93LC86C-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93LC86C-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 supports industrial temperature ranges from -40°C to 125°C. The component is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level rating. Alternative equivalent parts may be required due to inventory availability, specific automotive qualification requirements, or application-specific performance parameters such as clock frequency specifications.

Key Parameters

Parameter	Specification
Memory Type	Non-Volatile EEPROM
Memory Size	16Kbit
Memory Organization	2K x 8, 1K x 16
Memory Interface	Microwire
Clock Frequency	3 MHz
Supply Voltage Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package Type	8-TSSOP (0.173", 4.40mm Width)
Write Cycle Time	5ms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 93LC86C-E/ST is determined by strict equivalence across the following critical parameters: memory capacity (16Kbit), memory organization (2K x 8 or 1K x 16 configuration), Microwire serial interface protocol, supply voltage compatibility (2.5V ~ 5.5V), operating temperature range (-40°C ~ 125°C), and physical package format (8-TSSOP). The substitute part CAV93C86YE-GT3 meets all these core electrical and mechanical requirements. Secondary differentiators include clock frequency (3 MHz for the main part versus 2 MHz for the substitute), packaging format (Tube versus Tape & Reel), and automotive-grade qualification status (AEC-Q100 for the substitute). These secondary parameters do not prevent functional substitution but may influence selection based on application requirements and supply chain considerations.

Parameter Comparison

Parameter	93LC86C-E/ST (Microchip)	CAV93C86YE-GT3 (onsemi)	Compatibility
Memory Type	Non-Volatile EEPROM	Non-Volatile EEPROM	Equivalent
Memory Size	16Kbit	16Kbit	Equivalent
Memory Organization	2K x 8, 1K x 16	2K x 8, 1K x 16	Equivalent
Memory Interface	Microwire	Microwire	Equivalent
Clock Frequency	3 MHz	2 MHz	Compatible (lower frequency)
Supply Voltage Range	2.5V ~ 5.5V	2.5V ~ 5.5V	Equivalent
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	Equivalent
Package / Case	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP (0.173", 4.40mm Width)	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Packaging Format	Tube	Tape & Reel (TR)	Different (logistics only)
Automotive Qualification	Not specified	AEC-Q100	Substitute has additional qualification

Engineering Selection Recommendations

The CAV93C86YE-GT3 manufactured by onsemi is a direct functional equivalent to the 93LC86C-E/ST. Both devices share identical memory capacity, organization, interface protocol, voltage specifications, and temperature operating range. The substitute part operates at 2 MHz clock frequency compared to the main part's 3 MHz specification; this lower frequency remains compatible with applications designed for the 93LC86C-E/ST, as the substitute will not exceed the timing requirements of circuits expecting the higher frequency device. The CAV93C86YE-GT3 carries AEC-Q100 automotive qualification, making it suitable for automotive-grade applications where such certification is mandated. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings. Selection between these parts should be based on supply chain availability, packaging requirements (Tube versus Tape & Reel), and whether automotive qualification is a system requirement.

Frequently Asked Questions (FAQ)

Q: Can the CAV93C86YE-GT3 directly replace the 93LC86C-E/ST in existing designs?

A: Yes. Both devices are pin-compatible 8-TSSOP packages with identical electrical specifications for memory capacity, organization, interface protocol, supply voltage, and operating temperature range. The substitute's 2 MHz clock frequency is compatible with applications designed for the 3 MHz main part.

Q: What is the significance of the 1 MHz clock frequency difference?

A: The CAV93C86YE-GT3 operates at 2 MHz versus the 93LC86C-E/ST's 3 MHz. This lower frequency does not create compatibility issues for existing designs, as the substitute will meet or exceed all timing requirements of circuits expecting the higher frequency device.

Q: Does the AEC-Q100 qualification on the substitute part affect compatibility?

A: No. AEC-Q100 qualification on the CAV93C86YE-GT3 represents an additional certification that does not impact electrical or mechanical compatibility. Applications not requiring automotive qualification can use either part; applications requiring automotive-grade components should specify the CAV93C86YE-GT3.

Q: Are there differences in packaging that affect component selection?

A: The 93LC86C-E/ST is supplied in Tube packaging, while the CAV93C86YE-GT3 is supplied in Tape & Reel format. Both contain identical die and electrical specifications. Packaging format selection depends on assembly process requirements and inventory management practices.

Q: What compliance certifications apply to both parts?

A: Both the 93LC86C-E/ST and CAV93C86YE-GT3 are ROHS3 compliant, REACH unaffected, and carry unlimited moisture sensitivity level (MSL 1) ratings. Both are classified under ECCN EAR99 and HTSUS code 8542.32.0051.

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