SN74HCT245DWRE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT245DWRE4 is an octal bus transceiver manufactured by Texas Instruments, featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data transmission controlled by a single direction pin. The device utilizes HCT logic, ensuring TTL-compatible inputs while providing CMOS outputs. Packaged in a 20-pin Small Outline Integrated Circuit (SOIC) with a .4-inch width, it functions reliably across an industrial temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight bidirectional channels for efficient data transfer between buses.
• Features three-state outputs to prevent signal contention on shared lines.
• Ensures compatibility with TTL logic levels through HCT input specifications.

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data acquisition systems requiring isolated bus segments
• Memory buffer applications in embedded controller architectures
• I/O expansion interfaces connecting microprocessors to peripheral devices

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix RE4 indicates tape-and-reel packaging when sourcing components. Confirm that the HCT logic family matches the system's voltage requirements, as it differs from standard HC or ACT series. Ensure the SOIC-20 package dimensions align with the printed circuit board footprint design constraints before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-compatible inputs are required alongside high-noise immunity typical of CMOS technology. The HCT series offers faster switching speeds than standard LS logic while maintaining backward compatibility. Consider the 20-pin SOIC package for surface-mount assembly efficiency compared to through-hole alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCT245 family of octal bus transceivers. It shares functional similarities with other variants like the SN74HC245 but distinguishes itself through specific input threshold characteristics designed for interfacing with TTL-driven systems. The DWRE4 designation specifies the SOIC package and reel packaging format.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCT245DWR serves as a direct alternative without the E4 environmental compliance suffix. SN74ACT245DWRE4 provides higher drive current capabilities but requires strict adherence to its specific operating voltage limits.