SN74LVC244APWR

The Texas Instruments SN74LVC244APWR is an octal buffer/line driver with 3-state outputs, engineered for low-voltage CMOS operation. It belongs to the LVC logic family, supporting a typical supply voltage range of 1.65 V to 3.6 V with 5 V tolerant inputs—even when VCC is removed—which simplifies interfacing between modern low-voltage controllers and legacy 5 V peripherals. The device organizes eight channels into two independent 4-bit sections, each controlled by a dedicated output-enable pin, and delivers balanced propagation delays with high ±24 mA drive capability. Housed in a surface-mount SOP package, it provides a compact footprint well-suited for automated assembly in space-constrained designs.

This buffer finds extensive use in bus isolation, memory address driving, and signal fan-out applications across industrial control systems, aerospace avionics, and defense communications equipment where data integrity and noise immunity are critical. Design engineers often integrate the SN74LVC244APWR to drive high-capacitance backplanes, isolate subsystems on shared data buses, or condition signals between different voltage domains. From a procurement standpoint, this standard LVC-series device covers industrial temperature ranges (commonly –40 °C to +85 °C or +125 °C, depending on test conditions) but lacks the screening or packaging required for full military/aerospace qualification; for designs under MIL or QML flow-down, alternative hi-rel logic families or additional screening may be necessary. The part remains in active production, reducing immediate obsolescence concerns.