CD4049UBPW Equivalent & Substitute Parts

Part Overview

The CD4049UBPW is a 6-channel inverter logic IC manufactured by Texas Instruments in the 4000B series. This part is discontinued at DiGi Electronics but remains available through inventory channels. The CD4049UBPW operates across a wide supply voltage range of 3V to 18V, making it suitable for both low-voltage and standard logic applications. Due to its discontinued status, equivalent substitute parts from active product lines are necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	3V ~ 18V
Current - Quiescent (Max)	4 µA
Input Logic Level - Low	1V ~ 2.5V
Input Logic Level - High	4V ~ 12.5V
Max Propagation Delay @ V, Max CL	50ns @ 15V, 50pF
Operating Temperature	-55°C ~ 125°C
Package / Case	16-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 of the CD4049UBPW is determined by strict equivalence across the following critical parameters:

Logic Type: Inverter (6-channel, single input per channel)
Package: 16-TSSOP form factor with identical pin configuration
Supply Voltage Range: 3V ~ 18V
Input Logic Levels: Low 1V ~ 2.5V, High 4V ~ 12.5V
Propagation Delay: 50ns @ 15V, 50pF
Operating Temperature: -55°C ~ 125°C
Compliance: ROHS3, MSL 1, REACH Unaffected

All substitute parts listed maintain these core electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign.

Parameter Comparison

Parameter	CD4049UBPW (Main)	CD4049UBPWR	MC14049UBDTR2G	NLV14049UBDTR2G
Manufacturer	Texas Instruments	Texas Instruments	onsemi	onsemi
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
Logic Type	Inverter	Inverter	Inverter	Inverter
Number of Circuits	6	6	6	6
Number of Inputs	1	1	1	1
Voltage - Supply	3V ~ 18V	3V ~ 18V	3V ~ 18V	3V ~ 18V
Current - Quiescent (Max)	4 µA	4 µA	4 µA	4 µA
Current - Output High, Low	4.3mA, 24mA	4.3mA, 24mA	10mA, 40mA	10mA, 40mA
Input Logic Level - Low	1V ~ 2.5V	1V ~ 2.5V	1V ~ 2.5V	1V ~ 2.5V
Input Logic Level - High	4V ~ 12.5V	4V ~ 12.5V	4V ~ 12.5V	4V ~ 12.5V
Max Propagation Delay @ V, Max CL	50ns @ 15V, 50pF	50ns @ 15V, 50pF	50ns @ 15V, 50pF	50ns @ 15V, 50pF
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging Option	Tube	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

CD4049UBPWR (Texas Instruments): This part maintains identical electrical specifications to the CD4049UBPW with active product status. It is the direct equivalent from the original manufacturer and is available in Cut Tape and Digi-Reel packaging options. Selection of this part preserves single-source continuity within the Texas Instruments product line.

MC14049UBDTR2G (onsemi): This part is functionally equivalent with active product status. Output current specifications are higher (10mA, 40mA versus 4.3mA, 24mA), providing enhanced drive capability while maintaining all other electrical parameters. This part is available in Tape & Reel packaging.

NLV14049UBDTR2G (onsemi): This part is functionally equivalent with active product status. Output current specifications are higher (10mA, 40mA versus 4.3mA, 24mA), providing enhanced drive capability while maintaining all other electrical parameters. This part is available in Tape & Reel packaging.

All substitute parts comply with ROHS3, maintain MSL 1 rating, and are REACH Unaffected, ensuring regulatory compliance across applications.

Frequently Asked Questions (FAQ)

Q: Can CD4049UBPWR be used as a direct replacement for CD4049UBPW?

A: Yes. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications, supply voltage range, logic levels, propagation delay, and operating temperature. The primary difference is packaging format (Tube versus Cut Tape/Digi-Reel) and product status (Discontinued versus Active).

Q: What is the difference between the Texas Instruments and onsemi substitute parts?

A: The onsemi parts (MC14049UBDTR2G and NLV14049UBDTR2G) provide higher output current capability (10mA, 40mA) compared to the Texas Instruments parts (4.3mA, 24mA). All other electrical parameters, including supply voltage, logic levels, propagation delay, and operating temperature, remain identical. Both onsemi parts are functionally equivalent to each other.

Q: Are the 16-TSSOP packages identical across all substitute parts?

A: Yes. All parts use the 16-TSSOP package with dimensions of 0.173" width and 4.40mm width. Pin configuration and footprint are identical, enabling direct PCB layout compatibility.

Q: What is the significance of the higher output current in the onsemi parts?

A: The onsemi parts (MC14049UBDTR2G and NLV14049UBDTR2G) offer higher output current specifications (10mA, 40mA) compared to the Texas Instruments parts (4.3mA, 24mA). This provides greater drive capability for downstream logic circuits. Applications with lower output current requirements can use either part without functional impact.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed—CD4049UBPWR, MC14049UBDTR2G, and NLV14049UBDTR2G—are ROHS3 Compliant with MSL 1 (Unlimited) rating and REACH Unaffected status.

Q: What packaging options are available for each substitute part?

A: CD4049UBPWR is available in Cut Tape (CT) and Digi-Reel packaging. MC14049UBDTR2G and NLV14049UBDTR2G are available in Tape & Reel (TR) packaging. Selection depends on production volume and assembly requirements.

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