74AC244SC

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74AC244SC is an octal bus driver belonging to the AC series of CMOS logic devices. It features two functional blocks, each handling four bits with true output polarity. The component utilizes a 20-pin Plastic Dual Small Outline (PDSO20) package with gull-wing terminals. It operates on a nominal supply voltage of 5 V and supports three-state outputs for effective bus management. Designed for commercial temperature ranges, it functions between -40 °C and +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides non-inverting buffering for digital signals via dedicated enable gates
• Supports high-speed data transfer using advanced CMOS technology
• Offers flexible configuration as two independent 4-bit or one 8-bit buffer

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address and data bus drivers in computing systems
• Clock distribution buffers for synchronous circuits
• I/O port expansion in microprocessor-based designs

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'SC' against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Ensure the device meets the required operating temperature range for your specific application environment before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a high-speed, low-power octal buffer is required for 5V logic systems. Consider the PDSO20 surface-mount package for space-constrained PCB layouts. Verify that the input voltage levels are compatible with the driving source within the specified AC series specifications.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely used 74AC logic family, known for speed comparable to Schottky TTL but with lower power consumption. The 244 variant specifically provides unidirectional buffering with tri-state control, distinguishing it from transceivers like the 245 which support bidirectional data flow.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Equivalent parts include the NXP 74AC244D and ON Semiconductor variants. Verify that substitute packages match the 20-pin SOP footprint and that electrical characteristics align with the original AC series specifications.