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Equivalent & Substitute Parts for 24LC08BH-I/P
Part Overview
The 24LC08BH-I/P is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. This through-hole 8-DIP package component is designed for non-volatile memory applications requiring serial communication protocols. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.
Substitute parts become necessary when addressing inventory constraints, extended lead times, or specific operational requirements such as expanded temperature ranges or modified supply voltage specifications. The following equivalent and substitute components maintain functional compatibility while accommodating alternative design parameters.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Memory Size | 8Kbit |
| Memory Organization | 256 x 8 x 4 |
| Memory Interface | I2C |
| Clock Frequency | 400 kHz |
| Access Time | 900 ns |
| Write Cycle Time | 5 ms |
| Package Type | 8-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the 24LC08BH-I/P is determined by strict alignment with the following critical parameters: 8Kbit memory capacity, 256 x 8 x 4 memory organization, I2C serial interface, 400 kHz clock frequency, 900 ns access time, 5 ms write cycle time, and 8-DIP through-hole package configuration.
The substitute parts listed maintain these core electrical and mechanical specifications. Variations in supply voltage range and operating temperature range are permitted substitution parameters, as these do not affect functional compatibility when the application operates within the overlapping voltage and temperature windows.
Parameter Comparison
| Parameter | 24LC08BH-I/P | 24AA08-I/P | 24LC08B-E/P | 24LC08B-I/P |
|---|---|---|---|---|
| Memory Size | 8Kbit | 8Kbit | 8Kbit | 8Kbit |
| Memory Organization | 256 x 8 x 4 | 256 x 8 x 4 | 256 x 8 x 4 | 256 x 8 x 4 |
| Memory Interface | I2C | I2C | I2C | I2C |
| Clock Frequency | 400 kHz | 400 kHz | 400 kHz | 400 kHz |
| Access Time | 900 ns | 900 ns | 900 ns | 900 ns |
| Write Cycle Time | 5 ms | 5 ms | 5 ms | 5 ms |
| Voltage - Supply | 2.5V ~ 5.5V | 1.7V ~ 5.5V | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 85°C |
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
All listed substitute parts maintain active product status with ROHS3 compliance and REACH unaffected classification, ensuring regulatory alignment with the original 24LC08BH-I/P component.
The 24AA08-I/P offers extended lower supply voltage operation (1.7V minimum) compared to the main part (2.5V minimum), providing flexibility for low-power applications while maintaining identical memory specifications and temperature range.
The 24LC08B-E/P extends the maximum operating temperature to 125°C, accommodating high-temperature industrial applications while preserving all other electrical parameters and supply voltage specifications of the original part.
The 24LC08B-I/P provides parametric equivalence with identical voltage supply range and operating temperature specifications to the main part, serving as a direct functional replacement with verified programmability status.
Frequently Asked Questions (FAQ)
Q: Can 24AA08-I/P replace 24LC08BH-I/P in all applications?
A: The 24AA08-I/P is functionally compatible when the application operates within the overlapping supply voltage range of 2.5V to 5.5V. The extended lower voltage capability (1.7V minimum) of the 24AA08-I/P does not restrict its use in designs requiring 2.5V minimum operation.
Q: What is the primary difference between 24LC08B-E/P and 24LC08BH-I/P?
A: The 24LC08B-E/P extends the maximum operating temperature specification to 125°C compared to 85°C for the 24LC08BH-I/P. All other electrical and mechanical parameters remain identical. Selection depends on application temperature requirements.
Q: Are all substitute parts pin-compatible with the original 24LC08BH-I/P?
A: Yes. All substitute parts use the identical 8-DIP (0.300", 7.62mm) through-hole package configuration with matching pin assignments for I2C interface operation.
Q: Do substitute parts maintain the same memory access characteristics?
A: Yes. All substitute parts maintain 8Kbit capacity, 256 x 8 x 4 organization, 400 kHz I2C clock frequency, 900 ns access time, and 5 ms write cycle time specifications.
Q: Which substitute part offers the broadest operational envelope?
A: The 24AA08-I/P provides the lowest supply voltage minimum (1.7V) while the 24LC08B-E/P provides the highest operating temperature maximum (125°C). Selection depends on specific application constraints.
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