MC74HC240ADWR2G

Overview

The MC74HC240ADWR2G is an octal 3-state inverting buffer, line driver, and line receiver manufactured by onsemi. It utilizes high-performance silicon-gate CMOS technology and operates within a DC supply voltage range of 2.0 to 6.0 V. The device features two active-low output enables and provides drive capability for 15 LSTTL loads. It is housed in a SOIC-20 wide package (DW suffix) with a tape and reel shipping configuration.

Feature Summary

• Octal 3-state inverting buffer functionality with dual active-low output enables
• Direct interface compatibility with CMOS, NMOS, and TTL logic families
• High noise immunity characteristics inherent to CMOS devices
• Pb-free, halogen-free construction compliant with RoHS standards

Applications

• Memory address drivers
• Clock drivers
• Sub-oriented systems requiring bus isolation

Procurement Notes

Verify the specific ordering suffix 'DWR2G' to confirm the SOIC-20 Wide package and tape and reel packaging format. Ensure the procurement specification matches the required operating temperature range and electrical characteristics defined in the official datasheet.

Selection Notes

Select this component when an octal inverting buffer with 3-state control is required. It serves as a pin-compatible alternative to LS240 devices while offering CMOS input compatibility. Verify that the system voltage falls within the 2.0 V to 6.0 V operating range.

Part Context

This part belongs to the HC240A series of octal buffers. It shares identical pinouts with LS240 devices but utilizes CMOS technology. The device is functionally similar to the HC244A, differing primarily in inversion polarity. It is designed for general-purpose digital buffering applications.

Replacement Considerations

MC74HC240ADWR2G-Q