MX614P Equivalent & Substitute Parts

Part Overview

The MX614P is a BELL 202 compatible modem interface circuit manufactured by CML Microcircuits, designed for 1.8k baud FSK data transmission. This 16-pin DIP package device operates across a 3V to 5.5V supply range and is mounted through conventional through-hole assembly methods. The MX614P is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MX614P

CML MicrocircuitsIn Stock: 974MX614P Datasheet

Current PartRFQ

MX614DW

CML MicrocircuitsIn Stock: 1540MX614DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MX614P is determined by strict equivalence across the following electrical and mechanical parameters:

• Functional Compatibility: Data format (FSK) and baud rate (1.8k) must remain identical
• Electrical Compatibility: Supply voltage range (3V ~ 5.5V) must be maintained
• Pin Configuration: 16-pin package architecture must be preserved
• Manufacturer Continuity: CML Microcircuits maintains the base product series (MX614)

The MX614DW qualifies as a direct functional substitute based on identical electrical specifications and data transmission characteristics. The primary distinction is packaging format: the MX614DW uses surface-mount SOIC technology rather than through-hole DIP assembly, requiring PCB redesign for mechanical integration.

Parameter Comparison

Engineering Selection Recommendations

The MX614DW is the manufacturer-recommended substitute for the obsolete MX614P. Both devices share identical electrical specifications, data transmission protocols, and supply voltage requirements, ensuring functional equivalence at the circuit level.

Product Status Consideration: The MX614P is classified as obsolete with limited inventory availability. The MX614DW maintains active production status with significantly higher stock levels (1501 units versus 927 units), providing supply chain continuity.

Compliance Status: The MX614DW carries ROHS3 compliance and REACH unaffected certification, meeting current environmental and regulatory standards. These certifications support long-term design validity and procurement compliance.

Integration Impact: Selection of the MX614DW requires PCB layout modification due to package format transition from through-hole DIP to surface-mount SOIC. Pin-to-pin electrical compatibility is maintained; mechanical footprint redesign is necessary.

Frequently Asked Questions (FAQ)

Q: Can the MX614DW directly replace the MX614P without circuit modification?

A: Electrical substitution is direct; pin functionality and signal characteristics are identical. PCB layout modification is required due to different mounting technologies (through-hole versus surface-mount). Schematic-level changes are not necessary.

Q: What are the key parameters that define substitution eligibility?

A: FSK data format, 1.8k baud rate, 3V to 5.5V supply voltage range, and 16-pin package architecture must remain constant. The MX614DW meets all these criteria.

Q: Does the MX614DW have better availability than the MX614P?

A: Yes. The MX614DW is in active production status with 1501 units in stock, compared to the obsolete MX614P with 927 units available. The MX614DW represents the current production alternative.

Q: Are there compliance differences between these parts?

A: The MX614DW includes ROHS3 compliance and REACH unaffected certification. The MX614P compliance status is not specified. For applications requiring environmental compliance documentation, the MX614DW is the appropriate selection.

Q: What is the primary design consideration when implementing the MX614DW?

A: The transition from 16-DIP through-hole to 16-SOIC surface-mount packaging requires PCB footprint redesign. Electrical integration remains unchanged; mechanical assembly methodology differs.