93C86CT-I/MNY EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93C86CT-I/MNY is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol. This non-volatile memory device is designed for applications requiring persistent data storage with low power consumption. The part is currently in active production status with 802 units available in stock. Substitute parts are identified when equivalent memory capacity, interface protocol, and electrical specifications align within acceptable operational parameters, enabling seamless integration into existing circuit designs without functional degradation.

Substiute Parts

93C86CT-I/MNY

Microchip TechnologyIn Stock: 85793C86CT-I/MNY Datasheet

Current PartRFQ

CAT93C86BHU4I-GT3

onsemiIn Stock: 3862CAT93C86BHU4I-GT3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 93C86CT-I/MNY are qualified based on the following critical parameters:

• Memory Capacity: 16Kbit (2K x 8 or 1K x 16 organization)
• Serial Interface Protocol: Microwire
• Supply Voltage Compatibility: Overlapping operational voltage range
• Operating Temperature Range: -40°C ~ 85°C minimum
• Package Classification: 8-pin DFN surface mount variants
• Product Status: Active manufacturing status
• Compliance Standards: ROHS3 and REACH compliance alignment

The CAT93C86BHU4I-GT3 qualifies as a direct substitute based on identical memory capacity, matching Microwire interface protocol, compatible temperature range, and equivalent surface mount packaging. The substitute part demonstrates enhanced clock frequency capability (4 MHz versus 3 MHz) and extended lower voltage support (1.8V minimum versus 4.5V minimum), providing operational flexibility within the same functional category.

Parameter Comparison

Engineering Selection Recommendations

Both the primary part (93C86CT-I/MNY) and the substitute part (CAT93C86BHU4I-GT3) maintain active production status with full ROHS3 compliance and REACH unaffected classification. Selection between these parts should be based on supply chain availability and voltage requirement specifications. The substitute part supports extended lower voltage operation (1.8V minimum), which may provide system design advantages in battery-powered or low-voltage applications. The substitute part's higher clock frequency (4 MHz) does not introduce incompatibility and may improve data access performance. Both parts share identical memory capacity, interface protocol, and temperature operating range, ensuring functional equivalence in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the CAT93C86BHU4I-GT3 directly replace the 93C86CT-I/MNY in existing designs?

A: Yes. Both parts implement identical 16Kbit Microwire EEPROM architecture with matching memory organization (2K x 8, 1K x 16), operating temperature range (-40°C ~ 85°C), and surface mount 8-pin DFN packaging. The substitute part's higher clock frequency and extended lower voltage support do not create incompatibility.

Q: What are the package differences between these parts?

A: The primary part uses 8-WFDFN (WFDFN = Wettable Flank DFN) packaging, while the substitute uses 8-UFDFN (UFDFN = Ultra-thin DFN) packaging. Both are 8-pin surface mount variants with exposed pads in 2x3mm form factor. Physical footprint compatibility should be verified against PCB design specifications.

Q: Does the substitute part's 4 MHz clock frequency create timing issues?

A: No. The substitute part's higher clock frequency is backward compatible with designs specified for 3 MHz operation. The Microwire protocol implementation in the substitute part maintains full compatibility with host controller timing requirements.

Q: Are there voltage supply considerations when substituting?

A: The primary part requires 4.5V ~ 5.5V supply voltage. The substitute part operates across 1.8V ~ 5.5V. In applications using the primary part's specified 4.5V ~ 5.5V range, the substitute part functions identically. Applications requiring lower voltage operation (1.8V ~ 4.5V) can only use the substitute part.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Moisture sensitivity level (MSL) is rated 1 (Unlimited) for both parts, indicating no moisture sensitivity restrictions during storage or handling.