CAT93C76LI-G Equivalent & Substitute Parts

Part Overview

The CAT93C76LI-G is an 8Kbit EEPROM memory IC utilizing Microwire serial interface protocol, manufactured by onsemi. This non-volatile memory device operates at 3 MHz clock frequency with a supply voltage range of 1.8V to 5.5V and is housed in an 8-DIP through-hole package. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

CAT93C76LI-G

onsemiIn Stock: 991CAT93C76LI-G Datasheet

Current PartRFQ

93AA76C-I/P

Microchip TechnologyIn Stock: 97193AA76C-I/P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CAT93C76LI-G is determined by strict alignment of the following critical parameters:

• Memory Capacity: 8Kbit capacity requirement
• Memory Interface Protocol: Microwire serial interface compatibility
• Memory Organization: 1K x 8 or 512 x 16 configuration support
• Clock Frequency: 3 MHz operation capability
• Voltage Supply Range: 1.8V to 5.5V compatibility
• Package Format: 8-DIP through-hole package (0.300", 7.62mm)
• Operating Temperature Range: -40°C to 85°C specification

The substitute part 93AA76C-I/P manufactured by Microchip Technology meets all specified electrical and mechanical parameters, enabling direct functional replacement in applications requiring CAT93C76LI-G performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 93AA76C-I/P from Microchip Technology is the qualified substitute for the obsolete CAT93C76LI-G. Selection of the 93AA76C-I/P is supported by:

• Complete electrical parameter alignment across memory capacity, interface protocol, clock frequency, and voltage supply specifications
• Identical mechanical compatibility through matching 8-DIP package format and through-hole mounting configuration
• Active product status ensuring ongoing availability and supply chain continuity
• ROHS3 compliance certification, providing regulatory advantage over the original component
• Equivalent REACH and ECCN classifications maintaining compliance requirements

Frequently Asked Questions (FAQ)

Q: Can the 93AA76C-I/P directly replace the CAT93C76LI-G in existing circuit designs?

A: Yes. The 93AA76C-I/P meets all specified electrical and mechanical parameters. Pin configuration, package footprint, and functional interface are identical, enabling direct substitution without circuit modification.

Q: Are there differences in write cycle time between these components?

A: The 93AA76C-I/P specifies a 5ms write cycle time for word and page operations. The CAT93C76LI-G write cycle time specification is not provided in the available data. Both components operate at 3 MHz clock frequency and support identical memory organization.

Q: What is the significance of the product status difference?

A: The CAT93C76LI-G is classified as obsolete, indicating discontinued manufacturing and limited future availability. The 93AA76C-I/P maintains active product status, ensuring reliable procurement and manufacturer support for new designs and ongoing production requirements.

Q: Does the ROHS3 compliance of the 93AA76C-I/P affect compatibility?

A: No. ROHS3 compliance is a manufacturing and environmental standard that does not impact electrical or mechanical compatibility. This certification provides regulatory advantage for applications subject to environmental compliance requirements.

Q: Are the Microwire interface protocols identical between both components?

A: Yes. Both components implement the Microwire serial interface protocol at 3 MHz clock frequency with identical memory organization (1K x 8 or 512 x 16), ensuring protocol-level compatibility.