SN74ALS253DRG4

Overview

The SN74ALS253DRG4 is a dual 4-to-1 multiplexer from the Texas Instruments ALS logic family, housed in a 16-pin SOIC package. It operates on a single power supply ranging from 4.5V to 5.5V. The device features low-level output current of 8mA and high-level output current of -0.4mA. It functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Dual independent 4-to-1 data selection capability
• Active-low output enable control
• Push-pull output structure for improved drive strength

Applications

• Data routing in digital systems
• Address decoding circuits
• Signal switching applications

Procurement Notes

Verify the specific ordering suffix 'G4' indicates lead-free construction and RoHS compliance as per Texas Instruments documentation. Confirm the package type matches the required PCB footprint. Ensure the voltage supply aligns with the specified 4.5V to 5.5V operational range for reliable performance.

Selection Notes

Select this component when dual 4-to-1 multiplexing is required within standard TTL voltage levels. The ALS series offers faster propagation delays compared to standard LS logic while maintaining lower power consumption than AS series devices. Verify that the 16-pin SOIC package fits the design constraints.

Part Context

This part belongs to the SN54/74ALS253 family of dual 4-input multiplexers. The 'ALS' designation signifies Advanced Low-power Schottky technology. The 'DRG4' suffix denotes the SOIC-16 package, tape-and-reel packaging, and lead-free/RoHS compliant manufacturing process by Texas Instruments.

Replacement Considerations

Direct substitutes include SN74ALS253DRE4 and SN74ALS253DR. Cross-family replacements like SN74LS253 or SN74F253 may require voltage level and speed adjustments.