74LVC11DB,118 Equivalent & Substitute Parts

Part Overview

The 74LVC11DB,118 is a 3-channel AND gate logic IC manufactured by Nexperia USA Inc., housed in a 14-SSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates across a supply voltage range of 1.2V to 3.6V and is suitable for low-voltage logic applications requiring AND gate functionality with three inputs per channel.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	3
Number of Inputs	3
Voltage - Supply	1.2V ~ 3.6V
Current - Output High, Low	24mA, 24mA
Max Propagation Delay @ V, Max CL	6.2ns @ 3.3V, 50pF
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-SSOP (0.209", 5.30mm Width)

Substitute Part Grouping Explanation

Substitution for the 74LVC11DB,118 is determined by the following critical parameters:

Logic function: AND gate with 3 channels and 3 inputs per channel
Output drive capability: 24mA high and low
Propagation delay performance: 6.2ns or better at 3.3V with 50pF load
Operating temperature range: Minimum -40°C to 125°C
Surface mount packaging compatibility
Supply voltage compatibility within the 1.2V to 3.6V range

Three substitute parts meet these criteria with varying trade-offs in supply voltage range, quiescent current, and package form factor.

Parameter Comparison

Parameter	74LVC11DB,118	74LVC11PW,118	74LCX11MTCX	SN74AC11DBR
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Fairchild Semiconductor	Texas Instruments
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	3	3	3	3
Number of Inputs	3	3	3	3
Voltage - Supply	1.2V ~ 3.6V	1.2V ~ 3.6V	2V ~ 3.6V	2V ~ 6V
Current - Quiescent (Max)	10 µA	40 µA	10 µA	2 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Max Propagation Delay @ V, Max CL	6.2ns @ 3.3V, 50pF	6.2ns @ 3.3V, 50pF	6ns @ 3.3V, 50pF	8ns @ 5V, 50pF
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SSOP (0.209", 5.30mm Width)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)	14-SSOP (0.209", 5.30mm Width)
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

74LVC11PW,118 (Nexperia USA Inc., Active): Direct functional equivalent with identical electrical performance and operating temperature range. Package differs (14-TSSOP vs. 14-SSOP), requiring PCB layout adjustment. Higher quiescent current (40 µA vs. 10 µA). ROHS3 compliant. Recommended for designs prioritizing supply chain continuity from the same manufacturer.

74LCX11MTCX (Fairchild Semiconductor, Active): Meets functional requirements with superior propagation delay (6ns vs. 6.2ns). Supply voltage minimum raised to 2V, eliminating 1.2V operation. Operating temperature limited to 85°C. Package is 14-TSSOP. Suitable for applications not requiring extended temperature range or sub-2V operation.

SN74AC11DBR (Texas Instruments, Active): Broadest supply voltage range (2V to 6V) with lowest quiescent current (2 µA). Propagation delay measured at 5V (8ns) rather than 3.3V. Operating temperature limited to 85°C. Package matches original (14-SSOP). Recommended for applications requiring higher supply voltages or extended voltage flexibility.

Frequently Asked Questions (FAQ)

Q: Can 74LVC11PW,118 replace 74LVC11DB,118 directly on the PCB?

A: Electrical function is identical. Package differs: 74LVC11PW,118 uses 14-TSSOP (0.173" width) versus 74LVC11DB,118 14-SSOP (0.209" width). PCB footprint modification is required. Pin count and function remain the same.

Q: What is the minimum supply voltage for each substitute?

A: 74LVC11PW,118 and 74LVC11DB,118 support 1.2V minimum. 74LCX11MTCX and SN74AC11DBR require minimum 2V supply. Applications operating below 2V must use 74LVC series parts.

Q: Which substitute has the best propagation delay performance?

A: 74LCX11MTCX delivers 6ns at 3.3V with 50pF load, compared to 6.2ns for the original and 74LVC11PW,118. SN74AC11DBR is specified at 8ns but measured at 5V supply voltage, making direct comparison at 3.3V not available.

Q: Are all substitutes RoHS compliant?

A: 74LVC11PW,118 and SN74AC11DBR are ROHS3 compliant. 74LCX11MTCX RoHS status is not specified in available documentation.

Q: Which substitute has the lowest power consumption?

A: SN74AC11DBR has the lowest quiescent current at 2 µA. 74LVC11DB,118 and 74LCX11MTCX both specify 10 µA. 74LVC11PW,118 specifies 40 µA quiescent current.

Q: Can I use SN74AC11DBR in a 3.3V system?

A: Yes. SN74AC11DBR operates across 2V to 6V supply range, which includes 3.3V. However, propagation delay is specified at 5V, not 3.3V. Verify timing margins for your specific application.

Q: What is the temperature operating range difference?

A: 74LVC11DB,118 and 74LVC11PW,118 operate -40°C to 125°C. 74LCX11MTCX and SN74AC11DBR are limited to -40°C to 85°C. Applications requiring operation above 85°C must use 74LVC series.

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