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

Part Overview

The 93LC76CT-E/ST is an 8Kbit EEPROM memory IC 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 and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications, memory capacity, interface protocol, and physical packaging are maintained across different manufacturers.

Substiute Parts

93LC76CT-E/ST

Microchip TechnologyIn Stock: 102493LC76CT-E/ST Datasheet

Current PartRFQ

CAV93C76YE-GT3

onsemiIn Stock: 1254CAV93C76YE-GT3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 93LC76CT-E/ST are qualified based on the following critical parameters that must remain constant:

• Memory capacity of 8Kbit with identical 1K x 8 or 512 x 16 organization
• Microwire serial interface protocol compatibility
• Supply voltage range of 2.5V to 5.5V
• Operating temperature range of -40°C to 125°C
• 8-TSSOP surface mount package with 0.173" width (4.40mm)
• ROHS3 compliance and REACH unaffected status
• Non-volatile EEPROM technology

The CAV93C76YE-GT3 meets all these criteria and is therefore qualified as a direct substitute. Clock frequency variation (2 MHz versus 3 MHz) does not disqualify substitution, as the lower frequency remains compatible with Microwire protocol requirements. Automotive-grade qualification (AEC-Q100) of the substitute part represents an enhancement rather than a limitation for general industrial applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 93LC76CT-E/ST and CAV93C76YE-GT3 are active production components with ROHS3 compliance and REACH unaffected status, making them suitable for new designs and legacy system replacements. The CAV93C76YE-GT3 carries AEC-Q100 automotive qualification, which provides additional reliability assurance through automotive-grade testing protocols. This qualification does not restrict use in non-automotive applications and may be advantageous for applications requiring enhanced reliability documentation. Selection between these parts should be based on manufacturer availability, lead time, and supply chain requirements, as both meet identical functional and environmental specifications for Microwire EEPROM applications.

Frequently Asked Questions (FAQ)

Q: Can the CAV93C76YE-GT3 directly replace the 93LC76CT-E/ST in existing designs?

A: Yes. Both devices share identical memory capacity (8Kbit), memory organization (1K x 8, 512 x 16), Microwire interface protocol, supply voltage range (2.5V ~ 5.5V), operating temperature range (-40°C ~ 125°C), and 8-TSSOP package dimensions. The lower clock frequency of the CAV93C76YE-GT3 (2 MHz versus 3 MHz) does not prevent substitution, as both frequencies support Microwire protocol operation.

Q: What is the significance of the AEC-Q100 qualification on the CAV93C76YE-GT3?

A: AEC-Q100 is an automotive industry qualification standard that certifies components have undergone rigorous reliability testing. While the CAV93C76YE-GT3 is qualified for automotive applications, this certification does not restrict its use in industrial or consumer applications and indicates enhanced quality assurance.

Q: Are there any electrical performance differences between these parts?

A: The primary electrical difference is clock frequency: the 93LC76CT-E/ST operates at 3 MHz while the CAV93C76YE-GT3 operates at 2 MHz. Both frequencies are compatible with Microwire protocol requirements. Write cycle time for the 93LC76CT-E/ST is specified at 5ms; write cycle time for the CAV93C76YE-GT3 is not specified in available data but does not disqualify substitution.

Q: Do both parts have identical moisture sensitivity levels?

A: Yes. Both the 93LC76CT-E/ST and CAV93C76YE-GT3 have Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Are there any compliance or regulatory differences?

A: Both parts are ROHS3 compliant and REACH unaffected. Both carry identical ECCN (EAR99) and HTSUS (8542.32.0051) classifications, indicating no regulatory barriers to substitution.