CD74HCT4067ME4 Equivalent & Substitute Parts

Part Overview

The CD74HCT4067ME4 is a 16:1 multiplexer/demultiplexer interface IC manufactured by Texas Instruments in a 24-SOIC surface mount package. This component functions as a single-circuit analog switch with 180Ohm on-state resistance, designed for signal routing and selection applications. The part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

CD74HCT4067ME4

Texas InstrumentsIn Stock: 809CD74HCT4067ME4 Datasheet

Current PartRFQ

HEF4067BT,653

NXP SemiconductorsIn Stock: 9627HEF4067BT,653 Datasheet

MFR RecommendedRFQ

MC14067BDWG

onsemiIn Stock: 1489MC14067BDWG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HCT4067ME4 is determined by the following critical parameters:

• Multiplexer/Demultiplexer configuration: 16:1 (mandatory match)
• Package type: 24-SOIC surface mount (mandatory match)
• On-state resistance: 180Ohm maximum (determines signal integrity and insertion loss)
• Supply voltage range: 4.5V ~ 5.5V (determines circuit compatibility)
• Operating temperature range: -55°C ~ 125°C (determines environmental suitability)
• Channel-to-Channel Matching: 10Ohm (determines crosstalk performance)

The substitute parts listed below meet these core electrical and mechanical requirements, enabling direct functional replacement in applications requiring 16:1 analog multiplexing with TTL-compatible supply voltages.

Parameter Comparison

Engineering Selection Recommendations

HEF4067BT,653 (NXP Semiconductors): This part maintains active product status with 9553 units in stock. It is REACH Unaffected and carries MSL 1 (Unlimited) moisture sensitivity rating. Limited electrical parameter data is provided in the available documentation; verification of on-state resistance, bandwidth, and supply voltage specifications against application requirements is necessary before selection.

MC14067BDWG (onsemi): This part is actively manufactured with 1420 units in stock and maintains ROHS3 compliance. It supports a wider supply voltage range (3V ~ 18V) compared to the original part (4.5V ~ 5.5V), enabling use in broader voltage environments. The on-state resistance is specified at 280Ohm maximum, which is higher than the original 180Ohm specification. The -3dB bandwidth is 15MHz, significantly lower than the original 89MHz. These differences may impact signal integrity in high-frequency applications. MSL rating is 3 (168 Hours), requiring controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can the MC14067BDWG substitute for the CD74HCT4067ME4 in all applications?

A: The MC14067BDWG shares the same 16:1 multiplexer configuration and 24-SOIC package. However, the higher on-state resistance (280Ohm vs. 180Ohm) and lower bandwidth (15MHz vs. 89MHz) may affect performance in high-frequency or low-impedance signal routing applications. Application-specific testing is required to confirm compatibility.

Q: What is the significance of the supply voltage range difference between the original and MC14067BDWG?

A: The CD74HCT4067ME4 operates at 4.5V ~ 5.5V (TTL-compatible single supply), while the MC14067BDWG operates at 3V ~ 18V. The wider range of the MC14067BDWG provides flexibility for systems using different supply voltages, but circuit design must account for the different electrical characteristics at different voltage levels.

Q: Why is the HEF4067BT,653 listed without complete electrical specifications?

A: The HEF4067BT,653 is provided as a manufacturer-recommended substitute based on functional equivalence (16:1 multiplexer, 24-SOIC package). Complete electrical parameter data is not available in the provided documentation. Detailed specifications should be obtained from the NXP datasheet before final selection.

Q: Are all substitute parts RoHS3 compliant?

A: The CD74HCT4067ME4 and MC14067BDWG are both ROHS3 Compliant. RoHS compliance status for the HEF4067BT,653 is not specified in the available data.

Q: What is the difference in moisture sensitivity between these parts?

A: The CD74HCT4067ME4 and HEF4067BT,653 both carry MSL 1 (Unlimited), requiring no special moisture control. The MC14067BDWG carries MSL 3 (168 Hours), requiring controlled storage and handling to prevent moisture absorption during the 168-hour window before soldering.