CY54FCT240ATDMB

Overview

The CY54FCT240ATDMB is an octal buffer and line driver manufactured by Texas Instruments, belonging to the FCT logic family. It features inverted outputs with three-state capability, allowing for effective bus management in high-speed digital systems. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports unidirectional data flow across two independent four-bit sections. Designed for robust performance, it accommodates loads up to 50 pF and functions reliably across an extended industrial temperature range from -55°C to 125°C.

Feature Summary

• Provides eight buffered outputs with inversion and three-state control for flexible bus interfacing
• Supports live insertion through power-off disable functionality to protect connected circuitry
• Integrates series output resistors to minimize signal reflections and improve signal integrity

Applications

• High-speed bidirectional bus architectures requiring controlled impedance
• Memory mapping circuits utilizing active pull-up or pull-down termination
• Clock distribution networks demanding low skew and high drive capability

Procurement Notes

Verify the specific package designation against official datasheets, as suffixes indicate distinct physical footprints. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when designing systems that require fast CMOS technology with inherent series resistance for improved signal quality. Consider the extended temperature range for harsh environments. Evaluate pin compatibility if replacing legacy parts from other manufacturers within the same logic family architecture.

Part Context

This part belongs to the broader FCT (Fast CMOS Technology) portfolio acquired by Texas Instruments from Cypress Semiconductor. The CY54 prefix typically denotes military-grade or extended temperature variants compared to commercial CY74 counterparts. These devices are engineered to bridge the performance gap between standard TTL and advanced CMOS technologies.

Replacement Considerations

CY74FCT240ATDMB