MC74AC253DR2G

Overview

The MC74AC253DR2G is a dual 4-input multiplexer with 3-state outputs from the onsemi 74AC logic series. It operates within a supply voltage range of 2 V to 6 V and features a SOIC-16 surface-mount package. The device provides two independent multiplexing circuits, each selecting one of four data inputs based on binary address lines. Propagation delay is specified at 14.5 ns at 3.3 V and 10 ns at 5 V. It supports industrial operating temperatures from -40°C to +85°C and includes high-current sink and source capabilities.

Feature Summary

• Dual independent 4-to-1 multiplexing functionality
• Three-state output control for bus driving
• Wide supply voltage compatibility from 2V to 6V

Applications

• Data routing in digital communication systems
• Address decoding for memory selection
• Signal switching in test and measurement equipment

Procurement Notes

Verify the specific DR2G suffix against the manufacturer's current datasheet to confirm RoHS compliance and lead times. Ensure the SOIC-16 footprint matches the design layout. Confirm that the 74AC logic family meets the system's speed and power requirements before finalizing procurement.

Selection Notes

Select this component when dual 4:1 mux functionality with tri-state outputs is required. The 74AC series offers faster switching speeds compared to HC variants while maintaining CMOS low power consumption. Verify that the 2V to 6V operating range aligns with the target system voltage rails.

Part Context

This part belongs to the MC74AC253 series of dual 4-input multiplexers. It is the RoHS-compliant version (indicated by the 'G' suffix) of the previously discontinued MC74AC253DR2. It serves as a direct replacement for legacy non-compliant units in existing designs requiring 74AC performance levels.

Replacement Considerations

The MC74AC253DR2 is a confirmed direct substitute for the discontinued MC74AC253DR2.