93LC56-I/P EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 93LC56-I/P is a 2Kbit non-volatile EEPROM memory integrated circuit manufactured by Microchip Technology. This device operates using the Microwire serial interface protocol and is housed in an 8-pin DIP package suitable for through-hole mounting applications. The part is currently in active production status with verified programmability certification from DiGi-Electronics. Alternative equivalent parts may be required due to inventory constraints, application-specific performance requirements, or design optimization needs.

Substiute Parts

93LC56-I/P

Microchip TechnologyIn Stock: 140193LC56-I/P Datasheet

Current PartRFQ

93LC56C-I/P

Microchip TechnologyIn Stock: 120593LC56C-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 93LC56-I/P is determined by strict equivalence across the following critical parameters:

• Memory capacity (2Kbit) and organization (256 x 8, 128 x 16)
• Serial interface protocol (Microwire)
• Supply voltage compatibility (2.5V ~ 5.5V)
• Operating temperature range (-40°C ~ 85°C)
• Physical package format (8-DIP through-hole)

The 93LC56C-I/P qualifies as a direct substitute based on these parameters. Performance enhancements in clock frequency and write cycle time represent improvements that maintain full backward compatibility with existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the 93LC56-I/P and 93LC56C-I/P are active production components from Microchip Technology with full RoHS3 and REACH compliance. The 93LC56-I/P carries verified programmability certification from DiGi-Electronics. The 93LC56C-I/P offers enhanced performance specifications with 3 MHz clock frequency and 6ms write cycle time compared to the original 2 MHz and 10ms specifications. Selection between these parts should be based on application timing requirements and inventory availability, as both maintain identical electrical and mechanical compatibility within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the 93LC56C-I/P directly replace the 93LC56-I/P in existing designs?

A: Yes. The 93LC56C-I/P maintains full pin-for-pin compatibility, identical package dimensions, and equivalent electrical specifications across supply voltage and operating temperature ranges. The enhanced clock frequency and reduced write cycle time represent performance improvements that do not introduce compatibility issues.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 8-DIP (0.300", 7.62mm) through-hole package with identical pinout and mechanical dimensions, enabling direct board-level substitution without layout modifications.

Q: What is the significance of the clock frequency difference?

A: The 93LC56C-I/P operates at 3 MHz compared to the 93LC56-I/P at 2 MHz. This higher frequency enables faster serial data transfer rates. The write cycle time is correspondingly reduced from 10ms to 6ms, improving overall memory operation speed.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 93LC56-I/P and 93LC56C-I/P are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What memory capacity and organization do these parts provide?

A: Both parts provide 2Kbit total capacity organized as either 256 x 8 bits or 128 x 16 bits, depending on the application interface configuration.