74FR244SCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74FR244SCX is an octal buffer and line driver featuring non-inverting logic with three-state outputs. It operates within a supply voltage range of +4.5V to +5.5V. The device provides high current drive capabilities, sourcing 15 mA and sinking 64 mA per output. Propagation delays are specified at 3.9 ns maximum under standard conditions (CL = 50 pF). It includes guaranteed pin-to-pin skew specifications for precise timing control. The component is housed in a 20-lead Small Outline Package (SOP) and functions effectively as a memory address driver or bus-oriented transmitter.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features three-state outputs suitable for driving bus lines or buffering memory address registers
• Provides high current drive capability with 64 mA sink and 15 mA source capacity
• Includes guaranteed pin-to-pin skew specifications for accurate signal timing

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitters and receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant, as the 'SC' suffix denotes the SOP package while other suffixes indicate SOIC or PDIP options. Confirm that the component meets RoHS requirements if applicable to your manufacturing standards. Check for moisture sensitivity levels and storage temperature limits to ensure proper handling during assembly. Ensure the active-low output enable inputs align with your system's control logic design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-current driving is required for bus applications. The guaranteed pin-to-pin skew makes it suitable for systems requiring precise synchronization across multiple data lines. Consider the operating temperature range of 0°C to +70°C for environmental compatibility. Evaluate the propagation delay characteristics against your system's clock speed requirements to ensure signal integrity.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74FR series, which represents Fast CMOS technology from Fairchild Semiconductor. The 74FR244 is an octal buffer designed for high-speed digital applications. It shares functional similarities with other 74-series buffers but offers enhanced current drive capabilities compared to standard logic families. The device is intended for use in complex digital systems requiring reliable data transmission.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include SN74AS244ANSR, SN74BCT244NSR, SN74F241NSR, and SN74F244NSR from Texas Instruments.