Equivalent & Substitute Parts for 24LC025/P

Part Overview

The 24LC025/P is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. Housed in an 8-DIP package, this non-volatile memory device operates across a supply voltage range of 2.5V to 5.5V and temperature range of 0°C to 70°C. The device is ROHS3 compliant and maintains active product status. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and extended operating condition coverage when the primary part becomes unavailable or when application requirements demand enhanced performance specifications.

Substiute Parts

24LC025/P

Microchip TechnologyIn Stock: 306724LC025/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

24LC024-I/P

Microchip TechnologyIn Stock: 299624LC024-I/P Datasheet

MFR RecommendedRFQ

24LC02B-E/P

Microchip TechnologyIn Stock: 160924LC02B-E/P Datasheet

MFR RecommendedRFQ

24LC02B-I/P

Microchip TechnologyIn Stock: 538624LC02B-I/P Datasheet

MFR RecommendedRFQ

24LCS22A-I/P

Microchip TechnologyIn Stock: 295024LCS22A-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

24LC024/P

Microchip TechnologyIn Stock: 225524LC024/P Datasheet

Parametric EquivalentRFQ

24LC02B/P

Microchip TechnologyIn Stock: 1513224LC02B/P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24LC025/P are classified based on electrical and mechanical compatibility within the following criteria:

Core Compatibility Parameters:

• Memory Size: 2Kbit (256 x 8 organization)
• Memory Interface: I2C protocol
• Package Type: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Memory Format: EEPROM, Non-Volatile

Substitution Categories:

Category 1: Direct Electrical Equivalents (400 kHz I2C) Parts maintaining 400 kHz clock frequency and 900 ns access time with compatible voltage and temperature ranges: 24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 24LC024-I/P, 24LC02B-E/P, 24LC02B-I/P, 24LCS22A-I/P, 34AA02-I/P

Category 2: Enhanced Performance Substitutes (1 MHz I2C) Parts offering higher clock frequency (1 MHz) with improved access time (400-550 ns), providing backward compatibility with 400 kHz systems: 34LC02-I/P, AT24HC02C-PUM

Voltage Range Considerations:

• 24LC025/P operates 2.5V ~ 5.5V
• Substitutes with 1.7V ~ 5.5V range (24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 34AA02-I/P, AT24HC02C-PUM) provide extended low-voltage capability
• Substitutes with 2.2V ~ 5.5V range (34LC02-I/P) provide moderate low-voltage extension

Temperature Range Considerations:

• 24LC025/P operates 0°C ~ 70°C
• Extended temperature substitutes support -40°C ~ 85°C or -40°C ~ 125°C ranges for industrial applications

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (400 kHz Operation):

24LC02B-I/P is the primary substitute when maintaining identical electrical specifications is required. This part is ROHS3 compliant, carries verified DiGi-Electronics programmable status, maintains the 2.5V ~ 5.5V supply range of the original 24LC025/P, and offers extended temperature operation to -40°C ~ 85°C. Inventory availability is substantial at 5310 units.

24LC024-I/P provides equivalent 400 kHz performance with 2.5V ~ 5.5V supply compatibility and extended temperature range (-40°C ~ 85°C). This part maintains ROHS3 compliance with 2950 units in stock.

For Extended Low-Voltage Applications:

24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, and 34AA02-I/P support reduced supply voltage operation (1.7V ~ 5.5V) while maintaining 400 kHz I2C performance. These parts are ROHS3 compliant and support -40°C ~ 85°C temperature range. 24AA02-I/P carries verified DiGi-Electronics programmable status.

For Enhanced Temperature Range:

24LC02B-E/P extends operating temperature to -40°C ~ 125°C while maintaining 400 kHz operation and 2.5V ~ 5.5V supply range. This part is ROHS3 compliant with verified DiGi-Electronics programmable status and 1503 units available.

For Higher Clock Frequency Applications:

34LC02-I/P and AT24HC02C-PUM operate at 1 MHz I2C frequency with improved access times (400 ns and 550 ns respectively). Both parts are ROHS3 compliant and support -40°C ~ 85°C operation. AT24HC02C-PUM offers the widest supply range (1.7V ~ 5.5V) with highest inventory (6136 units). These parts provide backward compatibility with 400 kHz systems through I2C protocol flexibility.

Inventory Considerations:

AT24HC02C-PUM (6136 units) and 24LC02B-I/P (5310 units) offer the highest stock levels for immediate availability. 24LC025/P maintains 2998 units in current inventory.

Frequently Asked Questions (FAQ)

Q: Can 24AA02-I/P directly replace 24LC025/P in all applications?

A: 24AA02-I/P is electrically compatible for I2C communication and memory organization. However, it operates at 1.7V minimum supply voltage compared to 24LC025/P's 2.5V minimum. If your application requires 2.5V minimum supply, verify that your power supply meets this threshold. The extended temperature range (-40°C ~ 85°C) of 24AA02-I/P exceeds the original part's 0°C ~ 70°C range, making it suitable for wider temperature environments.

Q: What is the difference between 24LC02B-I/P and 24LC02B-E/P?

A: Both parts maintain identical electrical specifications for I2C operation, memory size, and supply voltage (2.5V ~ 5.5V). The primary difference is operating temperature range: 24LC02B-I/P operates -40°C ~ 85°C, while 24LC02B-E/P extends to -40°C ~ 125°C. Select 24LC02B-E/P for high-temperature industrial applications.

Q: Why does 24LCS22A-I/P have a 10 ms write cycle time instead of 5 ms?

A: 24LCS22A-I/P maintains all other electrical parameters identical to 24LC025/P but specifies a longer write cycle time. This part remains functionally compatible for applications where write cycle timing is not performance-critical. Verify your application's write timing requirements before selection.

Q: Are 34LC02-I/P and AT24HC02C-PUM backward compatible with 400 kHz I2C systems?

A: Yes. Both parts operate at 1 MHz I2C frequency but maintain I2C protocol compatibility. I2C bus masters operating at 400 kHz will communicate successfully with these 1 MHz-capable devices. The faster access times (400 ns for 34LC02-I/P, 550 ns for AT24HC02C-PUM) compared to 900 ns for 24LC025/P provide performance margin without affecting compatibility.

Q: What supply voltage range should I verify for my application?

A: The 24LC025/P operates 2.5V ~ 5.5V. Substitutes with 1.7V ~ 5.5V range (24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 34AA02-I/P, AT24HC02C-PUM) require verification that your power supply does not drop below 1.7V during operation. Substitutes with 2.2V ~ 5.5V range (34LC02-I/P) require verification that your power supply does not drop below 2.2V. If your application maintains 2.5V minimum, all substitutes are compatible.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the environmental compliance of the original 24LC025/P.

Q: Can I use these parts interchangeably in existing PCB designs?

A: Yes. All substitute parts use identical 8-DIP package dimensions (0.300", 7.62mm) with through-hole mounting, ensuring direct PCB footprint compatibility. No layout modifications are required for mechanical substitution.