LMC6953CM Equivalent & Substitute Parts

Part Overview

The LMC6953CM is a multi-voltage supervisor IC manufactured by Texas Instruments, designed to monitor two independent voltage channels with open drain or open collector output configuration. This device is classified as a Power Management (PMIC) component and is packaged in an 8-SOIC surface mount package.

The LMC6953CM has reached obsolete product status. Locating equivalent or substitute components is necessary for ongoing system support, design updates, or inventory replenishment when original stock becomes unavailable.

Substiute Parts

LMC6953CM

Texas InstrumentsIn Stock: 1882LMC6953CM Datasheet

Current PartRFQ

MC33202DR2G

onsemiIn Stock: 89001MC33202DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMC6953CM requires identification of components that satisfy the core functional and physical constraints of the original design:

Critical Substitution Parameters:

• Package compatibility: 8-SOIC surface mount form factor
• Functional category: Voltage supervisor or equivalent monitoring/control IC
• Output type: Open drain or open collector configuration
• Voltage monitoring capability: Support for 2-channel or multi-channel supervision
• Operating temperature range: Minimum -40°C ~ 85°C coverage
• Reset functionality: Active low reset with defined timeout behavior

The substitute part MC33202DR2G, while sharing the identical 8-SOIC package and surface mount characteristics, operates in a different functional category (Linear Amplifiers - General Purpose) and does not provide the voltage supervision, reset timeout, or open drain output characteristics required for direct functional substitution. This part is listed as a cross-reference but does not meet the core electrical requirements for equivalent operation.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LMC6953CM is classified as obsolete. The MC33202DR2G is an active product with current manufacturing support and improved compliance status (ROHS3 Compliant versus RoHS non-compliant).

Compliance and Certification: MC33202DR2G offers superior compliance posture with ROHS3 certification, making it suitable for applications with regulatory compliance requirements. Both components are REACH Unaffected and classified under EAR99 export control.

Functional Compatibility: Direct functional substitution between these two parts is not supported based on provided specifications. The LMC6953CM serves a voltage supervision function with specific reset and monitoring characteristics. The MC33202DR2G is a general-purpose operational amplifier with different electrical characteristics and output behavior. Selection of an appropriate substitute requires identification of an active supervisor IC with equivalent voltage monitoring, reset timeout, and output configuration specifications.

Frequently Asked Questions (FAQ)

Q: Can MC33202DR2G directly replace LMC6953CM in an existing design?

A: No. While both components share the 8-SOIC package form factor, they serve fundamentally different functions. The LMC6953CM is a voltage supervisor with reset functionality; the MC33202DR2G is a general-purpose operational amplifier. Direct substitution would require circuit redesign.

Q: Why is the LMC6953CM listed as obsolete?

A: Product obsolescence indicates that Texas Instruments has discontinued manufacturing and support for this component. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed.

Q: What package considerations apply to substitution?

A: Both the main part and listed reference use the 8-SOIC (0.154", 3.90mm Width) surface mount package. Any substitute component must maintain this package specification to ensure PCB footprint compatibility without layout modifications.

Q: Are there compliance differences between these parts?

A: Yes. The LMC6953CM is RoHS non-compliant, while MC33202DR2G is ROHS3 Compliant. For applications subject to RoHS regulations, the compliance status of the selected substitute is a critical selection criterion.

Q: What is the operating temperature range significance?

A: The LMC6953CM operates from -40°C to 85°C. The MC33202DR2G extends to 105°C. For applications operating at the upper temperature boundary of the original specification, verify that any substitute maintains adequate performance within the required thermal envelope.