MC74ACT244DW

Overview

The MC74ACT244DW is an octal buffer and line driver from the onsemi AC logic family, housed in a 20-pin SOIC surface-mount package. It features non-inverting inputs with three-state outputs capable of sourcing or sinking 24 mA. The device operates within a supply voltage range of 3 V to 6 V, supporting low static current consumption of 80 µA. It ensures signal integrity with a maximum propagation delay of 10 ns at typical loads and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Octal configuration providing eight independent buffering channels for high-density PCB designs.
• Three-state output architecture enables direct connection to bus-oriented transmission lines.
• TTL-compatible input thresholds facilitate interfacing with standard logic families.

Applications

• Memory address drivers
• Clock signal distribution
• Bus-oriented transmitter and receiver circuits

Procurement Notes

Verify the specific suffix 'DW' confirms the SOIC-20 plastic package variant. Confirm RoHS compliance status through official datasheets as manufacturing revisions may alter material declarations. Ensure the ordering code matches the required tape-and-reel or tube packaging format specified by the manufacturer's current production data.

Selection Notes

Select this component when designing systems requiring octal buffering with TTL-compatible input levels. The wide 3 V to 6 V operating range offers flexibility for various power supply architectures. Verify that the 24 mA drive capability meets the load requirements of the connected bus lines or registers without exceeding thermal limits.

Part Context

This part belongs to the MC74AC/ACT series of CMOS logic devices designed for improved board density. It serves as a digital buffer solution distinct from inverters or complex logic gates. The ACT variant specifically bridges performance gaps between older LS logic and faster AC technologies.

Replacement Considerations

MC74ACT244DTR2G: Same functional octal buffer but packaged in TSSOP-20 instead of SOIC-20.