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Product Detailed Parameters
- Description：IC OCT BUFF/DRVR TRI-ST 20-SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Logic Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Input Type：-
- Output Type：-
- Current - Output High, Low：-
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Grade：-
- Qualification：-
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Overview
The SN74ALS2240DW is an octal buffer and line driver manufactured by Texas Instruments, featuring three-state outputs. It operates within a supply voltage range of 4.5V to 5.5V and utilizes a 20-SOIC surface-mount package with a width of 7.50mm. The device belongs to the ALS logic series and provides eight input lines and eight output lines. It is designed for high-speed digital applications requiring buffered signal transmission.
Feature Summary
- Provides octal buffering and line driving capabilities with three-state output control
- Utilizes Advanced Low-Power Schottky (ALS) technology for improved speed and power efficiency
- Supports surface-mount installation in a standard 20-pin SOIC package
Applications
- High-speed data bus buffering in computer systems
- Clock distribution networks requiring signal integrity
- Memory interface circuits needing tri-state isolation
Procurement Notes
Verify component status as the SN74ALS2240DW is listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or surplus suppliers. Ensure compatibility with existing PCB footprints and design specifications before procurement. Check for valid replacement alternatives if long-term supply stability is required.
Selection Notes
Select this component for applications requiring octal buffering with three-state functionality in the ALS logic family. Consider the 20-SOIC package constraints and 4.5V to 5.5V operating voltage range. Evaluate performance needs against newer successors if available, given the obsolete status. Ensure system design accommodates the specific electrical characteristics of the ALS series.
Part Context
This part belongs to the SN74ALS series of logic integrated circuits from Texas Instruments. It serves as an octal buffer/driver variant within the broader 74xx logic ecosystem. The DW suffix indicates the 20-SOIC surface-mount package configuration. It is distinct from non-inverting variants like the SN74ALS244.
Replacement Considerations
Public confirmed substitute part numbers are not explicitly documented in the provided source material. Verify equivalent components such as the SN74ALS540 or SN74ALS244 based on functional requirements, noting potential differences in polarity or package type.
