74LCX244WMX

Overview

The onsemi 74LCX244WMX is an octal buffer and line driver manufactured using low-voltage CMOS technology. It features eight non-inverting channels with three-state outputs housed in a 20-SOIC package. The device operates within a supply voltage range of 2 V to 3.6 V, drawing a maximum static current of 10 uA. It provides symmetrical output drive capabilities with high-level and low-level currents of 24 mA each. Propagation delays are specified at 7.5 ns at 2.7 V and 6.5 ns at 3.3 V. The component supports surface-mount installation and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight-channel buffering with three-state output control for bus-oriented communication systems.
• Features 5 V tolerant inputs and outputs, enabling direct interfacing between 3.3 V logic and 5 V environments.
• Delivers high-speed performance with propagation delays as low as 6.5 ns at 3.3 V operation.
• Incorporates power-down protection circuits to prevent excessive current draw during standby states.

Applications

• Memory module address and data bus drivers
• Clock distribution networks
• High-density consumer electronics

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure that the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity. Confirm RoHS compliance status and moisture sensitivity level requirements prior to finalizing orders to meet assembly standards.

Selection Notes

Select this component when designing systems requiring low-power consumption alongside high-speed signal integrity. It is suitable for applications needing interface compatibility between different voltage domains without additional level-shifting circuitry. Consider the SOIC-20 footprint constraints and thermal dissipation characteristics relative to the board layout and ambient operating conditions.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices produced by onsemi. The LCX family is engineered to offer speed performance comparable to older 5 V AC/ACT families while significantly reducing power consumption. This specific model serves as an octal buffer variant within the broader logic integrated circuit portfolio designed for modern portable and battery-operated equipment.

Replacement Considerations

Direct substitutes include the MM74HC244WMX, though it exhibits slower propagation speeds and lower drive current capabilities. Verify pinout compatibility and electrical parameter alignment before implementing any alternative components in existing designs.

FAQ

Does the 74LCX244WMX support 5 V input signals?

Yes, the device features 5 V tolerant inputs and outputs, allowing it to interface safely with 5 V logic levels while operating at lower supply voltages.

What is the maximum output current capability?

The component provides a minimum output drive current of 24 mA for both high and low states at a supply voltage of 3 V.