SN74HCT245PWRE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT245PWRE4 is an octal bus transceiver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data transfer controlled by a single direction pin. The device utilizes HCT logic, ensuring TTL-compatible inputs while providing CMOS outputs. It is housed in a 20-pin TSSOP package with a wide operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides bidirectional octal data transmission via a single direction control input.
• Features three-state outputs that isolate the bus when disabled.
• Ensures compatibility with TTL logic levels through HCT input specifications.

Buffers, Drivers, Receivers, Transceivers Applications

• Mobile applications requiring low power consumption and high speed
• Clock drivers and buffered oscillators
• Memory mapping controls

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity by checking for the Texas Instruments logo and part marking on the package. Confirm the suffix 'E4' indicates lead-free composition and RoHS compliance. Ensure the TSSOP-20 package dimensions match your PCB footprint requirements before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing between systems requiring TTL-compatible input thresholds and CMOS output drive capabilities. The HCT series is suitable for designs needing standard 5V operation with defined noise margins. Consider the TSSOP package size constraints and thermal dissipation characteristics relative to other available packages like SOIC or DIP.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4HCT245 family of octal bus transceivers. It shares functional similarities with the SN74HC245 but differs in input threshold voltages to accommodate TTL logic levels. The PWRE4 suffix specifically denotes the TSSOP package, reel packaging, and environmental compliance attributes defined by Texas Instruments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include SN74HCT245PWR and SN74HCT245DWRE4, provided the package type (TSSOP vs SOIC) is compatible with the design. Verify pinout consistency and electrical parameters such as propagation delay and output current drive when substituting.