SN74HCT244NSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT244NSR is an octal buffer and line driver manufactured by Texas Instruments, belonging to the HCT logic series. It features a 20-SOIC package with two independent 4-bit channels. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a maximum static current of 8 µA and a typical propagation delay of 13 ns. Output drive capability is specified at ±6 mA, supporting up to 15 LSTTL loads. The component functions as a non-inverting buffer with three-state outputs.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configured as two independent 4-bit buffers or drivers with separate output enable inputs for flexible bus management.
• Provides three-state outputs that transition to high-impedance states when enabled, facilitating direct connection to bus lines.
• Features TTL-compatible input thresholds, allowing seamless interfacing with standard TTL logic systems.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address buffering in digital storage systems
• Clock signal distribution and driving
• Bus-oriented receiver and transmitter circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'NSR' corresponds to the 20-SOIC package and tape-and-reel shipping configuration. Confirm RoHS compliance status and ensure the operating temperature range meets the -40°C to +85°C requirement for the intended environment. Cross-reference datasheet revisions to validate pinout consistency.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal data buffering with high noise immunity and low power consumption. The HCT technology ensures compatibility with CMOS and TTL interfaces. Consider the SOIC package dimensions for PCB layout constraints and verify that the ±6 mA output current suffices for the connected load capacitance and fan-out requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCT244 family of octal buffers and line drivers. It is designed to improve performance and density in memory address drivers and clock drivers. The device is widely used in industrial and commercial applications where reliable data transmission over buses is critical.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCT244DWR is a direct replacement offering identical functionality in a SOIC-20 package. SN74HCT244DBR serves as an alternative in an SSOP-20 package, requiring footprint adaptation. Verify pin compatibility before substituting.