93C76A-I/P EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93C76A-I/P 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-DIP through-hole package. The part maintains Active product status and is ROHS3 compliant, making it suitable for current production environments. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, end-of-life considerations, or design flexibility needs.

Substiute Parts

93C76A-I/P

Microchip TechnologyIn Stock: 101693C76A-I/P Datasheet

Current PartRFQ

93LC76C-I/P

Microchip TechnologyIn Stock: 555793LC76C-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 93LC76C-I/P qualifies as a direct substitute based on the following critical parameters that determine functional compatibility:

• Memory Capacity & Organization: Both devices provide 8Kbit storage with Microwire interface protocol
• Package & Mounting: Identical 8-DIP through-hole package (0.300", 7.62mm) ensures mechanical compatibility
• Clock Frequency: Both operate at 3 MHz, maintaining interface timing requirements
• Operating Temperature Range: Both support -40°C ~ 85°C operating conditions
• Compliance & Certifications: Both are ROHS3 compliant with REACH Unaffected status

The 93LC76C-I/P extends the supply voltage range to 2.5V ~ 5.5V and increases write cycle time to 5ms, representing enhanced flexibility in power supply design while maintaining functional equivalence for standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 93C76A-I/P and 93LC76C-I/P maintain Active product status from Microchip Technology, ensuring continued manufacturing support and supply chain stability. Selection between these devices should be based on supply voltage requirements: the 93C76A-I/P operates within the 4.5V ~ 5.5V range, while the 93LC76C-I/P extends compatibility to 2.5V ~ 5.5V supplies. The 93LC76C-I/P offers broader voltage flexibility for low-power applications. Both devices carry identical ROHS3 compliance and REACH Unaffected certifications, meeting current regulatory requirements for industrial and commercial applications. The extended write cycle time of the 93LC76C-I/P (5ms versus 2ms) does not impact functional compatibility in standard sequential write operations.

Frequently Asked Questions (FAQ)

Q: Can the 93LC76C-I/P directly replace the 93C76A-I/P in existing designs?

A: Yes. Both devices share identical memory capacity (8Kbit), Microwire interface protocol, clock frequency (3 MHz), operating temperature range (-40°C ~ 85°C), and 8-DIP package footprint. Direct pin-for-pin substitution is supported.

Q: What is the primary difference between these two parts?

A: The 93LC76C-I/P supports a lower minimum supply voltage (2.5V versus 4.5V) and has a longer write cycle time (5ms versus 2ms). These differences do not affect functional compatibility in standard applications.

Q: Are there any package or mounting considerations for substitution?

A: No. Both devices use identical 8-DIP through-hole packaging (0.300", 7.62mm), ensuring mechanical and electrical compatibility on PCB layouts designed for either part.

Q: Do both parts meet current compliance standards?

A: Yes. Both the 93C76A-I/P and 93LC76C-I/P are ROHS3 compliant and REACH Unaffected, meeting current regulatory requirements for industrial and commercial applications.

Q: Which part should be selected for low-voltage applications?

A: The 93LC76C-I/P is the appropriate choice for applications requiring operation below 4.5V, as it supports supply voltages down to 2.5V.