93LC76CT-I/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93LC76CT-I/ST is an 8Kbit 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 85°C. The part is currently in active production status with robust inventory availability (7800 units in stock). Alternative equivalent parts may be required due to supply constraints, packaging preferences, or specific application requirements such as extended temperature ranges or automotive qualification.

Substiute Parts

93LC76CT-I/ST

Microchip TechnologyIn Stock: 787393LC76CT-I/ST Datasheet

Current PartRFQ

93LC76C-I/ST

Microchip TechnologyIn Stock: 531193LC76C-I/ST Datasheet

DirectRFQ

BR93G76FVT-3GE2

Rohm SemiconductorIn Stock: 910BR93G76FVT-3GE2 Datasheet

MFR RecommendedRFQ

CAV93C76YE-GT3

onsemiIn Stock: 1254CAV93C76YE-GT3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 93LC76CT-I/ST is determined by strict equivalence across the following critical parameters: 8Kbit memory capacity, EEPROM non-volatile memory format, Microwire serial interface protocol, 3 MHz clock frequency operation, 8-TSSOP package footprint, and surface mount mounting type. All identified substitute parts maintain these core electrical and mechanical specifications, ensuring functional interchangeability at the circuit level. Variations in packaging format (Tape & Reel versus Tube), supply voltage range extensions, temperature grade enhancements, and compliance certifications are secondary considerations that do not affect core substitutability but may influence selection based on application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

93LC76C-I/ST (Microchip Technology): Direct Microchip equivalent with identical electrical specifications and temperature range. Differs only in packaging format (Tube versus Tape & Reel) and RoHS compliance status. Selection is appropriate for applications where RoHS3 compliance is not mandated and Tube packaging is acceptable for assembly processes.

BR93G76FVT-3GE2 (Rohm Semiconductor): Manufacturer-recommended substitute offering extended supply voltage range (1.7V minimum versus 2.5V) and ROHS3 compliance. Package designation includes "-B" suffix indicating 8-TSSOP-B variant. Suitable for applications requiring lower voltage operation capability while maintaining identical memory capacity and interface specifications.

CAV93C76YE-GT3 (onsemi): Manufacturer-recommended substitute with automotive-grade qualification (AEC-Q100) and extended operating temperature range (-40°C to 125°C). Clock frequency operates at 2 MHz (reduced from 3 MHz specification). ROHS3 compliant. Selection is appropriate for automotive applications or environments requiring extended temperature performance, with the understanding that maximum clock frequency is reduced by one-third.

Frequently Asked Questions (FAQ)

Q: Can 93LC76C-I/ST be used as a direct replacement for 93LC76CT-I/ST? A: Yes. Both parts are manufactured by Microchip Technology and share identical electrical specifications, memory capacity, interface protocol, and temperature range. The primary difference is packaging format (Tube versus Tape & Reel) and RoHS compliance status. Functional interchangeability is confirmed.

Q: What is the significance of the "-B" suffix in BR93G76FVT-3GE2? A: The "-B" suffix indicates an 8-TSSOP-B package variant. While maintaining the same 0.173" width and 4.40mm footprint, this variant may have minor pinout or mechanical differences. Verification against specific PCB layout requirements is necessary before selection.

Q: Why does CAV93C76YE-GT3 operate at 2 MHz instead of 3 MHz? A: The CAV93C76YE-GT3 is specified for automotive-grade applications with extended temperature range (-40°C to 125°C). The reduced clock frequency is a design characteristic of this automotive-qualified variant. Applications requiring 3 MHz operation should select alternative parts.

Q: Is CAV93C76YE-GT3 suitable for non-automotive applications? A: Yes. Automotive-qualified components (AEC-Q100) meet or exceed industrial-grade reliability standards and can be used in non-automotive applications. The extended temperature range (-40°C to 125°C) provides additional operational margin compared to the main part specification.

Q: What are the RoHS compliance implications for part selection? A: The main part (93LC76CT-I/ST) and three substitute parts (93LC76C-I/ST, BR93G76FVT-3GE2, CAV93C76YE-GT3) carry different RoHS statuses. ROHS3-compliant parts are required for applications subject to EU RoHS Directive 2011/65/EU. The 93LC76C-I/ST is RoHS non-compliant and should not be selected for regulated applications.

Q: Are all substitute parts available in Tape & Reel packaging? A: The 93LC76CT-I/ST (main), BR93G76FVT-3GE2, and CAV93C76YE-GT3 are available in Tape & Reel format. The 93LC76C-I/ST is supplied in Tube packaging. Selection depends on assembly process requirements and inventory preferences.