Equivalent & Substitute Parts for 24LC024H-I/P

Part Overview

The 24LC024H-I/P is a 2Kbit EEPROM memory integrated circuit manufactured by Microchip Technology, designed for I2C serial communication applications. This non-volatile memory device operates at 1 MHz clock frequency with 400 ns access time and is housed in an 8-PDIP through-hole package. The part is currently active in production with 644 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements demand alternative electrical specifications, or when supply chain optimization requires component standardization across product lines. The substitute parts listed maintain functional equivalence through identical memory capacity, organization, and interface protocol while offering variations in clock frequency, access time, and supply voltage ranges.

Substiute Parts

24LC024H-I/P

Microchip TechnologyIn Stock: 74624LC024H-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

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

AT24C02C-PUM

Microchip TechnologyIn Stock: 50124AT24C02C-PUM Datasheet

MFR RecommendedRFQ

AT24HC02C-PUM

Microchip TechnologyIn Stock: 6177AT24HC02C-PUM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC024H-I/P is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Memory Size: 2Kbit (all substitutes must match)
• Memory Organization: 256 x 8 (all substitutes must match)
• Memory Interface: I2C (all substitutes must match)
• Package Type: 8-DIP (0.300", 7.62mm) (all substitutes must match)
• Mounting Type: Through Hole (all substitutes must match)

Variable Parameters Allowing Substitution:

• Clock Frequency: 1 MHz (main part) vs. 400 kHz (most substitutes) — lower frequency substitutes operate within the main part's timing envelope
• Access Time: 400 ns (main part) vs. 900 ns (most substitutes) — slower access times are compatible in non-time-critical applications
• Supply Voltage Range: 2.5V ~ 5.5V (main part) vs. 1.7V ~ 5.5V (some substitutes) — wider voltage ranges provide greater design flexibility
• Operating Temperature: -40°C ~ 85°C (main part) vs. -40°C ~ 125°C (24LC02B-E/P) — extended temperature range offers broader environmental compatibility

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory equivalence with the primary part.

Parameter Comparison

Engineering Selection Recommendations

Direct Functional Equivalents (1 MHz Operation):

The 34LC02-I/P and AT24C02C-PUM maintain the 1 MHz clock frequency and 400 ns access time specifications of the primary part. The 34LC02-I/P operates within a 2.2V ~ 5.5V supply range, while the AT24C02C-PUM extends to 1.7V ~ 5.5V. The AT24C02C-PUM carries verified programmability status and maintains the highest inventory level (50,100 units), providing superior supply chain availability. Both parts are ROHS3 compliant and REACH unaffected.

Reduced Frequency Substitutes (400 kHz Operation):

Parts operating at 400 kHz (24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 24LC024-I/P, 24LC02B-E/P, 24LC02B-I/P, 24LCS22A-I/P, 34AA02-I/P) are functionally compatible with the primary part in applications where lower clock frequency is acceptable. These substitutes exhibit 900 ns access time, which is slower than the primary part but remains within standard I2C timing parameters. The 24LC02B-I/P offers the highest inventory (5,310 units) among 400 kHz options and carries verified programmability status. The 24LC02B-E/P extends the operating temperature range to -40°C ~ 125°C, suitable for high-temperature environments.

Supply Voltage Considerations:

Parts with 1.7V ~ 5.5V supply range (24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 34AA02-I/P, AT24C02C-PUM) accommodate lower voltage applications compared to the primary part's 2.5V minimum. Parts maintaining 2.5V ~ 5.5V (24LC024-I/P, 24LC02B-E/P, 24LC02B-I/P, 24LCS22A-I/P) are directly compatible with the primary part's voltage specifications.

Write Cycle Time Variation:

The 24LCS22A-I/P specifies 10 ms write cycle time compared to 5 ms for all other parts. This extended write cycle time is acceptable in applications where write operation frequency is not time-critical.

Programmability Verification:

Parts with verified programmability status (24AA02-I/P, 24LC02B-E/P, 24LC02B-I/P, AT24C02C-PUM) have undergone functional validation and are recommended for applications requiring confirmed device functionality.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 400 kHz part for the 1 MHz 24LC024H-I/P?

A: Yes. The 400 kHz parts (24LC024-I/P, 24LC02B-I/P, 24LC02B-E/P, 24LCS22A-I/P, 24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 34AA02-I/P) are functionally compatible. The lower clock frequency operates within I2C protocol specifications. Applications must accommodate the 900 ns access time instead of 400 ns. This substitution is suitable for non-time-critical data access operations.

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

A: Both parts are identical except for operating temperature range. The 24LC02B-I/P operates from -40°C to 85°C (industrial grade), while the 24LC02B-E/P operates from -40°C to 125°C (extended temperature grade). Select 24LC02B-E/P for applications requiring operation in elevated temperature environments.

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 with identical pinout and mechanical dimensions. Direct board-level substitution is possible without PCB redesign.

Q: Which substitute part has the best supply availability?

A: The AT24C02C-PUM has the highest inventory level at 50,100 units. This part maintains 1 MHz operation and 400 ns access time matching the primary part, with extended supply voltage range (1.7V ~ 5.5V) and verified programmability status.

Q: Can I use a part with 1.7V minimum supply voltage in a 2.5V system?

A: Yes. Parts with 1.7V ~ 5.5V supply range (24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 34AA02-I/P, AT24C02C-PUM) are fully compatible with 2.5V systems. The wider voltage range provides design flexibility without compromising operation at higher voltages.

Q: What does "verified programmability" mean?

A: Verified programmability indicates the part has undergone functional testing to confirm proper EEPROM read/write operation. Parts with this status (24AA02-I/P, 24LC02B-E/P, 24LC02B-I/P, AT24C02C-PUM) are recommended for applications where device functionality confirmation is required before deployment.

Q: Is the 24LCS22A-I/P compatible despite its 10 ms write cycle time?

A: Yes. The 24LCS22A-I/P is functionally compatible. The 10 ms write cycle time is longer than the standard 5 ms, but this affects only the duration of write operations. This part is suitable for applications where write operation frequency is not time-critical.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the primary 24LC024H-I/P part.