SN74ACT244DB

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT244DB is an octal buffer and driver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V and accepts input voltages up to 5.5V. The device provides a maximum propagation delay of 9.5ns at 5V and features TTL-compatible inputs. Packaged in a 20-pin SSOP format, it is designed to enhance the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features two independent four-bit buffers with separate active-low output enable inputs for high-impedance control.
• Provides non-inverted data transfer from A inputs to Y outputs when enabled.
• Ensures high-impedance state during power-up or power-down conditions.

Buffers, Drivers, Receivers, Transceivers Applications

• LED displays
• Servers and telecommunication systems
• Switching networks

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type matches the design requirements, as the SN74ACT244 family includes multiple options such as VSSOP, SOIC, PDIP, and TSSOP. Confirm that the selected variant meets the necessary operating temperature range and environmental standards for the intended application environment before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-drive capability and fast switching speeds within standard CMOS logic families. Ensure the design accommodates the specified input voltage limits and utilizes appropriate current-limiting resistors if driving loads like LEDs directly. Verify unused inputs are tied to defined logic levels to prevent undefined operational states.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4ACT244 series of octal buffers and drivers. The 'DB' suffix specifically denotes the SSOP (Shrink Small Outline Package) with 20 pins. Other available packages in this series include DGS (VSSOP), DW (SOIC), N (PDIP), NS (SO), PW (TSSOP), and RKS (VQFN).

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements within the same family include SN74ACT244DWR (SOIC package) and SN74ACT244PWR (TSSOP package). For automotive applications, consider the SN74ACT244-Q1 variants. Ensure pin compatibility and thermal characteristics align with the existing board layout.