74VHC00SJX NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74VHC00SJX is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in a 14-SOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The 74VHC series operates across a 2V to 5.5V supply voltage range and is suitable for general-purpose logic applications requiring low quiescent current and moderate propagation delay characteristics.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 5.5V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	8mA, 8mA
Max Propagation Delay @ 5V, 50pF	7.5ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.209", 5.30mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74VHC00SJX is determined by the following critical parameters:

Logic function: 4-channel 2-input NAND gate
Supply voltage range: 2V ~ 5.5V minimum compatibility
Output current capability: 8mA minimum for both high and low states
Quiescent current: 2 µA maximum
Propagation delay: 7.5ns @ 5V, 50pF maximum
Mounting type: Surface mount only
Package compatibility: 14-pin SOIC variants with equivalent pinout

The 74AHC00 series from Texas Instruments and Nexperia provides direct functional equivalence with extended operating temperature ranges and active product status. All substitute parts maintain identical logic specifications and electrical performance within the specified parameters.

Parameter Comparison

Parameter	74VHC00SJX (onsemi)	SN74AHC00NSR (TI)	74AHC00D,118 (Nexperia)	SN74AHC00D (TI)	SN74AHC00DR (TI)	SN74AHC00QDRQ1 (TI)
Logic Type	NAND Gate	NAND Gate	NAND Gate	NAND Gate	NAND Gate	NAND Gate
Number of Circuits	4	4	4	4	4	4
Number of Inputs	2	2	2	2	2	2
Voltage - Supply	2V ~ 5.5V	2V ~ 5.5V	2V ~ 5.5V	2V ~ 5.5V	2V ~ 5.5V	2V ~ 5.5V
Current - Quiescent (Max)	2 µA	2 µA	2 µA	2 µA	2 µA	2 µA
Current - Output High, Low	8mA, 8mA	8mA, 8mA	8mA, 8mA	8mA, 8mA	8mA, 8mA	8mA, 8mA
Max Propagation Delay @ 5V, 50pF	7.5ns	7.5ns	7.5ns	7.5ns	7.5ns	7.5ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SOIC (0.209", 5.30mm)	14-SOIC (0.209", 5.30mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Discontinued at DiGi Electronics	Active	Active
Grade	Standard	Standard	Standard	Standard	Standard	Automotive (AEC-Q100)

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

SN74AHC00NSR and SN74AHC00DR from Texas Instruments are the preferred substitutes. Both maintain active product status with extended operating temperature range (-40°C to 125°C) compared to the original 74VHC00SJX. SN74AHC00NSR is supplied in tape and reel packaging, while SN74AHC00DR offers the same functionality with identical electrical specifications. Both are ROHS3 compliant and carry unlimited moisture sensitivity rating.

Automotive-Grade Alternative:

SN74AHC00QDRQ1 provides automotive-grade qualification (AEC-Q100) for applications requiring automotive reliability standards. This part maintains all electrical equivalence while offering enhanced qualification documentation.

Secondary Substitute (Limited Availability):

74AHC00D,118 from Nexperia USA Inc. provides functional equivalence with active product status. Note the package width difference (0.154" versus 0.209") requires PCB layout verification for mechanical compatibility.

Discontinued Alternative:

SN74AHC00D is discontinued at DiGi Electronics but remains available through alternative distribution channels. Use only when other active alternatives are unavailable.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74VHC00SJX with any 74AHC00 variant?

A: All listed 74AHC00 variants are functionally equivalent based on logic type, circuit count, input configuration, and electrical performance specifications. However, package width differences must be verified against PCB layout constraints before substitution.

Q: What is the difference between the 14-SOIC (0.209", 5.30mm) and 14-SOIC (0.154", 3.90mm) packages?

A: Both are 14-pin SOIC packages with identical pinout and electrical function. The difference is physical width: 5.30mm versus 3.90mm. PCB footprints must match the specific package width. Verify your design uses the correct footprint before ordering.

Q: Why does the 74VHC00SJX have a lower maximum operating temperature than the 74AHC00 substitutes?

A: The 74VHC00SJX operates to 85°C maximum, while 74AHC00 variants operate to 125°C. This is a design characteristic difference between the VHC and AHC series. For applications within the 74VHC00SJX temperature range, both are equivalent.

Q: Is SN74AHC00QDRQ1 suitable for non-automotive applications?

A: Yes. SN74AHC00QDRQ1 is automotive-qualified but functionally identical to standard 74AHC00 parts. It can be used in any application requiring the specified electrical characteristics.

Q: What packaging options are available for substitutes?

A: SN74AHC00NSR is supplied in tape and reel. SN74AHC00D is supplied in tube. SN74AHC00DR and SN74AHC00QDRQ1 are supplied in tape and reel. Verify packaging requirements for your procurement and assembly process.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), matching the original 74VHC00SJX compliance status.

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