93LC86BT-I/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93LC86BT-I/ST is a 16Kbit non-volatile EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol and 3 MHz clock frequency. This component is designed for applications requiring persistent data storage with low power consumption and wide supply voltage tolerance. The part is currently in active production status with 1059 units available in new original stock. Substitute parts may be required due to inventory constraints, packaging format preferences, or specific application requirements for verified programmable variants.

Substiute Parts

93LC86BT-I/ST

Microchip TechnologyIn Stock: 109393LC86BT-I/ST Datasheet

Current PartRFQ

93LC86CT-I/ST

Microchip TechnologyIn Stock: 406393LC86CT-I/ST Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 93LC86CT-I/ST qualifies as a direct substitute for the 93LC86BT-I/ST based on the following critical parameters:

Matching Electrical Specifications:

• Identical memory capacity: 16Kbit
• Identical memory interface: Microwire protocol
• Identical clock frequency: 3 MHz
• Identical write cycle time: 5ms
• Identical supply voltage range: 2.5V ~ 5.5V
• Identical operating temperature range: -40°C ~ 85°C

Matching Physical Specifications:

• Identical package type: 8-TSSOP
• Identical package dimensions: 0.173", 4.40mm Width
• Identical mounting type: Surface Mount

Compliance Equivalence:

• Both parts maintain ROHS3 compliance
• Both parts maintain MSL rating of 1 (Unlimited)
• Both parts maintain REACH Unaffected status

The primary difference between these parts is the packaging format (Tape & Reel for the substitute versus standard packaging for the main part) and the verified programmable status of the substitute variant. The substitute part supports expanded memory organization options (2K x 8 in addition to 1K x 16), providing additional flexibility without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 93LC86CT-I/ST is a qualified substitute for the 93LC86BT-I/ST in applications requiring 16Kbit Microwire EEPROM functionality. Both parts maintain identical electrical performance characteristics and physical form factors, ensuring direct compatibility at the circuit level.

Selection between these parts should be based on:

Inventory and Supply Chain Considerations: The substitute part (93LC86CT-I/ST) maintains significantly higher stock availability (4034 units versus 1059 units), providing improved supply chain reliability for high-volume production requirements.

Packaging Format Requirements: The substitute part is supplied in Tape & Reel format, which is standard for automated assembly processes. If bulk reel packaging is required for production efficiency, the substitute part is the appropriate selection.

Programmable Verification Status: The substitute part carries verified programmable status, confirming compatibility with standard programming equipment and procedures. This certification may be required for applications with strict quality assurance protocols.

Compliance Certification: Both parts maintain equivalent compliance certifications (ROHS3, REACH Unaffected, MSL 1), ensuring regulatory equivalence for all applications.

Frequently Asked Questions (FAQ)

Q: Can the 93LC86CT-I/ST be used as a direct replacement for the 93LC86BT-I/ST in existing circuit designs?

A: Yes. Both parts share identical electrical specifications, package dimensions, and pin configurations. No circuit modifications are required for substitution.

Q: What is the significance of the "Tape & Reel" packaging format for the substitute part?

A: Tape & Reel packaging is the standard format for automated surface mount assembly processes. This format improves production efficiency for high-volume manufacturing but does not affect component performance or compatibility.

Q: Are there any differences in memory organization between these parts?

A: The substitute part (93LC86CT-I/ST) supports both 2K x 8 and 1K x 16 memory organization modes, while the main part (93LC86BT-I/ST) is specified for 1K x 16 organization. Both configurations deliver identical 16Kbit total capacity and are compatible with Microwire interface protocol.

Q: What does "Programmable Verified" status indicate for the substitute part?

A: Verified programmable status confirms that the substitute part has been tested and certified for compatibility with standard EEPROM programming equipment and procedures. This certification is relevant for applications requiring in-circuit or in-system programming capabilities.

Q: Are the supply voltage and operating temperature ranges identical between these parts?

A: Yes. Both parts operate across the identical supply voltage range (2.5V ~ 5.5V) and temperature range (-40°C ~ 85°C), ensuring equivalent performance in all environmental conditions.

Q: What is the MSL (Moisture Sensitivity Level) rating for both parts?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling procedures are sufficient for storage and assembly.