CY74FCT16646ATPVC

Overview

The CY74FCT16646ATPVC is a Fast CMOS octal bus transceiver and register manufactured by Texas Instruments. It features bidirectional data flow with three-state outputs, allowing connection to bus lines while preventing electrical interference when disconnected. The device operates within a supply voltage range of 4.75V to 5.25V and supports an operating temperature range from -40°C to +85°C. It is housed in a 56-pin SSOP package.

Feature Summary

• Bidirectional data transfer capability between two independent 8-bit buses
• Integrated storage registers for latching data at the output ports
• Three-state outputs designed for direct bus line interfacing
• Fast CMOS technology ensuring low power consumption and high speed

Applications

• Memory mapping circuits requiring address and data buffering
• Clock drivers for synchronous data transmission systems
• Bus-oriented architectures in industrial control systems
• Portable instrumentation utilizing battery-powered logic circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure packaging integrity matches specified reel quantities to prevent handling damage during surface mount placement processes.

Selection Notes

Select this component for designs requiring simultaneous data latching and bidirectional transfer on wide buses. Compare propagation delays against system clock requirements. Verify that the 56-SSOP footprint aligns with existing PCB layout constraints and thermal management strategies for the target application environment.

Part Context

This part belongs to the Texas Instruments 74FCT logic family, which utilizes Fast CMOS technology to bridge the performance gap between standard TTL and advanced CMOS families. The FCT series is characterized by high-speed operation compatible with TTL loads while maintaining lower power dissipation than older bipolar technologies.

Replacement Considerations

Check for equivalent parts such as the IDT74FCT16646ETPAB. Verify pin compatibility and electrical specifications before substitution.