74LCX2244MTCX

Overview

The onsemi 74LCX2244MTCX is an octal buffer and line driver belonging to the 74LCX logic family. It features eight non-inverting inputs with three-state outputs, housed in a 20-pin TSSOP surface-mount package. The device operates within a supply voltage range of 2.3 V to 3.6 V. Key electrical parameters include a maximum static current of 10 µA and output drive capabilities of -12 mA for high-level and 12 mA for low-level states. Propagation delays are specified at 8.5 ns at 2.7 V and 7.5 ns at 3.3 V.

Feature Summary

• Provides octal buffering and line driving functionality with non-inverting signal paths.
• Features three-state outputs allowing direct connection to bus-oriented systems.
• Supports low-voltage operation compatible with 3.3 V CMOS and NMOS memory addressing.

Applications

• Memory address buffering for consumer electronics
• Clock distribution and buffering in portable devices
• Driving capacitive loads in battery-powered systems

Procurement Notes

Verify the specific suffix 'MTCX' against official datasheets to confirm the TSSOP-20 package and tape-and-reel orientation. Ensure compatibility with RoHS directives by checking the manufacturer's material declaration. Confirm that the 2.3 V minimum operating voltage aligns with your system's power rails, as this differs from standard 3.3 V tolerant variants.

Selection Notes

Select this component when designing circuits requiring octal buffering with low quiescent current and moderate drive strength. The 7.5 ns propagation delay at 3.3 V suits general-purpose digital applications. Verify that the 12 mA output current meets load requirements, as higher drive currents may necessitate AC or LVC series alternatives.

Part Context

This part belongs to the 74LCX2244 series, which offers enhanced performance over standard LCX buffers. It is designed for low-voltage applications where power consumption is critical. The TSSOP-20 package provides a compact footprint suitable for space-constrained printed circuit board layouts in modern electronic devices.

Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided source material.