40138K

Overview

The IDT 40138K is a dual-marked component identified as the 54FCT138AEB. It belongs to the FCT series of logic devices, specifically functioning as a Fast CMOS 1-of-8 decoder with enable inputs. The device utilizes CMOS technology and provides inverted outputs. It is designed for high-speed digital signal processing applications requiring address decoding or data routing within electronic systems.

Feature Summary

• Functions as a 1-of-8 decoder with enable capabilities
• Utilizes Fast CMOS technology for high-speed operation
• Provides inverted output signals

Applications

• Digital address decoding circuits
• Data routing in communication systems
• Control logic in embedded systems

Procurement Notes

Verify the specific marking code 54FCT138AEB on the component body to confirm identity. Ensure compatibility with existing system voltage levels and interface requirements. Check for RoHS compliance status if required by project specifications. Confirm package type matches design constraints before procurement.

Selection Notes

Select this component when a high-speed 1-of-8 decoding function is required within a Fast CMOS ecosystem. Consider the inverted output characteristic during circuit design. Evaluate thermal performance and power consumption relative to system constraints. Verify pinout compatibility with existing PCB layouts.

Part Context

This part is manufactured by Integrated Device Technology Inc, which has been acquired by Renesas Electronics Corporation. The 40138K represents a specific variant within the broader FCT logic family, offering specialized decoding functionality. It serves as a critical component in digital logic designs requiring precise signal selection and routing.

Replacement Considerations

Compatible substitutes include other 54FCT138 variants from IDT/Renesas. Cross-reference with equivalent parts from other manufacturers offering similar Fast CMOS decoding functions. Verify electrical characteristics and pin compatibility before substitution.