DM74ALS241AWM

Overview

The DM74ALS241AWM is an octal 3-STATE bus driver manufactured by onsemi, utilizing the Advanced Low Power Schottky (ALS) process. It features two independent groups of four buffers with complementary enable gating. The device operates within a supply voltage range of 4.5V to 5.5V and supports a low-level output drive current of 24mA. Switching characteristics are specified into a 500Ω load and 50pF capacitance. Propagation delay times range from 2ns to 11ns depending on the signal transition direction. The component is housed in a 20-Lead Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Complementary enable gating for flexible bus interface implementation
• Maintains high impedance state during power supply ramp-up or ramp-down to eliminate bus glitching
• Pnp input design reduces input loading compared to standard counterparts
• Switching response specifications guaranteed over full temperature and supply voltage ranges

Applications

• Memory system bus interfaces
• Microprocessor system data routing
• Communication systems bidirectional data buses

Procurement Notes

Verify the specific ordering suffix 'W' against official manufacturer documentation to confirm package dimensions and tape/reel specifications. Confirm RoHS compliance status through the latest datasheet revision. Ensure the component meets the required operating temperature range of 0°C to +70°C for the intended application environment before finalizing procurement.

Selection Notes

Select this component when designing systems requiring octal bus drivers with complementary enable control. It serves as a functional and pin-compatible alternative to DM74LS series devices while offering improved switching performance and lower power dissipation. Consider the 24mA low-level output current capability for driving moderate loads without external buffering.

Part Context

This part belongs to the DM74ALS240A/241A family of Octal 3-STATE Bus Drivers. The DM74ALS241AWM specifically denotes the version with complementary enable gating, whereas the DM74ALS240A variant uses symmetric enabling logic. Both share identical physical packages and electrical characteristics, differing only in the polarity of the enable inputs.

Replacement Considerations

SN74ALS241CN

FAQ

How does the DM74ALS241AWM handle power-up conditions?

The 3-STATE circuitry maintains buffer outputs in a high impedance state during power supply ramp-up or ramp-down, which eliminates bus glitching problems typically associated with power transitions.

What distinguishes the DM74ALS241AWM from the DM74ALS240A?

The primary distinction lies in the enable gating logic; the DM74ALS241AWM utilizes complementary enable gating, while the DM74ALS240A employs symmetric enable gating for its respective output groups.