74HC640D,652

Buffers, Drivers, Receivers, Transceivers Overview

The NXP 74HC640D,652 is an octal bus transceiver featuring inverting three-state outputs. It operates within a supply voltage range of 2 V to 6 V and supports bidirectional data transfer. The device utilizes a 20-pin Small Outline Package (SOP) for surface-mount installation. It functions as a high-speed silicon-gate CMOS component compatible with low-power Schottky TTL logic levels.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional bus interface capability
• Inverting three-state output configuration
• Bus driver output capability

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional bus interfacing
• Data transmission between buses
• Memory mapping applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 652 against official NXP documentation to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing SOP-20 footprints on the target PCB layout before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with inverted outputs and three-state control is required. It serves as a direct replacement for similar LSTTL-compatible devices in systems needing bidirectional data flow management across multiple lines simultaneously.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by NXP Semiconductors. The series is designed to be pin-compatible with low-power Schottky TTL standards, ensuring broad interoperability in mixed-technology digital circuits.