CD4011UBPW Equivalent & Substitute Parts

Part Overview

The CD4011UBPW is a NAND Gate IC with 4 channels and 2 inputs per channel, packaged in a 14-TSSOP surface mount configuration. Manufactured by Texas Instruments as part of the 4000B logic series, this component operates across a wide supply voltage range of 3V to 18V and is rated for operating temperatures from -55°C to 125°C. The CD4011UBPW is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity.

Substiute Parts

CD4011UBPW

Texas InstrumentsIn Stock: 1179CD4011UBPW Datasheet

Current PartRFQ

CD4011BPWR

Texas InstrumentsIn Stock: 43350CD4011BPWR Datasheet

MFR RecommendedRFQ

MC14011BDTR2G

onsemiIn Stock: 3679MC14011BDTR2G Datasheet

MFR RecommendedRFQ

NLV14011BDTR2G

onsemiIn Stock: 3254NLV14011BDTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4011UBPW is determined by strict equivalence across the following critical parameters:

• Logic function: NAND Gate with 4 channels and 2 inputs per channel
• Supply voltage range: 3V ~ 18V
• Package type: 14-TSSOP surface mount
• Operating temperature range: -55°C ~ 125°C
• Compliance certifications: ROHS3 Compliant, REACH Unaffected

All identified substitute parts maintain these core electrical and mechanical specifications. Variations in propagation delay, output current capability, and input logic level thresholds are within acceptable tolerances for NAND gate logic applications and do not preclude functional substitution.

Parameter Comparison

Engineering Selection Recommendations

CD4011BPWR is the manufacturer-recommended substitute from Texas Instruments, maintaining the same base product number and offering active product status with established supply chain availability. This part is the preferred choice for direct replacement in applications where Texas Instruments sourcing is specified.

MC14011BDTR2G and NLV14011BDTR2G are functionally equivalent alternatives from onsemi, both with active product status. These parts provide higher output current capability (8.8mA versus 3.4mA) and faster propagation delay (80ns versus 50ns for the main part), making them suitable for applications requiring enhanced drive capability. Both onsemi variants maintain full compliance with ROHS3 and REACH requirements.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements equivalent to the original CD4011UBPW specification.

Frequently Asked Questions (FAQ)

Q: Can CD4011BPWR be used as a direct replacement for CD4011UBPW?

A: Yes. CD4011BPWR is the active equivalent from Texas Instruments with identical electrical specifications, package type, and operating temperature range. The primary difference is product status: CD4011UBPW is obsolete while CD4011BPWR is active production.

Q: What are the differences between Texas Instruments and onsemi substitutes?

A: CD4011BPWR maintains the original output current specification of 3.4mA. MC14011BDTR2G and NLV14011BDTR2G provide higher output current at 8.8mA and slightly faster propagation delay at 80ns. All three maintain the same supply voltage range, logic function, and package configuration.

Q: Are there input logic level differences between the main part and substitutes?

A: Yes. The CD4011UBPW specifies input logic levels of 1V ~ 2.5V (low) and 4V ~ 12.5V (high). All substitute parts specify 1.5V ~ 4V (low) and 4.6V ~ 11V (high). These differences are within normal CMOS logic gate tolerances and do not affect functional compatibility in standard applications.

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

A: Yes. All substitute parts use the 14-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring PCB layout and footprint compatibility.

Q: What is the inventory status of each substitute?

A: CD4011BPWR has 43,250 units in stock. MC14011BDTR2G has 3,600 units in stock. NLV14011BDTR2G has 3,172 units in stock. CD4011UBPW (main part) has 1,131 units in stock as new original inventory.

Q: Are all parts RoHS and REACH compliant?

A: Yes. All parts including the main CD4011UBPW and all substitutes are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.