SN74LVCU04APWRE4 Equivalent & Substitute Parts

Part Overview

The SN74LVCU04APWRE4 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 substitute parts necessary for ongoing design support and procurement. The device operates across a 1.65V to 3.6V supply voltage range with low quiescent current and is suitable for low-voltage digital logic applications requiring signal inversion.

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)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVCU04APWRE4 is determined by the following criteria:

Primary Compatibility Requirements:

Logic type: Inverter with 6 channels and 1 input per channel
Package: 14-TSSOP surface mount form factor
Supply voltage range: Must encompass or overlap with 1.65V ~ 3.6V
Output current capability: Minimum 24mA for both high and low states
Propagation delay: Maximum 3.8ns at 3.3V with 50pF load
Operating temperature range: Must support -40°C ~ 85°C minimum
RoHS3 compliance and MSL 1 rating required

Identified Substitute Parts: All three substitute parts meet the core functional and packaging requirements while maintaining electrical compatibility within the specified operating parameters.

Parameter Comparison

Parameter	SN74LVCU04APWRE4 (Main)	SN74LVCU04APWR	74LVCU04APW,118	MC74LCXU04DTR2G
Manufacturer	Texas Instruments	Texas Instruments	Nexperia USA Inc.	onsemi
Product Status	Discontinued	Active	Active	Active
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) This is the manufacturer-recommended direct substitute. It maintains identical electrical specifications to the main part while offering active product status and higher inventory availability (6650 pcs). Packaging is Tape & Reel (TR), suitable for automated assembly. This part is the preferred choice for direct replacement in existing designs.

74LVCU04APW,118 (Nexperia USA Inc.) This substitute offers extended operating temperature range (-40°C ~ 125°C) and lower propagation delay (2ns), providing performance margin in timing-critical applications. Quiescent current is higher at 40 µA. Supply voltage range extends to 1.2V minimum, enabling operation in lower-voltage systems. Active product status with 2200 pcs inventory. Suitable for designs requiring enhanced temperature performance.

MC74LCXU04DTR2G (onsemi) This part operates within a 2V ~ 3.6V supply range, requiring minimum 2V operation. Output current is reduced (18mA high, 16mA low) compared to the main part. Propagation delay is 3.6ns, meeting timing requirements. Active product status with 3458 pcs inventory. Acceptable for applications where 2V minimum supply voltage is compatible with system design.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74LVCU04APWR be used as a direct replacement for SN74LVCU04APWRE4? A: Yes. SN74LVCU04APWR is the manufacturer-recommended substitute with identical electrical specifications and 14-TSSOP packaging. The primary difference is product status (active vs. discontinued) and packaging format (Tape & Reel vs. individual unit).

Q: What is the key difference between the Nexperia 74LVCU04APW,118 and the Texas Instruments parts? A: The Nexperia part offers extended operating temperature range to 125°C and faster propagation delay (2ns vs. 3.8ns). However, quiescent current is higher at 40 µA, and minimum supply voltage is lower at 1.2V. Input logic levels also differ slightly.

Q: Is the onsemi MC74LCXU04DTR2G compatible with designs requiring 1.65V minimum supply? A: No. The MC74LCXU04DTR2G requires minimum 2V supply voltage. It is not suitable for applications requiring operation below 2V.

Q: Do all substitute parts use the same 14-TSSOP package? A: Yes. All parts listed use the 14-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring mechanical and electrical compatibility on PCBs designed for the original part.

Q: Are there differences in output current capability between substitutes? A: Yes. SN74LVCU04APWR and 74LVCU04APW,118 both provide 24mA output current (high and low). MC74LCXU04DTR2G provides reduced output current at 18mA high and 16mA low. Verify application requirements before selection.

Q: Which substitute has the best inventory availability? A: SN74LVCU04APWR has the highest inventory at 6650 pcs, followed by MC74LCXU04DTR2G at 3458 pcs, and 74LVCU04APW,118 at 2200 pcs.

Q: Are all substitutes RoHS3 compliant? A: Yes. All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting standard environmental and manufacturing requirements.

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