74VHC153MTC Equivalent & Substitute Parts

Part Overview

The 74VHC153MTC is a dual 4:1 multiplexer logic integrated circuit manufactured by onsemi in a 16-TSSOP surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The 74VHC series operates across a 2V to 5.5V supply range with 8mA output drive capability per channel, serving applications requiring signal multiplexing in low-power digital systems.

Substiute Parts

74VHC153MTC

onsemiIn Stock: 73174VHC153MTC Datasheet

Current PartRFQ

CD74AC153M

Harris CorporationIn Stock: 1820CD74AC153M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC153MTC is determined by the following critical parameters:

Functional Requirements:

• Multiplexer circuit configuration: 2 x 4:1 (dual independent 4-to-1 multiplexers)
• Single supply voltage operation
• Logic category classification

Electrical Compatibility Criteria:

• Voltage supply range must encompass or overlap with 2V ~ 5.5V
• Output drive current capability must meet or exceed 8mA per channel
• Operating temperature range must support the application's thermal requirements

Physical Compatibility Criteria:

• Surface mount technology (SMT)
• Package footprint compatibility with PCB design constraints

The CD74AC153M qualifies as a substitute based on these parameters. While it operates across a broader voltage range (1.5V ~ 5.5V) and temperature range (-55°C ~ 125°C), and provides higher output drive current (24mA), it maintains the identical 2 x 4:1 multiplexer circuit configuration and surface mount delivery method. Package differences (16-SOIC vs. 16-TSSOP) require PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

Selection between the 74VHC153MTC and CD74AC153M should be based on the following factors:

Voltage Supply Considerations: The CD74AC153M supports operation down to 1.5V, providing additional margin for low-voltage applications. The 74VHC153MTC minimum of 2V is suitable for standard 3.3V and 5V logic systems.

Output Drive Capability: The CD74AC153M delivers 24mA output current compared to the 74VHC153MTC's 8mA. Applications requiring higher fan-out or direct driving of external loads benefit from the increased drive capability of the CD74AC153M.

Temperature Range: The CD74AC153M's extended operating range (-55°C ~ 125°C) accommodates industrial and automotive temperature specifications. The 74VHC153MTC's -40°C ~ 85°C range covers commercial and consumer applications.

Package Footprint: The 16-SOIC package of the CD74AC153M (3.90mm width) differs from the 16-TSSOP package of the 74VHC153MTC (4.40mm width). PCB layout compatibility must be verified before substitution.

Compliance Status: Both parts are classified as obsolete and carry EAR99 export classification. The CD74AC153M is RoHS non-compliant, which may impact procurement for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the CD74AC153M directly replace the 74VHC153MTC without PCB modifications?

A: Functional substitution is possible due to identical circuit configuration (2 x 4:1 multiplexer). However, package differences (16-SOIC vs. 16-TSSOP) require PCB footprint verification. Direct pin-for-pin compatibility exists, but physical placement on the board may require layout adjustment.

Q: What are the key electrical differences between these parts?

A: The CD74AC153M provides higher output drive current (24mA vs. 8mA) and extended voltage range (1.5V ~ 5.5V vs. 2V ~ 5.5V). Both operate as dual 4:1 multiplexers with identical logic functionality. The CD74AC153M also supports a wider temperature range (-55°C ~ 125°C vs. -40°C ~ 85°C).

Q: Are there any compliance or supply chain considerations?

A: Both parts are obsolete products. The CD74AC153M is RoHS non-compliant, which may restrict use in applications subject to RoHS regulations. Verify component availability and lead times with your supplier before committing to substitution.

Q: How do I determine if the higher output current of the CD74AC153M is necessary?

A: Evaluate your application's load requirements. If the multiplexer output drives only logic-level inputs (typical gate capacitance), the 8mA of the 74VHC153MTC is generally sufficient. Applications driving external loads, LEDs, or multiple gate inputs benefit from the 24mA capability of the CD74AC153M.

Q: What is the significance of the different series designations (74VHC vs. 74AC)?

A: The 74VHC series is optimized for low-voltage operation (2V ~ 5.5V), while the 74AC series supports broader voltage ranges (1.5V ~ 5.5V). Both are standard logic families with compatible pin configurations for this multiplexer function. Series selection depends on your system's voltage requirements and available supply rails.