ADM1024ARUZ Equivalent & Substitute Parts

Part Overview

The ADM1024ARUZ is a specialized interface IC manufactured by onsemi, designed for PC and PDA applications. This 24-TSSOP surface mount component operates across a supply voltage range of 2.8V to 5.5V and features serial interface capabilities. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

ADM1024ARUZ

onsemiIn Stock: 4261ADM1024ARUZ Datasheet

Current PartRFQ

LM87CIMT/NOPB

Texas InstrumentsIn Stock: 1788LM87CIMT/NOPB Datasheet

SimilarRFQ

LM87CIMTX/NOPB

Texas InstrumentsIn Stock: 15399LM87CIMTX/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADM1024ARUZ are identified based on the following critical parameters:

• Package Compatibility: 24-TSSOP form factor with identical 0.173" width and 4.40mm dimensions
• Mounting Type: Surface mount technology
• Interface Protocol: Serial communication capability
• Supply Voltage Range: Operational compatibility within specified voltage windows
• Moisture Sensitivity: MSL rating of 1 or better
• Regulatory Compliance: REACH Unaffected status and EAR99 classification

The LM87CIMT/NOPB and LM87CIMTX/NOPB from Texas Instruments meet these substitution criteria. Both parts utilize the identical 24-TSSOP package and support 2-Wire Serial and I2C/SMBUS protocols, which are compatible with serial interface requirements. While the LM87 series operates within a narrower supply voltage range (2.8V ~ 3.8V), this range is fully contained within the ADM1024ARUZ specification window, ensuring electrical compatibility in applications operating within this voltage band.

Parameter Comparison

Engineering Selection Recommendations

LM87CIMTX/NOPB is the preferred substitute for new designs and ongoing production. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. The Tape & Reel packaging format supports high-volume manufacturing processes. Current inventory levels (15,332 pieces) provide adequate stock for production requirements.

LM87CIMT/NOPB serves as a secondary alternative, offering identical electrical and mechanical specifications. However, this variant is classified as obsolete, limiting its suitability for long-term applications. Tube packaging is appropriate for lower-volume or prototype applications.

Both LM87 variants require design verification for applications requiring the full 2.8V to 5.5V supply range of the ADM1024ARUZ. Systems operating exclusively within the 2.8V to 3.8V window present no compatibility constraints. All three parts maintain identical MSL ratings, REACH compliance, and export classification, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can LM87CIMT/NOPB or LM87CIMTX/NOPB be used as direct pin-for-pin replacements for ADM1024ARUZ?

A: Yes, both LM87 variants are direct pin-for-pin replacements. All three parts use the 24-TSSOP package with identical pinout and mechanical dimensions (0.173" width, 4.40mm). Surface mount placement and reflow processes remain unchanged.

Q: What is the primary limitation when substituting with LM87 series parts?

A: The LM87 series operates within a narrower supply voltage range (2.8V ~ 3.8V) compared to the ADM1024ARUZ (2.8V ~ 5.5V). Substitution is valid only for applications where the system supply voltage remains within the 2.8V to 3.8V window. Applications requiring operation above 3.8V require alternative solutions.

Q: Which LM87 variant should be selected for new production?

A: LM87CIMTX/NOPB is recommended for new production due to its active product status and Tape & Reel packaging format. This ensures supply chain continuity and compatibility with automated assembly processes.

Q: Are there any regulatory or compliance differences between the three parts?

A: No. All three parts share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and MSL rating (1 - Unlimited). Regulatory and compliance requirements remain consistent across substitution.

Q: What packaging formats are available for the LM87 substitutes?

A: LM87CIMT/NOPB is supplied in Tube packaging, suitable for lower-volume applications. LM87CIMTX/NOPB is supplied in Tape & Reel format, optimized for high-volume automated assembly and production environments.