74ACT240MTC

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ACT240MTC is an octal buffer and line driver featuring inverting 3-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V. The device provides high drive capability with output currents of -24 mA for high level and 24 mA for low level. Static current is specified at 4 uA, while operating power consumption reaches 40 uA. Propagation delay is 8.5 ns at 5 V. It utilizes a TSSOP-20 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration designed for memory address driving and bus-oriented transmission
• Inverting 3-state outputs enable direct connection to bus lines without additional drivers
• TTL-compatible inputs ensure compatibility with standard logic families
• Reduced ICC and IOZ characteristics improve printed circuit board density

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock signal distribution
• Bus oriented transmitters and receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer designation carefully, as onsemi has integrated Fairchild Semiconductor products. Confirm that the specific part number corresponds to the intended legacy or current production version. Ensure the TSSOP-20 package matches the target footprint requirements. Check RoHS compliance status against current environmental regulations before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal inverting buffer with 3-state control is required for 5V logic systems. The ACT series offers faster propagation delays compared to standard HC or HCT families. Verify that the 24 mA drive current meets the load requirements of the connected bus lines. Ensure the input voltage levels are compatible with the driving source logic family.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ACT logic family, which combines the speed of AC technology with TTL-compatible inputs. It serves as an octal buffer and line driver, distinct from non-inverting variants like the 74ACT244. The MTC suffix indicates the TSSOP-20 surface-mount package format used for compact circuit board designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Equivalent parts include MC74ACT240DWCR2 from NXP/Motorola. Other manufacturers such as STMicroelectronics offer the 74ACT240. Verify pinout compatibility and electrical specifications before substitution.