93C76C-I/MS EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93C76C-I/MS 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 at 3 MHz clock frequency with a 2ms write cycle time and is housed in an 8-MSOP surface mount package. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical specifications, memory capacity, interface protocol, and physical packaging are maintained across the product line, enabling direct replacement in existing designs without circuit modification.

Substiute Parts

93C76C-I/MS

Microchip TechnologyIn Stock: 110793C76C-I/MS Datasheet

Current PartRFQ

93AA76C-I/MS

Microchip TechnologyIn Stock: 200993AA76C-I/MS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 93AA76C-I/MS qualifies as a direct substitute for the 93C76C-I/MS based on the following critical parameters:

Matching Specifications:

• Memory capacity: 8Kbit
• Memory organization: 1K x 8, 512 x 16
• Interface protocol: Microwire serial
• Clock frequency: 3 MHz
• Package type: 8-MSOP surface mount
• Operating temperature range: -40°C ~ 85°C
• Compliance certifications: RoHS3, REACH Unaffected

Substitution Basis: Both devices implement identical memory architecture, serial communication protocol, and physical form factor. The 93AA76C-I/MS maintains full functional compatibility within the specified electrical and thermal operating envelope for applications currently using the 93C76C-I/MS.

Parameter Comparison

Engineering Selection Recommendations

The 93AA76C-I/MS is suitable for direct substitution in applications currently specified for the 93C76C-I/MS. Both devices maintain Active product status with identical RoHS3 and REACH compliance certifications, ensuring regulatory continuity.

The 93AA76C-I/MS provides extended supply voltage compatibility (1.8V ~ 5.5V versus 4.5V ~ 5.5V), enabling operation in lower-voltage system architectures. The extended write cycle time (5ms versus 2ms) does not affect functional compatibility in standard EEPROM applications where write operations are not time-critical.

The MSL 2 rating of the substitute part requires standard moisture control during storage and handling, consistent with industry practice for surface mount components.

Frequently Asked Questions (FAQ)

Q: Can the 93AA76C-I/MS replace the 93C76C-I/MS in existing circuit designs?

A: Yes. Both devices implement identical 8Kbit Microwire EEPROM architecture with matching memory organization, clock frequency, and 8-MSOP package specifications. No circuit modifications are required.

Q: What is the difference in write cycle time between these parts?

A: The 93C76C-I/MS specifies 2ms write cycle time, while the 93AA76C-I/MS specifies 5ms. This difference does not affect functional compatibility in standard EEPROM applications where write operations occur at intervals significantly longer than the write cycle time.

Q: Are there voltage supply differences between these parts?

A: The 93C76C-I/MS operates at 4.5V ~ 5.5V supply voltage. The 93AA76C-I/MS operates at 1.8V ~ 5.5V, providing broader voltage compatibility. Both parts function correctly at the 4.5V ~ 5.5V range specified for the original part.

Q: Do both parts have identical package specifications?

A: Yes. Both devices use 8-MSOP surface mount packaging with 0.118" width (3.00mm). Pin assignments and footprint requirements are identical.

Q: What are the compliance and certification differences?

A: Both parts maintain RoHS3 compliance and REACH Unaffected status. The 93AA76C-I/MS carries MSL 2 rating (1 Year) compared to MSL 1 (Unlimited) for the 93C76C-I/MS, requiring standard moisture control during storage and handling.