SN74ACT244NS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT244NS is an octal buffer and line driver manufactured by Texas Instruments, belonging to the ACT logic series. It features eight non-inverting inputs and outputs with three-state capability, housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V, supporting TTL-compatible inputs. Key electrical parameters include a maximum propagation delay of 9 ns at 5 V, output currents of ±24 mA, and a static current of 4 µA. It functions across a temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configured as two independent four-bit buffers or drivers, each controlled by a separate output enable (OE) input for flexible bus management.
• Provides high-density performance suitable for memory address drivers, clock drivers, and bidirectional bus-oriented receivers and transmitters.
• Ensures high-impedance states during power-up or power-down conditions when the OE pin is pulled high, preventing unintended bus loading.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers in computer systems
• Clock distribution networks
• Bidirectional bus-oriented receivers and transmitters

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm package type and environmental compliance. Confirm availability status as some variants may be discontinued or subject to obsolescence notices. Ensure the ordering part number matches the required lead time and packaging format for production integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-speed signal buffering with strong drive capabilities. The ACT series offers a balance of speed and low power consumption compared to older logic families. Verify that the system voltage aligns with the 4.5 V to 5.5 V operating range and that thermal constraints fit within the commercial grade temperature limits.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the broader SNx4ACT244 family of octal buffers and drivers. It shares functional similarities with other members like the SN74ACT244DW and SN74ACT244PWR, differing primarily in package style and manufacturing revision. The ACT series represents an advancement over standard 74LS logic, offering faster switching speeds while maintaining CMOS power efficiency.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include SN74ACT244DW, SN74ACT244PWR, and SN74ACT244DWRG4. These alternatives share identical logical functionality and pinouts but differ in package form factor such as SOIC, TSSOP, or VSSOP. Verify mechanical dimensions and thermal characteristics before substitution.