DM74ALS125M

Overview

The DM74ALS125M is a quad 3-STATE buffer manufactured by onsemi, housed in a 14-lead Small Outline Integrated Circuit (SOIC) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of 0°C to +70°C. The device features non-inverting buffers with high-level output current of -15 mA and low-level output current of 24 mA. Propagation delay times are specified between 0 ns and 31 ns depending on the transition direction.

Feature Summary

• Contains four independent non-inverting buffer gates with 3-STATE output capability
• Maintains outputs in high impedance state during power supply ramp-up or ramp-down to eliminate bus glitching
• Disable time is shorter than enable time to prevent common bus conflicts

Applications

• Bus-oriented communications systems
• Clock distribution circuits
• Data acquisition systems requiring isolated signal buffering

Procurement Notes

Verify the specific ordering suffix 'M' corresponds to the SOIC-14 package configuration required for your design. Confirm that the component meets RoHS compliance standards if applicable to your manufacturing process. Check for availability as this series may be subject to discontinuation notices from the manufacturer.

Selection Notes

Select this component when a quad buffer with tri-state control is needed for ALS logic families. Ensure the load conditions match the specified 50 pF capacitance and 500 Ohm resistance for accurate timing performance. Verify that the input voltage levels align with the defined VIH and VIL thresholds for reliable operation.

Part Context

This part belongs to the 74ALS logic family, known for advanced low-power oxide-isolated ion-implanted Schottky technology. It is functionally and pin-compatible with the 74LS counterpart, allowing for potential upgrades in speed and power consumption while maintaining existing board layouts.

Replacement Considerations

The DM74ALS125N serves as a dual-in-line package alternative within the same functional specification.