74HCT640N,652

Buffers, Drivers, Receivers, Transceivers Overview

The 74HCT640N,652 is an octal bus transceiver manufactured by NXP USA Inc., belonging to the HCT logic family. It features eight non-inverting or inverting channels with three-state outputs, housed in a 20-pin DIP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports through-hole mounting. Designed for high-speed digital applications, it provides robust signal transmission capabilities suitable for complex electronic systems requiring reliable data routing.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent bidirectional data paths
• Three-state output capability enabling direct system bus connections
• HCT logic compatibility ensuring TTL-level input interfacing

Buffers, Drivers, Receivers, Transceivers Applications

• Computer memory modules
• Instrumentation control systems
• Industrial process control units

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through official manufacturer channels due to obsolete status. Confirm RoHS compliance details via current datasheets. Check for alternative sourcing options as production may be discontinued. Ensure packaging integrity matches original specifications for legacy system maintenance.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring octal bus isolation with three-state control. Consider HCT speed characteristics for TTL-compatible interfaces. Evaluate DIP-20 footprint requirements against PCB layout constraints. Assess thermal dissipation needs based on operational load conditions.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74HCT series of high-speed CMOS logic devices. It serves as a critical interface component between microprocessors and peripheral devices. The NXP USA Inc. branding indicates its origin from the semiconductor division responsible for industrial logic solutions.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult official Nexperia documentation for verified substitute part numbers. Cross-reference pinouts and electrical parameters before implementation. Verify package compatibility for direct replacement scenarios.