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N74F646D from PHILIPS

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N74F646D

Manufacturer: PHILIPS, PHI

Octal transceiver/register, non-inverting 3-State

Partnumber Manufacturer Quantity Availability
N74F646D PHILIPS, PHI 10915 In Stock

Description and Introduction

Octal transceiver/register, non-inverting 3-State The **N74F646D** is a high-performance, octal bus transceiver and register designed for bidirectional data communication between buses. This integrated circuit (IC) combines the functionality of a transceiver and a register, making it suitable for applications requiring data buffering, storage, and signal direction control.  

Built with **Fast (F) series** logic technology, the N74F646D offers low propagation delays and high-speed operation, making it ideal for use in digital systems where timing efficiency is critical. It features **eight bidirectional data lines** with separate input and output registers, allowing for flexible data flow management. The direction of data transfer is controlled by the **Direction (DIR)** pin, while the **Output Enable (OE)** pin enables or disables the outputs.  

The device operates on a **5V power supply** and is compatible with TTL voltage levels, ensuring seamless integration into existing digital circuits. Its robust design supports **bus hold** functionality, preventing floating inputs and enhancing signal integrity.  

Common applications include **microprocessor interfacing, data storage systems, and communication buses** in industrial, automotive, and computing environments. The N74F646D is available in a **DIP (Dual In-line Package)** or **SO (Small Outline)** package, providing versatility for different PCB layouts.  

With its reliable performance and efficient design, the N74F646D remains a preferred choice for engineers working on high-speed digital systems.

Application Scenarios & Design Considerations

Octal transceiver/register, non-inverting 3-State

Alternative Part Number

  • SN74F646DW --: Same 74F646 octal transceiver/register function in a wide-body SOIC package, direct functional and pin-compatible replacement from a major logic vendor.
  • MC74F646DW --: Equivalent 74F646 octal bus transceiver/register in SOIC, matching the original F-series speed and function.
  • 74F646D --: NXP (successor to Philips) still offers the same 74F646 device under its own naming, functionally identical to the original.
  • SN74F646NT --: Same 74F646 octal bus transceiver/register function from a major logic vendor, widely available and pin-compatible in DIP package.
  • MC74F646N --: Equivalent 74F646 octal transceiver/register in the same F logic family, direct functional replacement.
  • 74F646N --: Generic 74F646 octal bus transceiver/register offering the same function and pinout as the original device.

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