and drivers in system designs requiring multiple buffered channels.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the SN74ALS747DW for standard versions without the specific '-1' designation, provided pinouts are identical. Cross-reference with SN74LS747DW for legacy compatibility, noting potential differences in switching speed and power dissipation between LS and ALS technologies.