CMX683D4 Equivalent & Substitute Parts

Part Overview

The CMX683D4 is a telecom interface IC functioning as a tone detector in a 16-SOIC surface mount package. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations. The CMX683D4 operates across a supply voltage range of 2.7V to 5.5V with a maximum supply current of 1.5mA and power consumption of 800mW. Its parallel interface configuration and single-circuit design make it suitable for telecom applications requiring tone detection functionality.

Substiute Parts

CMX683D4

CML MicrocircuitsIn Stock: 1882CMX683D4 Datasheet

Current PartRFQ

CMX673D4

CML MicrocircuitsIn Stock: 1470CMX673D4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMX683D4 is determined by strict equivalence across the following critical parameters:

• Functional equivalence: Tone detector function with parallel interface
• Electrical compatibility: Identical supply voltage range (2.7V ~ 5.5V), supply current (1.5mA), and power consumption (800mW)
• Thermal compatibility: Matching operating temperature range (-40°C ~ 85°C)
• Mechanical compatibility: Identical package type (16-SOIC with 0.295" / 7.50mm width) and surface mount configuration
• Regulatory compliance: ROHS3 compliance and MSL Level 1 rating

The CMX673D4 meets all these criteria as a parametric equivalent, with the distinction that it maintains active product status while the CMX683D4 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The CMX673D4 is the direct parametric equivalent for the obsolete CMX683D4. Both components share identical electrical specifications, thermal operating ranges, and mechanical packaging. The CMX673D4 maintains active product status with current manufacturing availability, making it the appropriate selection for replacement in existing designs or new implementations requiring tone detector functionality in the CMX683/CMX673 series.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols. The transition from CMX683D4 to CMX673D4 requires no circuit modifications, as all functional and electrical parameters remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can the CMX673D4 directly replace the CMX683D4 without circuit modifications?

A: Yes. The CMX673D4 is a parametric equivalent with identical electrical specifications, supply voltage range, current consumption, operating temperature range, and 16-SOIC package configuration. No circuit modifications are required.

Q: What is the primary difference between the CMX683D4 and CMX673D4?

A: The CMX683D4 is classified as obsolete, while the CMX673D4 maintains active product status. All electrical and mechanical parameters are identical.

Q: Are both parts compatible with the same PCB layout?

A: Yes. Both components use the identical 16-SOIC (0.295", 7.50mm width) surface mount package, ensuring footprint compatibility without PCB redesign.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CMX683D4 and CMX673D4 are ROHS3 compliant with MSL Level 1 rating, meeting identical regulatory and environmental requirements.

Q: What supply voltage range do these components support?

A: Both parts operate across a supply voltage range of 2.7V to 5.5V with a maximum supply current of 1.5mA.

Q: Are there any thermal operating differences between these parts?

A: No. Both components share an identical operating temperature range of -40°C to 85°C.