SN74HC244PWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC244PWG4 is an octal buffer and line driver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports a wide operating temperature range from -40°C to 125°C. The device features high-current outputs capable of driving up to 15 LSTTL loads, with typical propagation delays of 11ns at 5V. It consumes low power, with a maximum ICC of 80µA. Packaged in a 20-pin TSSOP, it includes two independent 4-bit buffers with separate output-enable inputs for bus-oriented applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides tri-state outputs suitable for driving bus lines or buffering memory address registers
• Features high-current outputs designed to drive multiple LSTTL loads directly
• Organized as two independent 4-bit buffers with separate output-enable controls

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status according to the manufacturer's current documentation. Confirm the package type matches the required PCB footprint. Ensure the operating temperature range meets the environmental requirements of the target application before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with high drive capability and low power consumption. It is suitable for applications needing to interface between different logic families or drive long PCB traces. Consider the 3-state functionality for bus sharing applications where multiple devices connect to a common data line.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4HC244 family of octal buffers and line drivers. It is designed to improve performance and density in 3-state memory address drivers, clock drivers, and bus-oriented receivers. The HC series utilizes standard CMOS technology, offering compatibility with various digital logic systems while maintaining low static power dissipation.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HC244PWR

Buffers, Drivers, Receivers, Transceivers FAQ

How are the outputs controlled?

The device contains two 4-bit buffers, each with a separate output-enable (OE) input. When OE is low, the corresponding four outputs are enabled; when OE is high, they enter a high-impedance state.

What is the recommended handling for unused inputs?

Unused inputs must not be left floating. They should be tied to VCC or GND to ensure proper operation and prevent excessive power consumption or oscillations.