93LC86CT-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93LC86CT-E/ST is a 16Kbit EEPROM memory integrated circuit manufactured by Microchip Technology, designed for non-volatile data storage applications requiring Microwire serial interface communication. This device operates across a wide supply voltage range of 2.5V to 5.5V and maintains functionality across industrial temperature ranges from -40°C to 125°C. The component is currently in active production status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications, memory capacity, interface protocol, and physical packaging are maintained across alternative manufacturers, ensuring functional interchangeability in system designs.

Substiute Parts

93LC86CT-E/ST

Microchip TechnologyIn Stock: 105393LC86CT-E/ST Datasheet

Current PartRFQ

CAV93C86YE-GT3

onsemiIn Stock: 4172CAV93C86YE-GT3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 93LC86CT-E/ST is determined by strict equivalence across the following critical parameters:

• Memory capacity of 16Kbit with identical 2K x 8 or 1K x 16 organization
• Microwire serial interface protocol compatibility
• Supply voltage range encompassing 2.5V to 5.5V minimum
• Operating temperature range of -40°C to 125°C or broader
• Identical 8-TSSOP surface mount package footprint
• ROHS3 compliance and equivalent regulatory status

The substitute part CAV93C86YE-GT3 manufactured by onsemi meets all these criteria. This part maintains functional equivalence while offering automotive-grade qualification under AEC-Q100 standard, providing enhanced reliability for demanding applications.

Parameter Comparison

Engineering Selection Recommendations

The CAV93C86YE-GT3 serves as a direct functional substitute for the 93LC86CT-E/ST in applications where component availability or supply chain requirements necessitate alternative sourcing. Both devices maintain identical memory capacity, interface protocol, voltage specifications, and temperature operating range. The primary distinction is the automotive-grade qualification of the onsemi part under AEC-Q100 standard, which indicates enhanced reliability screening and qualification processes suitable for automotive and high-reliability applications. The clock frequency difference of 3 MHz versus 2 MHz does not affect substitution eligibility, as the lower frequency of the substitute part remains compatible with system timing requirements. Both parts maintain ROHS3 compliance and equivalent regulatory status.

Frequently Asked Questions (FAQ)

Q: Can the CAV93C86YE-GT3 be used as a direct replacement for the 93LC86CT-E/ST in existing PCB designs?

A: Yes. Both parts share identical 8-TSSOP package footprints, pin configurations, and electrical interface specifications. No PCB layout modifications are required for substitution.

Q: What is the significance of the clock frequency difference between 3 MHz and 2 MHz?

A: The substitute part operates at 2 MHz maximum clock frequency compared to 3 MHz for the original part. This represents a lower maximum operating speed. System designs must verify that their Microwire interface timing requirements are compatible with 2 MHz operation. In most applications, this lower frequency remains functionally adequate.

Q: Does the automotive-grade qualification of the CAV93C86YE-GT3 affect its use in non-automotive applications?

A: No. Automotive-grade qualification indicates additional reliability screening and qualification testing. This part is fully compatible with standard industrial and commercial applications and offers enhanced reliability margins.

Q: Are the memory organization and interface protocol identical between these parts?

A: Yes. Both devices provide 16Kbit capacity with 2K x 8 or 1K x 16 organization options and utilize identical Microwire serial interface protocol. No firmware or software modifications are required for substitution.

Q: What is the moisture sensitivity level for both parts?

A: Both the 93LC86CT-E/ST and CAV93C86YE-GT3 carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.