SN74AS244ANS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS244ANS is an octal buffer and line driver from the Texas Instruments AS logic series, housed in a 20-pin SOIC package. It features non-inverting, three-state outputs controlled by low-active enable signals. The device operates within a supply voltage range of 4.5 V to 5.5 V, drawing a maximum quiescent current of 24 µA. It provides high drive capability with a low-level output current of 64 mA and a high-level output current of -15 mA. Propagation delay is specified at 6.2 ns, supporting operation across a commercial temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent unidirectional buffers or line drivers
• Three-state outputs allowing direct connection to bus structures
• Low-active output enable inputs for precise control
• High drive strength suitable for driving heavy capacitive loads

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address buffering
• Clock distribution circuits
• Bus-oriented architectures
• I/O port expansion

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'N' indicates the standard plastic SOIC-20 package variant. Confirm RoHS compliance status through official manufacturer documentation, as lead-free designations may vary by production batch. Ensure the order quantity matches the required reel or tube specifications for surface-mount assembly processes.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bipolar AS-series speed is required alongside high drive current capabilities. Compare against HC or HCT families if lower power consumption is prioritized over switching speed. Verify that the 5V-only operating range aligns with the system power rails and that the SOIC-20 footprint fits the PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AS244A family of octal buffers. It shares functional pinouts with other 74-series octal drivers but utilizes Schottky bipolar technology for faster propagation delays compared to standard TTL or CMOS counterparts. The 'N' suffix specifically denotes the SOIC package style.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AS244ADW is a compatible alternative offering identical electrical characteristics in a DW (SOIC-Wide) package.