74HC244DB,118

Overview

The Nexperia 74HC244DB,118 is an octal buffer and line driver belonging to the HC logic family. It features eight non-inverting outputs with three-state capability, housed in a 20-pin SSOP package. The device operates within a supply voltage range of 2 V to 6 V. Key electrical parameters include a maximum propagation delay of 100 ns, output currents of ±7.8 mA, and a static current of 8 uA. It supports surface mount installation and functions reliably across a temperature range of -40 °C to +125 °C.

Feature Summary

• Provides eight non-inverting buffered channels for signal expansion
• Features three-state outputs to facilitate bus-oriented systems
• Operates with a wide supply voltage range from 2 V to 6 V

Applications

• Bus-oriented architectures requiring signal buffering
• Clock drivers for high-speed digital systems
• Memory address and data register buffering

Procurement Notes

Verify the specific suffix 'DB' corresponds to the SSOP-20 package configuration required for your PCB layout. Confirm that the 74HC logic family meets your system's voltage and speed requirements compared to HCT or VHC alternatives. Ensure the operating temperature range aligns with your environmental specifications before finalizing procurement orders.

Selection Notes

Select this component when an octal buffer with three-state control is needed for HC-level logic interfacing. The SSOP-20 package offers a compact solution for space-constrained designs. Consider the 100 ns propagation delay and ±7.8 mA drive capability against your circuit's timing and load requirements to ensure proper signal integrity.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Nexperia. It serves as a standard octal buffer variant within the broader 74xx logic ecosystem, providing reliable signal conditioning for various digital applications. The DB suffix specifically denotes the SSOP-20 surface-mount package format used in modern electronics manufacturing.

Replacement Considerations

The 74HC244D,118 is a direct functional equivalent available in the SOIC-20 package. For pin-compatible replacements in different packages, consider the 74HC244PW (TSSOP-20). Verify that any substitute maintains the same HC logic family characteristics and three-state output functionality.