SN74HC640PWT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC640PWT is an octal bus transceiver with 3-state outputs in a TSSOP-20 package. It operates from 2V to 6V, featuring low power consumption of 80µA max ICC and typical propagation delay of 8ns at 5V. Outputs drive up to 10 LSTTL loads with ±4mA at 5V. Input current is 1µA max. The device supports asynchronous two-way communication controlled by DIR and OE pins.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver with 3-state outputs for bidirectional data transfer
• Wide operating voltage range from 2V to 6V
• Low power consumption with 80µA maximum supply current
• Inverting logic with high-current outputs capable of driving multiple LSTTL loads

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous two-way communication between data buses
• Memory and memory mapping control systems
• Driving transceivers and bus-oriented communications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the exact part number SN74HC640PWT against the manufacturer's orderable addendum. Confirm the PW (TSSOP) package type and ensure compatibility with your board layout requirements. Check for any specific environmental or handling certifications required for your application.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal bus transceiver with 3-state outputs is needed. Ensure the operating voltage range of 2V to 6V matches your system design. Consider the TSSOP-20 package size for space-constrained applications. Verify that the propagation delay and output drive capabilities meet your signal integrity requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

The SN74HC640 is part of Texas Instruments' HC logic family, designed for high-speed CMOS operations. It offers a balance of speed and power efficiency, suitable for various digital logic applications. The device is available in multiple packages, including TSSOP, SOIC, and PDIP, to accommodate different mounting and space requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HC640PW: Direct replacement in TSSOP-20 package. SN74HC640PWR: Tape and reel version of the same device. SN74HC640DW: SOIC-20 package alternative. SN74HC640N: PDIP-20 through-hole alternative.