CD74ACT651EN

Overview

The CD74ACT651EN is an octal bus transceiver manufactured by Harris Corporation, belonging to the ACT logic family. It features a 24-pin DIP package and provides bidirectional data transfer with registered outputs. The device supports 3-state operation and includes inverted output polarity for signal inversion during transmission. Designed for CMOS technology, it operates within a voltage range of 4.5V to 5.5V. Key electrical characteristics include a load capacitance of 50 pF and a maximum output current of 64 mA. It functions as a single-function unit with two ports, suitable for multiplexed transmission of registered or real-time data.

Feature Summary

• Octal bus transceiver with registered output capability for stable data latching
• Bidirectional data flow support with independent control mechanisms
• Inverted output polarity providing signal inversion during transmission
• 3-state output design enabling efficient bus line sharing and isolation

Applications

• Multiplexed transmission systems requiring registered data handling
• Bidirectional bus architectures in industrial control environments
• CMOS logic interfacing applications needing signal inversion
• High-speed data routing in computer peripheral interfaces

Procurement Notes

Verify component authenticity through official Harris Corporation channels or authorized distributors. Confirm RoHS compliance status as historical records indicate non-compliance. Ensure the 24-pin DIP package matches system requirements. Check manufacturing date codes for potential obsolescence issues. Validate electrical specifications against original datasheets before integration into critical designs.

Selection Notes

Select this component when octal bidirectional transfer with registration is required. Consider the ACT family speed advantages over standard HC/HCT variants. Verify voltage compatibility with 5V CMOS systems. Evaluate package constraints for 24-pin DIP footprint availability. Assess thermal management needs given the plastic epoxy封装 material and operating temperature range.

Part Context

Part of the Harris Corporation CD74ACT series, designed for high-performance CMOS applications. The ACT family offers improved speed and drive capabilities compared to earlier HC/HCT generations. This specific model integrates bus transceiver functionality with data registration, addressing complex system synchronization needs in legacy and specialized electronic designs.

Replacement Considerations

CD74ACT651ATM: Surface mount alternative with identical functional specifications. CD74ACT651N: Alternative DIP package variant from the same manufacturer. Verify pin compatibility and electrical parameters before substitution.