74HC244PW/AUJ

Overview

The NXP USA Inc. 74HC244PW/AUJ is an octal buffer and line driver featuring 3-state outputs, manufactured by Nexperia B.V. It provides non-inverting buffering for digital signals and can be configured as two independent 4-bit buffers or a single 8-bit buffer. The device includes two active LOW output enable inputs (1OE and 2OE) to control data flow direction and isolation. It operates within a supply voltage range of 2.0 V to 6.0 V and supports CMOS input levels. The component utilizes a TSSOP20 package with a body width of 4.4 mm.

Feature Summary

• Features dual output enables allowing flexible configuration as two 4-bit buffers or one 8-bit buffer
• Provides high noise immunity and low power dissipation through CMOS technology
• Includes clamp diodes on inputs to facilitate interfacing with voltages exceeding VCC using current limiting resistors
• Offers robust electrostatic discharge protection compliant with JEDEC standards

Applications

• Octal bus interface applications requiring signal buffering
• Line driving tasks in mixed voltage environments
• General purpose buffering for digital logic circuits

Procurement Notes

Verify the specific ordering suffix against official Nexperia documentation to confirm package type and temperature range specifications. Ensure compatibility with system voltage requirements before integration. Confirm that the procurement channel sources genuine components directly from authorized distributors or manufacturers to avoid counterfeit parts. Review the latest datasheet revision for any updates to electrical characteristics or pin configurations prior to final design approval.

Selection Notes

Select this component when an octal buffer with 3-state capability is required for bus interfaces. It is suitable for applications needing CMOS input levels and operation across a wide supply voltage range. Consider the TSSOP20 package constraints regarding thermal management and board space. Verify that the input voltage levels match the source logic family requirements for proper signal integrity.

Part Context

This part belongs to the 74HC/HCT series of high-speed silicon-gate CMOS logic devices. It is produced by Nexperia B.V., which acquired the standard logic business from NXP Semiconductors. The 74HC244 serves as a fundamental building block for digital systems requiring signal isolation and amplification. It is widely used in consumer electronics, industrial controls, and computing equipment where reliable data transmission is critical.

Replacement Considerations

Direct replacements include the 74HCT244PW for TTL-compatible input levels. Other compatible variants within the same series may offer different package options such as SO20 or DHVQFN20. Ensure substitute parts meet the same electrical specifications and pinout compatibility.