SN74AC245DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AC245DW is an octal bus transceiver from the Texas Instruments AC logic family, housed in a 20-pin SOIC package. It features three-state outputs and supports bidirectional data transmission controlled by direction pins. The device operates within a supply voltage range of 2 V to 6 V and maintains CMOS input and output levels. Key electrical parameters include a propagation delay of 7 ns, low-level output current of 24 mA, and high-level output current of -24 mA. It functions reliably across a temperature range of -40°C to +85°C with a maximum power supply current of 4 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight bidirectional channels for efficient data transfer between buses.
• Features three-state outputs to isolate the device when not selected.
• Supports wide supply voltage operation compatible with various system architectures.

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus communication interfaces
• Memory-to-memory or memory-to-I/O transfers
• General-purpose octal bus driving applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific revision level and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the 20-pin SOIC package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Check for any end-of-life notices or obsolescence warnings associated with this part number.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal width is required for bus interfacing. The AC series offers a balance of speed and drive strength suitable for general-purpose applications. Consider the 2 V to 6 V supply range compatibility with your system rails. Verify that the 7 ns propagation delay meets your timing constraints. Compare against AHC or ACT variants if lower power or different drive characteristics are needed.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SNx4AC245 family of octal bus transceivers. It shares functional similarities with other members like the SN74AHC245 and SN74ACT245 but differs in specific electrical characteristics such as speed and drive current. The DW suffix indicates a plastic small-outline package (SOIC) with a 20-lead configuration. It is designed for standard commercial and industrial temperature ranges.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible substitutes include SN74AC245DWR and SN74AC245DGSR. Alternative families such as SN74AHC245 or SN74ACT245 may serve as functional replacements if electrical parameters align with design requirements. Verify package compatibility and ensure voltage thresholds match the target application.