SN74HC7002PWR Equivalent & Substitute Parts

Part Overview

The SN74HC7002PWR is a 4-channel NOR gate logic IC with Schmitt trigger inputs, manufactured by Texas Instruments in a 14-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates across a 2V to 6V supply voltage range with low quiescent current and is suitable for digital logic applications requiring noise immunity through Schmitt trigger functionality.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Features	Schmitt Trigger
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.3V ~ 1.2V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	22ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74HC7002PWR are classified based on electrical and mechanical parameter equivalence. All identified substitutes maintain identical functional specifications across the following critical parameters:

Logic configuration: 4-channel NOR gate with Schmitt trigger inputs
Electrical performance: 2V ~ 6V supply voltage, 2 µA quiescent current, 5.2mA output current, 22ns propagation delay
Input/output logic levels and thresholds
Operating temperature range: -40°C ~ 85°C
Package type: 14-TSSOP surface mount
Compliance certifications: ROHS3, MSL Level 1

Substitutes are differentiated by product status and packaging configuration, which affect availability and procurement logistics but do not alter functional compatibility.

Parameter Comparison

Parameter	SN74HC7002PWR	SN74HC7002PW	SN74HC7002PWT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Logic Type	NOR Gate	NOR Gate	NOR Gate
Number of Circuits	4	4	4
Number of Inputs	2	2	2
Features	Schmitt Trigger	Schmitt Trigger	Schmitt Trigger
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA	2 µA
Current - Output High, Low	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA
Input Logic Level - Low	0.3V ~ 1.2V	0.3V ~ 1.2V	0.3V ~ 1.2V
Input Logic Level - High	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	22ns	22ns	22ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Discontinued at DiGi Electronics

Engineering Selection Recommendations

SN74HC7002PW is the primary substitute for the obsolete SN74HC7002PWR. This part maintains full electrical and mechanical equivalence while offering active product status, ensuring long-term availability and supply chain stability. The SN74HC7002PW is supplied in tube packaging, which is standard for production environments.

SN74HC7002PWT provides parametric equivalence and is suitable as a secondary option where inventory permits. However, this part is discontinued at DiGi Electronics, which may limit procurement accessibility. Selection between SN74HC7002PW and SN74HC7002PWT should prioritize availability and supply chain continuity.

All three parts comply with ROHS3 regulations and carry MSL Level 1 classification, indicating unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Are SN74HC7002PWR, SN74HC7002PW, and SN74HC7002PWT electrically interchangeable?

A: Yes. All three parts are electrically identical, sharing the same logic configuration, supply voltage range, quiescent current, output current, propagation delay, and operating temperature specifications. They are direct functional equivalents.

Q: What is the difference between these part numbers?

A: The differences are limited to product status and packaging configuration. SN74HC7002PWR is obsolete; SN74HC7002PW is active with tube packaging; SN74HC7002PWT is discontinued at DiGi Electronics. Electrical performance and pin configuration are identical across all three.

Q: Can I use SN74HC7002PW as a replacement for SN74HC7002PWR in existing designs?

A: Yes. The SN74HC7002PW is a direct substitute with identical electrical specifications and the same 14-TSSOP package footprint. No design modifications are required.

Q: What does MSL Level 1 mean for these parts?

A: MSL Level 1 indicates unlimited shelf life. These parts do not require moisture baking or special storage conditions prior to soldering, simplifying inventory management and reducing handling complexity.

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

A: No. All three parts are ROHS3 compliant and carry identical REACH and ECCN classifications. Compliance status is uniform across the product line.

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