SN74HC244DWRG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC244DWRG4 is an octal buffer and line driver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V. The device provides high-current outputs capable of driving up to 15 LSTTL loads. Key electrical parameters include a maximum static current (ICC) of 80µA at 6V and typical propagation delay (tpd) of 11ns. Output drive capability is specified as ±6mA at 5V with low input current of 1µA maximum.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal buffers organized as two independent 4-bit sections with separate output-enable inputs
• Three-state outputs designed for bus-oriented receivers and transmitters
• High-current outputs suitable for driving memory address registers and bus lines

Buffers, Drivers, Receivers, Transceivers Applications

• Servers
• LED Displays
• Network Switches
• Telecom Infrastructure
• Motor Drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant matches the required PCB footprint, as the DW suffix indicates SOIC-20. Confirm RoHS compliance status and lead finish details against the latest manufacturer documentation. Ensure the operating temperature range aligns with system requirements, noting potential variations between industrial and extended grades.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-density bus buffering with wide voltage flexibility. The HC logic family offers balanced drive strength and low power consumption. Consider thermal resistance metrics if operating in enclosed environments. Verify that input transition times meet specifications to prevent excessive power dissipation or oscillation during operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4HC244 series of octal buffers and line drivers. It is designed to improve performance and density in 3-state memory address drivers and clock drivers. The device utilizes standard CMOS inputs and is available in multiple package options including SSOP, SOIC, PDIP, SOP, TSSOP, CDIP, and CFP.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HC244DW

Buffers, Drivers, Receivers, Transceivers FAQ

How are the outputs controlled?

Each bank of four buffers has a separate output-enable (OE) input. When OE is low, data passes from A inputs to Y outputs. When OE is high, outputs enter a high-impedance state.

What happens to unused inputs?

Unused inputs must be held at VCC or GND to ensure proper operation. Floating standard CMOS inputs can cause excessive power consumption and oscillation.