MC74HCT125ADTG

Overview

The MC74HCT125ADTG is a quad 3-state noninverting buffer manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V and features LSTTL-compatible inputs. The device provides four separate active-low output enables, allowing independent control of each buffer channel. Designed for bus-oriented systems, it interfaces directly with CMOS, NMOS, and TTL loads while maintaining high noise immunity characteristic of CMOS technology.

Feature Summary

• Quad configuration with individual active-low output enables
• LSTTL compatible input structure for broad interfacing
• High noise immunity inherent to CMOS design
• Direct interface capability with standard logic families

Applications

• 3-state memory address drivers
• Clock signal distribution in bus systems
• Bus-oriented data transmission lines
• Interface bridging between different logic families

Procurement Notes

Verify the specific suffix ADTG against the manufacturer datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status and check for automotive qualification prefixes if required for your application environment. Ensure the ordering part number matches the exact pinout and electrical characteristics defined in the official component documentation.

Selection Notes

Select this component when a quad buffer with independent tri-state control is required for bus architectures. The HCT series ensures compatibility with standard TTL logic levels while offering CMOS drive capabilities. Verify that the operating voltage range aligns with the system power supply and that the input current requirements meet the driving source specifications.

Part Context

This component belongs to the MC74HCT125A family of quad buffers. It shares identical pinouts with LS125 equivalents but utilizes HCT technology for improved CMOS compatibility. The ADTG suffix typically denotes a TSSOP-14 surface-mount package variant within the broader product line designed for space-constrained printed circuit board layouts.

Replacement Considerations

Compatible substitutes include other MC74HCT125 variants with matching pinouts such as MC74HCT125ADG or MC74HCT125ADR2G. Cross-reference with industry-standard LS125 equivalents if pin compatibility is the primary constraint, ensuring voltage and drive current specifications remain within acceptable limits.