SN74HC244PWRE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC244PWRE4 is an octal buffer and line driver featuring 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports a maximum operating temperature of 125°C. The device provides high-current outputs capable of driving up to 15 LSTTL loads, with typical propagation delay of 11ns at 5V. It consumes low power, with a maximum ICC of 80µA. The component is housed in a 20-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features 3-state outputs suitable for driving bus lines or buffering memory address registers
• Organized as two independent 4-bit buffers with separate output-enable inputs
• Provides high-current drive capability to support multiple LSTTL loads

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type, lead finish, and moisture sensitivity level. Ensure the selected variant matches the required operating temperature range and RoHS compliance status for your specific design implementation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with tri-state control. It is appropriate for applications needing to interface between different logic families or drive long PCB traces where signal integrity and bus contention management are critical requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4HC244 family of high-speed CMOS logic devices. It serves as a standard solution for expanding I/O capabilities and managing data flow in digital circuits. The PWRE4 designation indicates a specific tape-and-reel packaging format compliant with environmental standards.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HC244PWR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle high-impedance states?

When the output enable (OE) pin is high, all outputs in that bank enter a high-impedance state, effectively disconnecting them from the circuit.

What is the recommended method to ensure high-impedance during power-up?

Tie both OE pins to VCC through a pull-up resistor to ensure the outputs remain in a high-impedance state during power-up or power-down sequences.