MC74AC125DT

Overview

The MC74AC125DT is a quad buffer and line driver from the 74AC logic family, manufactured by onsemi. It features four non-inverting channels with three-state outputs housed in a 14-SOIC package. The device operates within a supply voltage range of 2 V to 6 V. Key electrical parameters include a high-level output current of -24 mA and a low-level output current of 24 mA. Quiescent current is typically 8 µA, while operating power consumption reaches 80 µA. Propagation delay is specified at 9 ns at 3.3 V and 7 ns at 5 V. The component supports surface-mount installation and functions reliably across an industrial temperature range of -40 °C to +85 °C.

Feature Summary

• Provides four independent non-inverting buffer channels for signal conditioning
• Features three-state outputs suitable for bus-oriented applications
• Operates with a wide supply voltage range from 2 V to 6 V
• Delivers high drive capability with 24 mA source and sink currents

Applications

• Bus-oriented data transmission systems
• Clock buffering and distribution networks
• Interface circuits between microprocessors and peripheral devices
• Memory address and data line drivers

Procurement Notes

Verify the specific suffix 'DT' corresponds to the 14-SOIC package configuration and tape-and-reel or tube packaging as required by your assembly process. Confirm that the active status aligns with long-term production availability needs. Ensure compatibility with standard 74AC logic voltage levels and check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when designing systems requiring quad buffering with high-speed performance and wide voltage flexibility. The 74AC series offers faster switching speeds compared to standard 74LS logic while maintaining CMOS low-power characteristics. Consider the 24 mA output drive strength for driving moderate capacitive loads directly. Verify that the 14-SOIC footprint fits the available board space and thermal management requirements for the target application environment.

Part Context

This part belongs to the MC74AC125 series of quad buffers with three-state outputs. It is functionally compatible with other industry-standard 74AC125 devices but adheres to onsemi's specific manufacturing specifications. The AC logic family represents a high-speed CMOS technology optimized for performance-critical digital designs. It serves as a fundamental building block for creating robust digital interfaces and signal routing architectures in electronic systems.

Replacement Considerations

Cross-reference with other manufacturers' 74AC125 equivalents such as SN74AC125 or CD74AC125 for pin-compatible alternatives. Verify that substitute parts maintain identical propagation delays and output drive capabilities. Check if alternative packages like TSSOP-14 are acceptable if SOIC-14 is unavailable. Ensure replacement components support the same 2 V to 6 V operating voltage range.