SN74HCT245DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT245DWR is an octal bus transceiver manufactured by Texas Instruments, belonging to the HCT logic series. It features eight bidirectional channels with three-state outputs housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -40°C to +85°C. Key electrical characteristics include a maximum propagation delay of 30 ns at 4.5 V with a 150 pF load, and output drive capabilities of 6 mA for both high and low states. Input levels are compatible with TTL standards while outputs utilize CMOS technology.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides bidirectional data transmission across eight independent channels controlled by a single direction pin.
• Features three-state outputs that allow connection to a common bus without electrical interference when disabled.
• Ensures compatibility with standard TTL input logic levels while delivering CMOS output performance.

Buffers, Drivers, Receivers, Transceivers Applications

• Mobile applications requiring robust data transfer capabilities
• Clock driving and buffer applications in digital systems
• High noise immunity industrial control environments

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DWR' confirms the SOIC-20 surface-mount package and reel packaging configuration. Ensure the HCT logic family matches the system's 5V TTL input requirements. Confirm RoHS compliance status through official manufacturer documentation prior to integration into regulated assemblies.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional octal data transfer is required between buses operating at 5V logic levels. The HCT series ensures direct interface with TTL devices, eliminating the need for level shifting. Consider the SOIC-20 package dimensions for PCB layout constraints and verify thermal management needs for the specified operating temperature range.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4HCT245 family of octal bus transceivers with three-state outputs. It serves as a standard solution for bidirectional data flow in digital circuits. The HCT variant specifically bridges the gap between older TTL logic families and modern CMOS technologies, ensuring reliable signal integrity in mixed-logic systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCT245DW: Identical functional specifications with a non-reel SOIC-20 package variant.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the input logic compatibility of the SN74HCT245DWR?

The device accepts TTL input levels, allowing it to interface directly with standard TTL logic sources while providing CMOS outputs.

How does the direction control function operate?

A single direction control pin determines the data flow direction for all eight channels simultaneously, enabling simple bidirectional bus management.