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24AA024H-I/MS EEPROM Memory IC Equivalent & Substitute Parts
Part Overview
The 24AA024H-I/MS is a 2Kbit I2C EEPROM memory integrated circuit manufactured by Microchip Technology. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time and is housed in an 8-MSOP surface mount package. The part is currently active and in production with 1144 units in stock.
Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for compatible alternatives from qualified manufacturers. This reference provides direct electrical and mechanical equivalents based on identical or compatible parameter specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Memory Type | Non-Volatile EEPROM |
| Memory Size | 2Kbit |
| Memory Organization | 256 x 8 |
| Memory Interface | I2C |
| Clock Frequency | 400 kHz |
| Access Time | 900 ns |
| Write Cycle Time | 5 ms |
| Supply Voltage Range | 1.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-MSOP (0.118", 3.00mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 24AA024H-I/MS is determined by the following critical parameters:
Primary Substitution Criteria:
- Memory Size: 2Kbit (256 x 8 organization)
- Memory Interface: I2C protocol
- Clock Frequency: 400 kHz minimum
- Supply Voltage Range: Must encompass or be compatible with 1.7V ~ 5.5V
- Operating Temperature: -40°C ~ 85°C minimum
- Mounting Type: Surface Mount
- Package Format: 8-MSOP or compatible 8-pin surface mount variants
Secondary Compatibility Factors:
- Write Cycle Time: 5 ms
- Access Time: 900 ns or faster
- RoHS3 Compliance
- Moisture Sensitivity Level: 1 (Unlimited)
Substitute parts are grouped into three categories:
-
Parametric Equivalents (Microchip Technology): Parts with identical electrical specifications and compatible packaging from the same manufacturer.
-
Manufacturer Recommended Alternatives (Rohm Semiconductor): Parts meeting all critical electrical parameters with potential variations in supply voltage range, operating temperature grade, or package physical dimensions while maintaining functional compatibility.
-
Cross-Manufacturer Substitutes: Parts from alternative manufacturers meeting core memory specifications and I2C interface requirements.
Parameter Comparison
| Part Number | Manufacturer | Memory Size | Clock Frequency | Supply Voltage | Operating Temperature | Package | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|
| 24AA024H-I/MS | Microchip Technology | 2Kbit | 400 kHz | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-MSOP | Active | 1144 Pcs |
| 24AA02-I/MS | Microchip Technology | 2Kbit | 400 kHz | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-MSOP | Active | 1620 Pcs |
| 24AA025-I/MS | Microchip Technology | 2Kbit | 400 kHz | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-MSOP | Active | 783 Pcs |
| BR24A02FVM-WMTR | Rohm Semiconductor | 2Kbit | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 105°C | 8-MSOP | Active | 1390 Pcs |
| BR24G02FVJ-3AGTE2 | Rohm Semiconductor | 2Kbit | 1 MHz | 1.6V ~ 5.5V | -40°C ~ 85°C | 8-TSSOP | Active | 1723 Pcs |
| BR24G02FVJ-3GTE2 | Rohm Semiconductor | 2Kbit | 400 kHz | 1.6V ~ 5.5V | -40°C ~ 85°C | 8-TSSOP | Not For New Designs | 2600 Pcs |
| BR24G02FVM-3GTTR | Rohm Semiconductor | 2Kbit | 400 kHz | 1.6V ~ 5.5V | -40°C ~ 85°C | 8-MSOP | Active | 2710 Pcs |
| BR24L02FVM-WTR | Rohm Semiconductor | 2Kbit | 400 kHz | 1.8V ~ 5.5V | -40°C ~ 85°C | 8-MSOP | Active | 2200 Pcs |
| BR24T02FVJ-WE2 | Rohm Semiconductor | 2Kbit | 400 kHz | 1.6V ~ 5.5V | -40°C ~ 85°C | 8-TSSOP | Not For New Designs | 3700 Pcs |
| BR24T02FVJ-WGE2 | Rohm Semiconductor | 2Kbit | 400 kHz | 1.6V ~ 5.5V | -40°C ~ 85°C | 8-TSSOP | Obsolete | 883 Pcs |
| BR34E02FVT-3E2 | Rohm Semiconductor | 2Kbit | 400 kHz | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-TSSOP-B | Active | 976 Pcs |
Engineering Selection Recommendations
Recommended Primary Substitutes (Active Status, Full Compatibility):
The 24AA02-I/MS and 24AA025-I/MS from Microchip Technology are direct parametric equivalents with identical electrical specifications and 8-MSOP packaging. Both parts are active products suitable for new designs. The 24AA02-I/MS offers the highest inventory availability at 1620 units.
