MC74ACT125DTR2

Overview

The MC74ACT125DTR2G is a quad 3-state buffer manufactured by onsemi in the ACT logic series. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs. The device provides four non-inverting outputs with low-impedance drive capabilities, sourcing and sinking up to 24 mA. It utilizes a TSSOP-14 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Features four independent non-inverting buffers with three-state output control
• Includes TTL-compatible input thresholds for direct interfacing with TTL logic systems
• Provides high-drive capability with symmetric source and sink currents

Applications

• High-performance bus-oriented architectures requiring signal buffering
• Clock distribution networks utilizing low-enable control
• TTL-to-CMOS level translation interfaces

Procurement Notes

Verify the specific ordering suffix 'DTR2G' corresponds to the TSSOP-14 package configuration. Confirm that the component meets RoHS compliance standards as indicated by the manufacturer's designation. Ensure the procurement documentation matches the exact part number to avoid confusion with similar variants in the AC or DG series.

Selection Notes

Select this component when designing circuits that require robust signal buffering between TTL and CMOS domains. The ACT series offers superior speed compared to standard HC devices while maintaining compatibility with legacy TTL input levels. Consider the TSSOP-14 package constraints regarding thermal dissipation and board space availability during layout planning.

Part Context

This device belongs to the MC74ACT family of high-speed silicon-gate CMOS logic products. It shares functional similarities with the MC74AC125 but distinguishes itself through optimized input threshold characteristics tailored for TTL environments. The product line emphasizes performance improvements over earlier generations while preserving pinout compatibility.

Replacement Considerations

MC74ACT125DG

FAQ

What is the maximum quiescent supply current?

The maximum quiescent supply current is 80 µA at 5.5 V.

Does the device support bidirectional data flow?

No, the MC74ACT125DTR2G consists of unidirectional buffers with non-inverting logic.