SN74LVCU04APWRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVCU04APWRG4 is a 6-channel inverter logic IC manufactured by Texas Instruments in a 14-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The device operates across a 1.65V to 3.6V supply voltage range with low quiescent current and fast propagation delay characteristics suitable for low-power digital logic applications.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	1.65V ~ 3.6V
Current - Quiescent (Max)	10 µA
Current - Output High, Low	24mA, 24mA
Max Propagation Delay @ 3.3V, 50pF	3.8ns
Operating Temperature	-40°C ~ 85°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVCU04APWRG4 is determined by the following critical parameters:

Logic Configuration: 6-channel inverter with single input per channel
Package Type: 14-TSSOP surface mount form factor
Supply Voltage Range: Minimum 1.65V operation required
Output Drive Capability: 24mA output current (high and low)
Propagation Delay: Maximum 3.8ns at 3.3V with 50pF load
Temperature Range: -40°C to 85°C minimum
Compliance: ROHS3 compliant, MSL Level 1

Substitute parts must maintain compatibility across all these parameters. Parts are grouped by manufacturer and product status to facilitate selection based on availability and supply chain requirements.

Parameter Comparison

Parameter	SN74LVCU04APWRG4 (Main)	SN74LVCU04APWR	74LVCU04APW,118	MC74LCXU04DTR2G
Manufacturer	Texas Instruments	Texas Instruments	Nexperia USA Inc.	onsemi
Product Status	Discontinued	Active	Active	Active
Packaging	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Voltage - Supply	1.65V ~ 3.6V	1.65V ~ 3.6V	1.2V ~ 3.6V	2V ~ 3.6V
Current - Quiescent (Max)	10 µA	10 µA	40 µA	10 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	18mA, 16mA
Input Logic Level - Low	0.4V ~ 0.65V	0.4V ~ 0.65V	0.12V ~ 1.2V	0.55V
Input Logic Level - High	1.32V ~ 2.88V	1.32V ~ 2.88V	1.08V ~ 2.4V	1.7V ~ 2.7V
Max Propagation Delay @ 3.3V, 50pF	3.8ns	3.8ns	2ns	3.6ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 85°C
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

SN74LVCU04APWR (Texas Instruments) is the primary parametric equivalent. This part maintains identical electrical specifications to the main part while offering active product status and Tape & Reel packaging for production environments. Supply voltage range, quiescent current, output drive capability, and propagation delay are fully matched.

74LVCU04APW,118 (Nexperia USA Inc.) provides an alternative from an active manufacturer. This part extends the supply voltage range to 1.2V minimum and operating temperature to 125°C maximum. Quiescent current is elevated to 40 µA. Propagation delay is improved to 2ns. Input logic level thresholds differ from the main part. This substitute is suitable for applications requiring extended temperature operation or lower supply voltage tolerance, provided the increased quiescent current is acceptable.

MC74LCXU04DTR2G (onsemi) operates within a 2V to 3.6V supply range, excluding the 1.65V lower bound of the main part. Quiescent current matches at 10 µA. Output drive capability is reduced to 18mA (high) and 16mA (low). Propagation delay is 3.6ns, meeting the 3.8ns specification. Input logic level thresholds differ. This substitute is applicable only in systems with minimum 2V supply voltage and where reduced output drive current is acceptable.

All three substitutes maintain ROHS3 compliance and MSL Level 1 rating. Selection should be based on supply voltage requirements, temperature range needs, and output drive current demands of the target application.

Frequently Asked Questions (FAQ)

Q: Can SN74LVCU04APWR directly replace SN74LVCU04APWRG4?

A: Yes. SN74LVCU04APWR is a parametric equivalent with identical electrical specifications. The primary difference is packaging format (Tape & Reel versus Tube) and product status (Active versus Discontinued). Both operate at 1.65V to 3.6V supply, deliver 24mA output current, and exhibit 3.8ns propagation delay at 3.3V with 50pF load.

Q: What are the limitations of 74LVCU04APW,118 as a substitute?

A: The Nexperia part increases quiescent current from 10 µA to 40 µA and alters input logic level thresholds. It is not suitable for applications with strict low-power requirements or those dependent on the original input threshold specifications. However, it offers improved propagation delay (2ns) and extended temperature range (-40°C to 125°C).

Q: Is MC74LCXU04DTR2G compatible with 1.65V supply voltage applications?

A: No. The onsemi part specifies a minimum supply voltage of 2V, making it incompatible with systems operating at 1.65V. Additionally, output drive current is reduced to 18mA (high) and 16mA (low) compared to the 24mA specification of the main part.

Q: Do all substitutes use the same 14-TSSOP package?

A: Yes. All substitute parts use the 14-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts.

Q: Are all substitutes ROHS3 compliant?

A: Yes. SN74LVCU04APWR, 74LVCU04APW,118, and MC74LCXU04DTR2G are all ROHS3 compliant with MSL Level 1 rating, matching the environmental and regulatory requirements of the main part.

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