74HC4067DB,118 Equivalent & Substitute Parts

Part Overview

The 74HC4067DB,118 is a 16:1 multiplexer/demultiplexer interface IC manufactured by Nexperia USA Inc. in a 24-SSOP package. This component functions as an analog switch with single supply operation (2V to 10V), designed for signal routing and channel selection applications. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Multiplexer/Demultiplexer Circuit	16:1
Number of Circuits	1
On-State Resistance (Max)	120Ω
Channel-to-Channel Matching (ΔRon)	6Ω
Voltage - Supply, Single (V+)	2V ~ 10V
Switch Time (Ton, Toff) (Max)	45ns, 45ns
-3dB Bandwidth	100MHz
Channel Capacitance (CS(off), CD(off))	4.6pF
Current - Leakage (IS(off)) (Max)	100nA
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	24-SSOP (0.209", 5.30mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC4067DB,118 is determined by the following critical parameters:

Multiplexer Configuration: Must be 16:1 topology with single circuit
On-State Resistance: Maximum 120Ω (lower values acceptable; higher values require application verification)
Supply Voltage Range: Must support 2V ~ 10V single supply operation
Switch Time: Maximum 45ns for both Ton and Toff (faster switching acceptable)
Bandwidth: Minimum 100MHz (-3dB)
Package Compatibility: Surface mount packages with equivalent or superior thermal/electrical characteristics
Compliance: ROHS3 compliant, MSL Level 1

Two substitute parts meet these criteria with documented electrical and mechanical compatibility.

Parameter Comparison

Parameter	74HC4067DB,118 (Main)	74HC4067PW,118 (Substitute)	CD74HC4067SM96 (Substitute)
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Texas Instruments
Multiplexer/Demultiplexer Circuit	16:1	16:1	16:1
Number of Circuits	1	1	1
On-State Resistance (Max)	120Ω	120Ω	160Ω
Channel-to-Channel Matching (ΔRon)	6Ω	6Ω	8.5Ω
Voltage - Supply, Single (V+)	2V ~ 10V	2V ~ 10V	2V ~ 6V
Switch Time (Ton, Toff) (Max)	45ns, 45ns	45ns, 45ns	51ns, 49ns
-3dB Bandwidth	100MHz	100MHz	89MHz
Channel Capacitance (CS(off), CD(off))	4.6pF	4.6pF	5pF, 50pF
Current - Leakage (IS(off)) (Max)	100nA	100nA	800nA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-55°C ~ 125°C
Package / Case	24-SSOP (0.209", 5.30mm)	24-TSSOP (0.173", 4.40mm)	24-SSOP (0.209", 5.30mm)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

74HC4067PW,118 (Nexperia USA Inc.)

This part is the primary substitute for the 74HC4067DB,118. It maintains identical electrical specifications (120Ω on-state resistance, 45ns switching time, 100MHz bandwidth, 100nA leakage) and supply voltage range (2V ~ 10V). The only difference is the package format: 24-TSSOP (0.173" width) versus 24-SSOP (0.209" width). Both are surface mount packages with equivalent pin counts and functionality. The 74HC4067PW,118 is in active production status with high inventory availability, ensuring long-term procurement viability. ROHS3 compliance and MSL Level 1 certification are maintained.

CD74HC4067SM96 (Texas Instruments)

This part provides functional equivalence with documented trade-offs. It maintains the 16:1 multiplexer configuration and surface mount 24-SSOP package format identical to the main part. However, electrical parameters differ: on-state resistance is 160Ω (versus 120Ω), switch time is 51ns/49ns (versus 45ns/45ns), bandwidth is 89MHz (versus 100MHz), and leakage current is 800nA (versus 100nA). The supply voltage range is restricted to 2V ~ 6V (versus 2V ~ 10V). This part is suitable only for applications where the higher resistance, slower switching, and reduced supply voltage range are acceptable. The extended operating temperature range (-55°C ~ 125°C) provides additional margin for extreme environment applications. ROHS3 compliance and MSL Level 1 certification are maintained.

Frequently Asked Questions (FAQ)

Q: Can I use 74HC4067PW,118 as a direct replacement for 74HC4067DB,118?

A: Yes. The 74HC4067PW,118 is electrically identical to the 74HC4067DB,118. The only difference is the package format: 24-TSSOP versus 24-SSOP. Both packages have the same pin count and functionality. PCB layout modifications may be required due to the different package dimensions (0.173" versus 0.209" width), but electrical performance is equivalent.

Q: What are the limitations of using CD74HC4067SM96 as a substitute?

A: The CD74HC4067SM96 has three documented limitations: (1) On-state resistance is 160Ω instead of 120Ω, which increases signal attenuation; (2) Supply voltage range is limited to 2V ~ 6V instead of 2V ~ 10V, restricting operation at higher supply voltages; (3) Switch time is 51ns/49ns instead of 45ns/45ns, and bandwidth is 89MHz instead of 100MHz, affecting high-frequency performance. Use this part only if your application can tolerate these trade-offs.

Q: Are package dimensions critical for substitution?

A: Package dimensions affect PCB layout and thermal management but do not impact electrical functionality. The 74HC4067PW,118 uses a narrower 24-TSSOP package (0.173" width) compared to the 24-SSOP packages used by the main part and CD74HC4067SM96 (0.209" width). Verify PCB footprint compatibility before design implementation.

Q: Do all substitute parts have the same compliance certifications?

A: Yes. Both substitute parts (74HC4067PW,118 and CD74HC4067SM96) are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the main part's compliance profile.

Q: Which substitute should I select for new designs?

A: Select 74HC4067PW,118 for electrical equivalence with the 74HC4067DB,118. This part maintains all electrical specifications and is in active production. Select CD74HC4067SM96 only if the higher on-state resistance, restricted supply voltage range, and slower switching time are acceptable for your application requirements.

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