SN74LVC2G34DBVRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2G34DBVRG4 is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 2 elements with 1 bit per element and push-pull output configuration. This device operates across a wide supply voltage range of 1.65V to 5.5V and is housed in a SOT-23-6 surface mount package. The part is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74LVC2G34DBVRG4
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	1
Output Type	Push-Pull
Current - Output High, Low	32mA, 32mA
Voltage - Supply	1.65V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	SOT-23-6
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC2G34DBVRG4 is determined by the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 1
Output Type: Push-Pull
Current - Output High, Low: 32mA, 32mA
Voltage - Supply: 1.65V ~ 5.5V
Operating Temperature: -40°C ~ 125°C (TA)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into the following categories:

Parametric Equivalents (Texas Instruments): Parts SN74LVC2G34DBVR, SN74LVC2G34DBVT, and SN74LVC2G34DBVTG4 maintain identical electrical specifications and SOT-23-6 packaging. These differ only in product status and packaging format (Cut Tape & Digi-Reel® versus standard packaging).

Direct Manufacturer Equivalent (onsemi): Part NL27WZ16DTT1G provides identical electrical performance with equivalent 6-TSOP packaging. Operating temperature extends to -55°C minimum, providing enhanced low-temperature capability.

Upgrade Options (Nexperia USA Inc.): Parts 74LVC2G34GV,125 and 74LVC2G34GV-Q100,1 offer active product status with alternative package formats (SC-74, SOT-457, 6-TSOP). The 74LVC2G34GV-Q100,1 variant includes AEC-Q100 automotive qualification.

Alternative Package Variants (Nexperia USA Inc. & Diodes Incorporated): Parts 74LVC2G34GW,125, 74LVC2G17W6-7, and 74LVC2G34W6-7 maintain core electrical specifications while offering different surface mount packages (6-TSSOP, SOT-26). The 74LVC2G17W6-7 includes Schmitt Trigger input configuration.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Output Current (mA)	Supply Voltage	Temp Range (°C)	Package	Product Status	Inventory (Pcs)
SN74LVC2G34DBVRG4	Texas Instruments	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SOT-23-6	Discontinued	1057
SN74LVC2G34DBVR	Texas Instruments	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SOT-23-6	Active	56100
SN74LVC2G34DBVT	Texas Instruments	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SOT-23-6	Active	3300
SN74LVC2G34DBVTG4	Texas Instruments	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SOT-23-6	Discontinued	787
NL27WZ16DTT1G	onsemi	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-55 ~ 125	6-TSOP	Obsolete	20400
74LVC2G34GV,125	Nexperia USA Inc.	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SC-74, SOT-457	Active	188497
74LVC2G34GV-Q100,1	Nexperia USA Inc.	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SC-74, SOT-457	Active	2219
74LVC2G34GW,125	Nexperia USA Inc.	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	6-TSSOP, SC-88, SOT-363	Active	18741
74LVC2G17W6-7	Diodes Incorporated	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SOT-23-6	Active	14100
74LVC2G34W6-7	Diodes Incorporated	Buffer, Non-Inverting	2	32/32	1.65V ~ 5.5V	-40 ~ 125	SOT-23-6	Active	6100

Engineering Selection Recommendations

Primary Recommendation: SN74LVC2G34DBVR (Texas Instruments) is the direct parametric equivalent with active product status, identical SOT-23-6 packaging, and substantial inventory availability (56,100 pcs). This part maintains full compatibility with the discontinued SN74LVC2G34DBVRG4 and requires no design modifications.

Alternative for High-Volume Applications: 74LVC2G34GV,125 (Nexperia USA Inc.) offers active status with the largest inventory (188,497 pcs) and is suitable for applications where alternative package formats (SC-74, SOT-457) are acceptable. This part maintains all electrical specifications and ROHS3 compliance.

Automotive-Grade Selection: 74LVC2G34GV-Q100,1 (Nexperia USA Inc.) provides AEC-Q100 automotive qualification for applications requiring automotive-grade components. Electrical specifications remain identical to the original part.

Extended Temperature Range: NL27WZ16DTT1G (onsemi) extends the minimum operating temperature to -55°C, providing enhanced low-temperature performance for specialized applications. Note that this part is marked as obsolete.

Package Flexibility: 74LVC2G34GW,125 (Nexperia USA Inc.) and 74LVC2G34W6-7 (Diodes Incorporated) offer alternative surface mount packages (6-TSSOP and SOT-26 respectively) while maintaining identical electrical performance. These options are suitable when PCB layout constraints require different package footprints.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC2G34DBVR be used as a direct replacement for SN74LVC2G34DBVRG4?

A: Yes. SN74LVC2G34DBVR is a parametric equivalent with identical electrical specifications, output current ratings, supply voltage range, operating temperature, and SOT-23-6 packaging. The only difference is product status (active versus discontinued) and packaging format (Cut Tape & Digi-Reel® versus standard).

Q: What is the difference between the Texas Instruments variants (DBVR, DBVT, DBVTG4)?

A: All three variants maintain identical electrical specifications and SOT-23-6 packaging. Differences exist only in product status (DBVR and DBVT are active; DBVTG4 is discontinued) and packaging format designations. Selection should prioritize active status parts for new designs.

Q: Can I use 74LVC2G34GV,125 or 74LVC2G34GW,125 if my PCB is designed for SOT-23-6?

A: No. 74LVC2G34GV,125 uses SC-74/SOT-457 packaging, and 74LVC2G34GW,125 uses 6-TSSOP/SC-88/SOT-363 packaging. These packages have different pin configurations and footprints than SOT-23-6. PCB redesign is required for these alternatives.

Q: Is the 74LVC2G17W6-7 compatible with designs using the SN74LVC2G34DBVRG4?

A: The 74LVC2G17W6-7 maintains identical electrical specifications and SOT-23-6 packaging. However, it includes Schmitt Trigger input configuration, whereas the original part has standard input. Verify that Schmitt Trigger input behavior is acceptable for your application before substitution.

Q: What inventory considerations should guide my selection?

A: SN74LVC2G34DBVR offers 56,100 pcs in stock, providing reliable long-term availability. 74LVC2G34GV,125 provides the largest inventory (188,497 pcs) for high-volume applications. Discontinued and obsolete parts (SN74LVC2G34DBVTG4, NL27WZ16DTT1G) should be avoided for new designs despite current inventory levels.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original SN74LVC2G34DBVRG4 specifications.

Q: Should I select the automotive-grade 74LVC2G34GV-Q100,1 for non-automotive applications?

A: The automotive-grade variant is not required for non-automotive applications. Standard-grade alternatives (SN74LVC2G34DBVR or 74LVC2G34GV,125) provide identical electrical performance at lower cost and with better availability.

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