N74F786D,623

Specialty Logic Overview

The N74F786D,623 is a 4-bit asynchronous bus arbiter manufactured by NXP USA Inc. in a 16-SO package. It arbitrates between four asynchronous inputs on a first-come, first-served basis with separate grant outputs and a common enable pin. The device includes an onboard 4-input AND gate. Typical propagation delay is 6.6ns, with a typical supply current of 55mA. Operating voltage ranges from 4.5V to 5.5V.

Specialty Logic Feature Summary

• Arbitrates between four asynchronous request inputs using a first-come, first-served priority scheme.
• Provides separate active-low bus grant outputs for each input, enabled by a common control pin.
• Integrates a standalone 4-input AND gate accessible via dedicated pins.
• Designed to prevent metastable conditions and output glitches during simultaneous request contention.

Specialty Logic Applications

• High-speed real-time arbitration systems
• Bus controller logic circuits
• Digital system resource management

Specialty Logic Procurement Notes

Verify the specific suffix '623' against official documentation to confirm the commercial temperature range (0°C to +70°C) and SOIC packaging. Confirm RoHS compliance status as indicated in manufacturer records. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Specialty Logic Selection Notes

Select this component for applications requiring deterministic arbitration of up to four asynchronous signals without inherent fixed priority. Ensure the design accommodates the 55mA typical supply current and utilizes the common enable pin for output control. Verify that the 16-SO package dimensions fit the target PCB layout constraints.

Specialty Logic Part Context

This part belongs to the 74F series of high-speed CMOS logic devices originally developed by Philips Semiconductors. The N74F786 specifically addresses bus arbitration needs within this family, offering metastable-free operation for reliable signal handling in complex digital environments.

Specialty Logic Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.