MT9044APR1 Equivalent & Substitute Parts

Part Overview

The MT9044APR1 is a telecom interface IC implementing a digital phase locked loop function in a 44-PLCC surface mount package. Manufactured by Microchip Technology, this component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates within a 4.5V to 5.5V supply range with 90mA current consumption and supports operating temperatures from -40°C to 85°C.

Substiute Parts

MT9044APR1

Microchip TechnologyIn Stock: 897MT9044APR1 Datasheet

Current PartRFQ

ZL30102QDG1

Microchip TechnologyIn Stock: 1441ZL30102QDG1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ZL30102QDG1 serves as a manufacturer-recommended substitute for the MT9044APR1 based on the following substitution criteria:

Functional Equivalence: Both components implement phase locked loop (PLL) functionality for telecom applications. The ZL30102QDG1 is specifically designed for T1/E1 telecom standards with a maximum frequency of 65.536MHz.

Compliance & Certification: Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring equivalent environmental and regulatory compatibility.

Operating Temperature Range: Both components support the identical -40°C to 85°C operating temperature specification, maintaining thermal performance parity.

Supply Voltage Consideration: The MT9044APR1 operates at 4.5V ~ 5.5V, while the ZL30102QDG1 operates at 2.97V ~ 3.63V. This represents a voltage domain shift from 5V to 3.3V logic levels, requiring circuit-level voltage translation or power supply redesign.

Package Transition: The substitution involves a package change from 44-LCC (J-Lead) to 64-TQFP, necessitating PCB layout and footprint modifications.

Parameter Comparison

Engineering Selection Recommendations

The ZL30102QDG1 is the manufacturer-recommended substitute for the obsolete MT9044APR1. Both components maintain identical operating temperature specifications (-40°C to 85°C) and equivalent RoHS3 compliance status, supporting direct functional replacement in telecom interface applications.

The substitute part carries Active product status, ensuring long-term availability and manufacturing support compared to the Obsolete status of the original component. Both components maintain MSL Level 1 (Unlimited) moisture sensitivity ratings, eliminating moisture-related handling constraints.

Implementation of this substitute requires evaluation of two critical design parameters: supply voltage domain transition from 5V to 3.3V logic levels, and package footprint change from 44-LCC to 64-TQFP. These modifications necessitate corresponding updates to power distribution networks and PCB layout designs.

Frequently Asked Questions (FAQ)

Q: Can the ZL30102QDG1 directly replace the MT9044APR1 without circuit modifications?

A: No. While both components implement PLL functionality with identical operating temperature ranges and compliance certifications, the supply voltage differs significantly (4.5V-5.5V versus 2.97V-3.63V). Circuit-level voltage translation or power supply redesign is required. Additionally, the package change from 44-LCC to 64-TQFP requires PCB layout modifications.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) functional equivalence (both implement digital phase locked loop), (2) operating temperature range (-40°C to 85°C), (3) compliance certifications (ROHS3, MSL Level 1), and (4) supply voltage domain compatibility. The package format and pin configuration are secondary considerations requiring layout redesign.

Q: Why is the ZL30102QDG1 recommended as a substitute?

A: The ZL30102QDG1 is the manufacturer-recommended substitute specified by Microchip Technology. It maintains functional PLL capability for telecom applications, identical operating temperature specifications, and equivalent environmental compliance ratings. The part carries Active product status, ensuring manufacturing continuity.

Q: What design considerations apply to the package transition from 44-LCC to 64-TQFP?

A: The package change requires PCB footprint redesign, trace routing modifications, and potential changes to thermal management strategies. The 64-TQFP package (10x10mm) differs in pin count, pitch, and physical dimensions from the 44-LCC package (16.59x16.59mm). Pin function mapping must be verified against device datasheets prior to implementation.

Q: Are there moisture sensitivity or storage requirement differences between these components?

A: No. Both components maintain identical MSL Level 1 (Unlimited) moisture sensitivity ratings, eliminating differences in storage, handling, or reflow process requirements.