74ACQ240PC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACQ240PC is an inverting octal buffer and line driver featuring 3-STATE outputs, housed in a 20-Lead Plastic Dual-In-Line (PDIP) package. It operates within a supply voltage range of 2.0V to 6.0V and supports temperatures from -40°C to +85°C. The device provides symmetrical output impedance with source/sink currents of 24 mA. Propagation delays are guaranteed at 10.5 ns maximum at 3.3V and 7.0 ns maximum at 5.0V. Quiescent supply current is limited to 40 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT Quiet Series technology for improved dynamic threshold performance and guaranteed quiet output switching.
• Features GTO output control and undershoot correction mechanisms alongside a split ground bus design.
• Provides simultaneous switching noise level guarantees and pin-to-pin skew AC performance specifications.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus oriented transmitters or receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code suffix against manufacturer documentation to confirm package type and reel configuration. Confirm that the component meets required environmental standards such as RoHS compliance before integration into final assemblies. Ensure static-sensitive handling protocols are followed during storage and installation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-density PCB layouts require reduced simultaneous switching noise. The device offers faster propagation delays compared to standard ACT240 equivalents. Verify input edge rate requirements match system signal characteristics to ensure reliable operation within specified limits.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACQ/ACTQ family utilizing Fairchild's FACT Quiet Series technology. It serves as an inverting octal buffer designed to improve PC board density through optimized switching characteristics. The PDIP variant provides through-hole mounting compatibility for legacy or specific mechanical constraints.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Standard 74AC240 devices may be considered if noise immunity requirements are less stringent. Verify pinout compatibility and electrical parameter alignment, specifically regarding quiescent current and output drive strength, before substituting.