SN74HCS02QDRQ1 Equivalent & Substitute Parts

Part Overview

The SN74HCS02QDRQ1 is a NOR Gate IC featuring 4 channels with 2 inputs per channel and Schmitt Trigger input capability. Manufactured by Texas Instruments, this logic component operates across a 2V to 6V supply voltage range and is qualified to automotive standards (AEC-Q100). The part is currently in active production status with 3208 units available in inventory.

Identifying equivalent and substitute parts is essential for supply chain continuity, design flexibility, and managing component availability across manufacturing cycles. This reference provides parametric equivalents that maintain functional and electrical compatibility.

Substiute Parts

SN74HCS02QDRQ1

Texas InstrumentsIn Stock: 3281SN74HCS02QDRQ1 Datasheet

Current PartRFQ

SN74HCS7002QDRQ1

Texas InstrumentsIn Stock: 3457SN74HCS7002QDRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HCS02QDRQ1 is determined by strict parametric matching across the following critical criteria:

Logic Function & Architecture: The substitute part must implement a 4-channel NOR gate with 2 inputs per channel and Schmitt Trigger input characteristics.

Electrical Performance: Supply voltage range (2V ~ 6V), quiescent current (2 µA maximum), output current capability (7.8mA for both high and low states), and propagation delay (12ns @ 6V, 50pF) must be identical.

Operating Conditions: Temperature range (-40°C ~ 125°C) and automotive-grade qualification (AEC-Q100) must be maintained.

Package & Form Factor: Surface mount 14-SOIC package with identical physical dimensions (0.154", 3.90mm width) is required for PCB compatibility.

Compliance & Certifications: RoHS3 compliance, MSL Level 1, and REACH unaffected status must be preserved.

The SN74HCS7002QDRQ1 meets all these criteria and qualifies as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the SN74HCS02QDRQ1 and SN74HCS7002QDRQ1 are active production components from Texas Instruments with identical electrical specifications and automotive-grade certifications. Selection between these parts should be based on inventory availability and supply chain requirements rather than technical performance differences.

The SN74HCS02QDRQ1 currently maintains 3208 units in stock, while the SN74HCS7002QDRQ1 has 3399 units available. Both parts carry AEC-Q100 qualification, ROHS3 compliance, and MSL Level 1 rating, making them suitable for automotive and industrial applications without additional qualification testing.

Frequently Asked Questions (FAQ)

Q: Can the SN74HCS7002QDRQ1 be used as a direct replacement for the SN74HCS02QDRQ1?

A: Yes. Both parts are parametrically identical across all electrical, thermal, and mechanical specifications. No circuit redesign or PCB layout modification is required for substitution.

Q: Are there any differences in pin configuration or package dimensions?

A: No. Both parts use the 14-SOIC package with identical pin assignments and physical dimensions (0.154", 3.90mm width). PCB footprints are directly compatible.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the SN74HCS02QDRQ1 and SN74HCS7002QDRQ1 carry AEC-Q100 qualification and are rated for automotive-grade applications across the -40°C to 125°C temperature range.

Q: What is the significance of the different base product numbers (74HCS02 vs. 74HCS7002)?

A: The base product numbers reflect different internal design variants within the Texas Instruments NOR gate family. Despite the different designations, both parts deliver identical functional and electrical performance for 4-channel, 2-input NOR gate applications with Schmitt Trigger inputs.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 rating. Regulatory and environmental compliance status is identical.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection should be based on current inventory levels, supplier availability, and lead time requirements. Both parts are in active production with no planned obsolescence.