SN74HC240DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC240DW is an octal buffer and line driver manufactured by Texas Instruments, featuring three-state outputs. It operates within a supply voltage range of 2V to 6V and supports a wide operating temperature range from -40°C to +85°C. The device utilizes a 20-pin SOIC package for surface-mount installation. Key electrical characteristics include high-level output current of -7.8mA and low-level output current of 7.8mA, with a static current of 8µA. Propagation delay is specified at 165ns at 2V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal buffering capability with eight input and eight output lines
• Three-state output configuration for bus-oriented applications
• Inverting logic polarity for signal direction control

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented systems requiring signal buffering
• Memory address drivers for data buses
• Clock distribution circuits in digital systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DW' corresponds to the 20-SOIC package variant when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering part number matches the required tape-and-reel or tube packaging format for your assembly process. Cross-reference the manufacturer date code to ensure component freshness.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring octal buffering with three-state outputs in a surface-mount form factor. Compare propagation delay specifications against system timing requirements. Verify that the 2V to 6V supply voltage range aligns with the target logic family voltages. Consider the 20-SOIC footprint constraints during PCB layout planning.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74HC series of high-speed CMOS logic devices. It is functionally similar to other octal buffers like the SN74HC244 but differs in inversion polarity. The DW suffix denotes the plastic small-outline package. It serves as a standard interface component for connecting microprocessors to peripheral devices.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HC244DWR is a non-inverting alternative with identical pinout and package. SN74AHC240DWR offers faster switching speeds but may require different power supply decoupling. SN74HCT240DWR provides TTL-compatible input thresholds for 5V systems.