MC100E137FN Equivalent & Substitute Parts

Part Overview

The MC100E137FN is an 8-bit binary counter logic IC manufactured by onsemi, housed in a 28-PLCC surface mount package. This component functions as a positive/negative edge-triggered counter with asynchronous reset and timing capabilities, operating at a maximum count rate of 2.2 GHz across a supply voltage range of 4.2 V to 5.5 V. The MC100E137FN is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and new design implementations where this functionality is required.

Substiute Parts

MC100E137FN

onsemiIn Stock: 1429MC100E137FN Datasheet

Current PartRFQ

MC100E137FNG

onsemiIn Stock: 2197MC100E137FNG Datasheet

DirectRFQ

MC10E137FNG

onsemiIn Stock: 1353MC10E137FNG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MC100E137FN are identified based on strict equivalence across the following critical parameters: logic type (binary counter), bit width (8-bit), counter direction (up), reset mechanism (asynchronous), timing behavior (asynchronous), trigger capability (positive and negative edge), package form factor (28-PLCC), and mounting technology (surface mount). Supply voltage range and operating temperature must remain within or exceed the original specification to ensure functional compatibility.

The MC100E137FN has two identified substitutes:

1. MC100E137FNG (Direct Manufacturer Equivalent): Same base product number (100E137), identical package, and matching electrical specifications. This part is active in production status with ROHS3 compliance.

2. MC10E137FNG (Parametric Equivalent): Shares the same 8-bit binary counter architecture, package form factor, and core electrical parameters. Operates within compatible supply voltage (4.2 V ~ 5.7 V) and temperature ranges. Classified as obsolete but represents a functional alternative from the onsemi 10E series.

Parameter Comparison

Engineering Selection Recommendations

For new designs and ongoing system support, MC100E137FNG is the preferred substitute. This part maintains active production status, shares the identical base product number (100E137), and achieves ROHS3 compliance, eliminating regulatory and supply chain risks associated with the obsolete MC100E137FN.

MC10E137FNG serves as a secondary alternative when MC100E137FNG availability is constrained. While also obsolete, it provides parametric equivalence across all critical electrical and mechanical specifications, including supply voltage tolerance and operating temperature range. Both substitutes maintain the 28-PLCC package footprint and surface mount compatibility required for direct board-level replacement.

Selection between these substitutes should prioritize MC100E137FNG due to its active status and compliance certifications. MC10E137FNG should be considered only when supply or application-specific constraints necessitate its use.

Frequently Asked Questions (FAQ)

Q: Can MC100E137FNG directly replace MC100E137FN without PCB modifications?

A: Yes. Both parts share identical package geometry (28-PLCC), pin configuration, and mounting type (surface mount). No PCB layout changes are required for direct substitution.

Q: What is the primary difference between MC100E137FNG and MC10E137FNG?

A: MC100E137FNG is the direct manufacturer equivalent with active production status and ROHS3 compliance. MC10E137FNG is a parametric equivalent from the onsemi 10E series that matches core electrical specifications but carries obsolete status. MC100E137FNG is the recommended choice for new applications.

Q: Are there supply voltage compatibility concerns when substituting MC10E137FNG?

A: No. MC10E137FNG operates across 4.2 V to 5.7 V, which encompasses the original MC100E137FN range of 4.2 V to 5.5 V. Supply voltage compatibility is maintained.

Q: Does the MSL rating differ between the main part and substitutes?

A: No. All three parts carry an MSL rating of 3 (168 Hours), indicating identical moisture sensitivity and storage requirements.

Q: Which substitute should be selected for RoHS-compliant applications?

A: Both MC100E137FNG and MC10E137FNG are ROHS3 compliant. The original MC100E137FN is RoHS non-compliant. For regulatory compliance, either substitute is acceptable, with MC100E137FNG preferred due to active production status.

Q: Is the 28-PLCC package footprint identical across all three parts?

A: Yes. All parts use the 28-LCC (J-Lead) package with dimensions of 11.51 x 11.51 mm. Footprint compatibility is guaranteed for direct board-level replacement.