93C76B-E/P EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93C76B-E/P is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol. This non-volatile memory device operates at 3 MHz clock frequency with a supply voltage range of 4.5V to 5.5V and is rated for -40°C to 125°C operating temperature. The component is housed in an 8-DIP through-hole package and maintains Active product status with ROHS3 compliance. Substitute parts are identified when equivalent memory capacity, interface protocol, package type, and electrical specifications align within acceptable operational parameters.

Substiute Parts

93C76B-E/P

Microchip TechnologyIn Stock: 126993C76B-E/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 substitute for the 93C76B-E/P based on the following alignment criteria:

Matching Parameters:

• Memory capacity: 8Kbit
• Memory format: EEPROM non-volatile technology
• Memory interface: Microwire serial protocol
• Clock frequency: 3 MHz
• Package type: 8-DIP through-hole configuration
• Mounting type: Through hole
• RoHS compliance: ROHS3 Compliant

Operational Differences: The 93LC76C-I/P operates within a broader supply voltage range (2.5V ~ 5.5V) compared to the main part (4.5V ~ 5.5V), and supports an extended operating temperature range of -40°C ~ 85°C. The write cycle time specification differs at 5ms versus 2ms for the main part. Memory organization flexibility allows 1K x 8 or 512 x 16 configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the 93C76B-E/P and 93LC76C-I/P maintain Active product status with ROHS3 compliance and REACH unaffected certification. Selection between these parts depends on application-specific requirements:

The 93C76B-E/P is suitable for applications requiring extended high-temperature operation up to 125°C and faster write cycle performance at 2ms. The 93LC76C-I/P accommodates lower supply voltage operation starting at 2.5V and provides broader voltage flexibility, though with reduced maximum operating temperature (85°C) and extended write cycle time (5ms). Both components share identical Microwire interface protocol, clock frequency, and 8-DIP package footprint, ensuring direct pin compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 93LC76C-I/P directly replace the 93C76B-E/P in existing designs?

A: Pin compatibility exists due to identical 8-DIP package configuration and Microwire interface protocol. However, verify that your application does not require the 93C76B-E/P's extended temperature range (up to 125°C) or faster 2ms write cycle time before substitution.

Q: What is the primary difference in voltage supply specifications?

A: The 93C76B-E/P requires 4.5V minimum supply voltage, while the 93LC76C-I/P operates from 2.5V minimum. Applications using lower supply voltages must use the 93LC76C-I/P.

Q: How do write cycle times affect system performance?

A: The 93C76B-E/P completes write operations in 2ms, while the 93LC76C-I/P requires 5ms. Applications with time-critical write operations should maintain the original 93C76B-E/P specification.

Q: Are both parts suitable for high-temperature industrial applications?

A: The 93C76B-E/P supports operation to 125°C, making it suitable for high-temperature environments. The 93LC76C-I/P is rated to 85°C maximum and should not be used in applications exceeding this temperature.

Q: Do both parts support identical memory organization?

A: The 93C76B-E/P is fixed at 512 x 16 organization. The 93LC76C-I/P supports flexible configuration as either 1K x 8 or 512 x 16, providing design flexibility for different addressing schemes.