Recommended Secondary Substitutes (Active Status, Rohm Semiconductor):
The BR24G02FVM-3GTTR and BR24L02FVM-WTR are active Rohm Semiconductor alternatives meeting all core electrical parameters with 8-MSOP packaging. The BR24L02FVM-WTR is verified as programmable and offers the lowest minimum supply voltage at 1.8V. The BR24G02FVM-3GTTR provides extended supply voltage range down to 1.6V.
Conditional Substitutes (Not For New Designs or Obsolete Status):
The BR24G02FVJ-3GTE2, BR24T02FVJ-WE2, and BR24T02FVJ-WGE2 are available in inventory but carry "Not For New Designs" or "Obsolete" status. These parts meet electrical specifications but should not be selected for new product development. The BR24T02FVJ-WGE2 is obsolete and should be avoided.
Package Format Considerations:
Parts with 8-TSSOP packaging (BR24G02FVJ-3AGTE2, BR24G02FVJ-3GTE2, BR24T02FVJ-WE2, BR24T02FVJ-WGE2, BR34E02FVT-3E2) differ from the primary 8-MSOP format. These are suitable only when the design accommodates alternative surface mount package dimensions.
Voltage Range Limitations:
The BR24A02FVM-WMTR has a minimum supply voltage of 2.5V, which is higher than the primary part's 1.7V minimum. This part is suitable only for applications with supply voltages of 2.5V or higher.
Automotive Grade Option:
The BR24A02FVM-WMTR carries AEC-Q100 automotive qualification and operates to 105°C, making it suitable for automotive applications requiring extended temperature range.
Frequently Asked Questions (FAQ)
Q: Can the 24AA02-I/MS directly replace the 24AA024H-I/MS?
A: Yes. The 24AA02-I/MS is a parametric equivalent with identical memory size (2Kbit), I2C interface (400 kHz), supply voltage range (1.7V ~ 5.5V), operating temperature (-40°C ~ 85°C), and 8-MSOP packaging. Both parts are active products from Microchip Technology.
Q: What is the difference between 8-MSOP and 8-TSSOP packaging?
A: Both are 8-pin surface mount packages but differ in physical dimensions. The 8-MSOP is 0.118" (3.00mm) wide, while 8-TSSOP is 0.118" (3.00mm) wide for standard variants. The BR34E02FVT-3E2 uses 8-TSSOP-B at 0.173" (4.40mm) width. Package selection depends on PCB layout and design constraints. Verify footprint compatibility before substitution.
Q: Can I use BR24G02FVJ-3AGTE2 as a substitute?
A: The BR24G02FVJ-3AGTE2 meets core electrical parameters but operates at 1 MHz clock frequency instead of 400 kHz. It uses 8-TSSOP packaging instead of 8-MSOP. This part is suitable only if the design accommodates higher clock frequency and alternative package dimensions. Verify PCB layout compatibility.
Q: Why is BR24A02FVM-WMTR listed as a substitute if its minimum voltage is 2.5V?
A: The BR24A02FVM-WMTR is a manufacturer-recommended alternative suitable for applications with supply voltages of 2.5V or higher. It is not a direct substitute for designs requiring operation below 2.5V. Verify your application's minimum supply voltage before selection.
Q: Are parts marked "Not For New Designs" still usable?
A: Parts with "Not For New Designs" status (BR24G02FVJ-3GTE2, BR24T02FVJ-WE2) are available in inventory and functionally compatible but should not be selected for new product development. These parts are suitable only for legacy system maintenance or repair applications.
Q: Should I use BR24T02FVJ-WGE2?
A: No. The BR24T02FVJ-WGE2 is marked as obsolete and should be avoided. Select active alternatives such as BR24G02FVM-3GTTR or BR24L02FVM-WTR instead.
Q: What does "DiGi-Electronics Programmable: Verified" mean?
A: This designation indicates that the part has been verified as programmable through DiGi-Electronics' testing procedures. Parts without this verification have not undergone this specific validation but remain functionally compatible based on manufacturer specifications.
Q: Can I substitute based on clock frequency alone?
A: No. Clock frequency is one of multiple critical parameters. All substitute parts must maintain 2Kbit memory size, 256 x 8 organization, I2C interface, compatible supply voltage range, and appropriate operating temperature. Verify all parameters before substitution.
Q: What is the significance of RoHS3 compliance?
A: All listed parts are RoHS3 compliant, indicating they meet Restriction of Hazardous Substances regulations. This compliance is consistent across all alternatives and does not differentiate substitution eligibility.
Q: How do I choose between Microchip and Rohm alternatives?
A: Microchip alternatives (24AA02-I/MS, 24AA025-I/MS) are direct parametric equivalents with identical specifications. Rohm alternatives offer variations in supply voltage range, temperature grade, or packaging. Select based on your specific application requirements: use Microchip for direct replacement, use Rohm for automotive applications (BR24A02FVM-WMTR) or extended voltage range (BR24G02FVM-3GTTR).
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