Equivalent & Substitute Parts for 24LCS52-I/P

Part Overview

The 24LCS52-I/P is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. This device is housed in an 8-PDIP package and operates across a supply voltage range of 2.2V to 5.5V with an operating temperature range of -40°C to 85°C. The part maintains Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity for applications requiring 2Kbit I2C EEPROM functionality.

Substiute Parts

24LCS52-I/P

Microchip TechnologyIn Stock: 98724LCS52-I/P Datasheet

Current PartRFQ

24AA02-I/P

Microchip TechnologyIn Stock: 128824AA02-I/P Datasheet

MFR RecommendedRFQ

24AA024-I/P

Microchip TechnologyIn Stock: 198524AA024-I/P Datasheet

MFR RecommendedRFQ

24AA024H-I/P

Microchip TechnologyIn Stock: 189024AA024H-I/P Datasheet

MFR RecommendedRFQ

34AA02-I/P

Microchip TechnologyIn Stock: 295734AA02-I/P Datasheet

MFR RecommendedRFQ

34LC02-I/P

Microchip TechnologyIn Stock: 117034LC02-I/P Datasheet

MFR RecommendedRFQ

AT24HC02C-PUM

Microchip TechnologyIn Stock: 6177AT24HC02C-PUM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24LCS52-I/P are grouped based on strict electrical and mechanical parameter compatibility. The primary substitution criteria are:

Core Compatibility Parameters:

• Memory Size: 2Kbit (fixed requirement)
• Memory Organization: 256 x 8 (fixed requirement)
• Memory Interface: I2C (fixed requirement)
• Package Type: 8-DIP (0.300", 7.62mm) (fixed requirement)
• Mounting Type: Through Hole (fixed requirement)
• Operating Temperature Range: -40°C ~ 85°C (fixed requirement)

Variable Parameters Allowing Substitution:

• Clock Frequency: 400 kHz or higher (backward compatible)
• Access Time: 900 ns or faster (backward compatible)
• Voltage Supply Range: Must encompass or match the application requirement

Group 1 - Direct Equivalents (400 kHz Operation): Parts maintaining 400 kHz clock frequency with identical or superior electrical characteristics: 24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 34AA02-I/P

Group 2 - Enhanced Performance Substitutes (1 MHz Operation): Parts operating at 1 MHz with faster access times, suitable for applications requiring higher speed I2C operation: 34LC02-I/P, AT24HC02C-PUM

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (400 kHz I2C Operation):

24AA02-I/P is the primary recommended substitute. It maintains identical clock frequency and access time specifications while offering extended lower voltage operation (1.7V minimum). This part carries Active product status and DiGi-Electronics Programmable verification, matching the qualification level of the 24LCS52-I/P.

24AA024-I/P and 24AA024H-I/P provide equivalent electrical performance at 400 kHz operation with extended voltage range (1.7V ~ 5.5V). Both maintain Active product status. Selection between these variants depends on specific application requirements not specified in the parameter set.

34AA02-I/P offers identical electrical specifications to the 24AA024 series with Active product status and extended lower voltage operation.

For Enhanced Performance (1 MHz I2C Operation):

34LC02-I/P operates at 1 MHz with 400 ns access time, providing faster I2C communication capability. Voltage supply range matches the 24LCS52-I/P (2.2V ~ 5.5V). This part is suitable for applications requiring higher speed I2C operation while maintaining voltage compatibility.

AT24HC02C-PUM operates at 1 MHz with 550 ns access time and supports extended lower voltage operation (1.7V ~ 5.5V). This part provides the broadest voltage compatibility among all substitutes.

All substitute parts maintain RoHS3 compliance, REACH unaffected status, and identical package specifications (8-DIP, 0.300", 7.62mm).

Frequently Asked Questions (FAQ)

Q: Can 24AA02-I/P directly replace 24LCS52-I/P in existing designs?

A: Yes. Both parts share identical memory size (2Kbit), organization (256 x 8), I2C interface, clock frequency (400 kHz), access time (900 ns), and package type (8-DIP). The 24AA02-I/P extends the lower voltage limit to 1.7V, making it compatible with applications operating at 2.2V and above.

Q: What is the difference between 400 kHz and 1 MHz clock frequency substitutes?

A: Clock frequency determines I2C bus speed. The 24LCS52-I/P operates at 400 kHz. Substitutes operating at 1 MHz (34LC02-I/P, AT24HC02C-PUM) support faster I2C communication. These parts are backward compatible with 400 kHz bus operation but enable higher speed operation when the I2C master supports 1 MHz frequency.

Q: Are all substitute parts in the same 8-DIP package?

A: Yes. All listed substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package, ensuring identical PCB footprint and mounting compatibility.

Q: What does "DiGi-Electronics Programmable Verified" mean?

A: This designation indicates the part has been tested and verified for programmability by DiGi-Electronics. The 24LCS52-I/P and 24AA02-I/P carry this verification. Other substitutes have not undergone this specific verification process.

Q: Can I use AT24HC02C-PUM if my application requires 2.2V minimum supply voltage?

A: AT24HC02C-PUM supports 1.7V ~ 5.5V operation, which encompasses the 2.2V minimum requirement. The part is fully compatible with applications requiring 2.2V minimum supply voltage.

Q: What is the significance of different access times (900 ns vs. 400 ns vs. 550 ns)?

A: Access time defines the delay from I2C address/command transmission to data availability. Faster access times (400 ns, 550 ns) enable quicker data retrieval compared to 900 ns. All values are within typical I2C timing requirements and are backward compatible for applications designed around 900 ns access time.