SN74F02NSR

Overview

The SN74F02NSR is a quadruple 2-input positive-NOR gate from the Texas Instruments SN74F series. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating free-air temperature range of 0°C to 70°C. The device features a propagation delay of up to 6.5 ns at VCC = 5 V with a 50 pF load. It provides a low-level output current of 20 mA and a high-level output current of -1 mA. The component is housed in a 14-pin Small Outline Package (SOP/NS).

Feature Summary

• Contains four independent 2-input NOR gates performing Boolean functions Y = A + B or Y = A • B.
• Provides standard TTL-compatible input and output voltage levels for digital logic interfacing.
• Features robust low-level output drive capability suitable for direct loading of multiple TTL loads.

Applications

• General-purpose digital logic circuits requiring NOR functionality.
• Data processing systems utilizing standard 5V logic families.
• Industrial control applications operating within commercial temperature ranges.

Procurement Notes

Verify that the specific orderable part number matches the required package type, as the SN74F02 family includes obsolete variants like the SOIC D package alongside active SOP NS and PDIP N options. Confirm RoHS compliance status and lead finish specifications against the latest Package Option Addendum to ensure compatibility with assembly processes and environmental regulations.

Selection Notes

Select this component when four independent 2-input NOR gates are required in a surface-mount configuration. Ensure the application environment remains within the 0°C to 70°C operating range. For military-grade requirements spanning -55°C to 125°C, consider the SN54F02 variant instead. Verify power supply stability between 4.5 V and 5.5 V to maintain specified switching characteristics.

Part Context

This device belongs to the SN74F series, known for high-speed operation compared to standard 74LS logic. The SN74F02 specifically implements NOR logic functions. While the SN74F02D package is listed as obsolete, the SN74F02NSR (SOP) and SN74F02N (PDIP) remain active production parts. The SN54F02 represents the military-qualified counterpart.

Replacement Considerations

SN74F02DR

FAQ

What is the maximum propagation delay for the SN74F02NSR?

The maximum propagation delay is 6.5 ns for tPLH and 5.3 ns for tPHL when operating at VCC = 5 V with a 50 pF load.

Does the SN74F02NSR support open-collector outputs?

No, the SN74F02NSR features standard push-pull outputs, not open-collector configurations.