93LC86CT-I/MC EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93LC86CT-I/MC is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol. This non-volatile memory device operates across a wide supply voltage range (2.5V to 5.5V) and is housed in an 8-DFN surface mount package. The component is actively produced and RoHS3 compliant, making it suitable for industrial and commercial applications requiring persistent data storage with serial communication interfaces.

Substitute parts are identified when equivalent memory capacity, interface protocol, package form factor, and operating specifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

93LC86CT-I/MC

Microchip TechnologyIn Stock: 3259293LC86CT-I/MC Datasheet

Current PartRFQ

CAT93C86BHU4I-GT3

onsemiIn Stock: 3862CAT93C86BHU4I-GT3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 93LC86CT-I/MC is determined by the following critical parameters:

• Memory Capacity: 16Kbit (2K x 8 or 1K x 16 organization)
• Serial Interface Protocol: Microwire
• Package Form Factor: 8-pin DFN with exposed pad, 2x3mm footprint
• Supply Voltage Compatibility: Minimum 2.5V operation required
• Operating Temperature Range: -40°C to 85°C
• Surface Mount Technology: Compatible with standard PCB assembly processes

The substitute part CAT93C86BHU4I-GT3 meets all critical substitution criteria. While it features a higher clock frequency (4 MHz vs. 3 MHz) and extended lower voltage operation (1.8V vs. 2.5V minimum), these represent functional enhancements that maintain backward compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 93LC86CT-I/MC and CAT93C86BHU4I-GT3 are actively manufactured and RoHS3 compliant, meeting current regulatory requirements for electronic component procurement. The onsemi substitute offers operational advantages including higher clock frequency capability and lower minimum supply voltage, while maintaining identical memory capacity, interface protocol, and temperature operating range.

Selection between these components should be based on supply chain availability, cost considerations, and specific application voltage requirements. The substitute part is suitable for direct replacement in existing designs without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the CAT93C86BHU4I-GT3 directly replace the 93LC86CT-I/MC in existing designs?

A: Yes. Both components share identical memory capacity (16Kbit), memory organization (2K x 8 or 1K x 16), Microwire interface protocol, operating temperature range (-40°C to 85°C), and surface mount package footprint (8-pin DFN, 2x3mm). The substitute operates at higher clock frequency (4 MHz vs. 3 MHz) and lower minimum voltage (1.8V vs. 2.5V), representing functional enhancements compatible with the original design.

Q: Are there package compatibility concerns between 8-VFDFN and 8-UFDFN variants?

A: Both packages are 8-pin DFN with exposed pad in 2x3mm form factor, suitable for identical PCB footprints and assembly processes. The VFDFN and UFDFN designations indicate minor manufacturing variations that do not affect electrical performance or mechanical compatibility.

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

A: Critical substitution parameters include memory capacity (16Kbit), memory organization (2K x 8 or 1K x 16), serial interface type (Microwire), package form factor (8-pin DFN exposed pad, 2x3mm), and operating temperature range (-40°C to 85°C). Supply voltage range and clock frequency are secondary considerations when the substitute maintains or exceeds the original specifications.

Q: Is the higher clock frequency of the substitute part a concern?

A: No. The CAT93C86BHU4I-GT3 operates at 4 MHz compared to the original 3 MHz specification. This represents increased performance capability and is fully backward compatible with designs specified for 3 MHz operation.

Q: What compliance certifications apply to both parts?

A: Both components are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.