24LC1025-I/P EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC1025-I/P is a 1Mbit EEPROM memory integrated circuit manufactured by Microchip Technology, featuring I2C serial interface operation at 400 kHz with 900 ns access time. This non-volatile memory device is housed in an 8-PDIP through-hole package and operates across a 2.5V to 5.5V supply voltage range with -40°C to 85°C temperature specifications. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter specifications for this EEPROM category.

Substiute Parts

24LC1025-I/P

Microchip TechnologyIn Stock: 265324LC1025-I/P Datasheet

Current PartRFQ

24AA1025-I/P

Microchip TechnologyIn Stock: 329824AA1025-I/P Datasheet

MFR RecommendedRFQ

24FC1025-I/P

Microchip TechnologyIn Stock: 130924FC1025-I/P Datasheet

MFR RecommendedRFQ

24FC1026-I/P

Microchip TechnologyIn Stock: 214224FC1026-I/P Datasheet

MFR RecommendedRFQ

24LC1026-I/P

Microchip TechnologyIn Stock: 302924LC1026-I/P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC1025-I/P is determined by strict parameter matching across the following critical specifications:

Mandatory Matching Parameters:

• Memory Size: 1Mbit
• Memory Organization: 128K x 8
• Memory Interface: I2C
• Package Type: 8-DIP (0.300", 7.62mm)
• Operating Temperature Range: -40°C ~ 85°C
• Write Cycle Time: 5ms

Allowable Parameter Variations:

• Clock Frequency: Equal or higher frequency operation is acceptable
• Access Time: Equal or faster access time is acceptable
• Voltage Supply Range: Substitute must support the minimum 2.5V requirement; higher upper limits are acceptable
• RoHS and REACH Compliance: All substitutes maintain equivalent compliance status

Substitutes are categorized as MFR Recommended (manufacturer-endorsed alternatives) or Parametric Equivalents (parts meeting all electrical and mechanical criteria).

Parameter Comparison

Engineering Selection Recommendations

24AA1025-I/P (MFR Recommended) Direct functional equivalent with identical clock frequency and access time specifications. Extends minimum voltage supply capability to 1.7V, providing enhanced low-voltage operation margin. Active product status with ROHS3 compliance. Suitable for applications requiring standard 400 kHz I2C operation with no performance trade-offs relative to the primary part.

24FC1025-I/P (MFR Recommended) Enhanced performance variant operating at 1 MHz clock frequency with 400 ns access time, representing 2.5x faster I2C communication and 2.25x faster memory access compared to the primary part. Minimum voltage supply extends to 1.8V. Appropriate for time-critical applications requiring higher I2C bus speeds while maintaining identical memory capacity and organization. Active product status with ROHS3 compliance.

24FC1026-I/P (MFR Recommended) Functionally equivalent to 24FC1025-I/P with identical electrical performance specifications: 1 MHz clock frequency, 400 ns access time, and 1.8V minimum supply voltage. Differentiated by base product number designation. Active product status with ROHS3 compliance. Selection between 24FC1025-I/P and 24FC1026-I/P depends on design documentation and procurement requirements specific to the base product number.

24LC1026-I/P (Parametric Equivalent) Parametric equivalent maintaining identical electrical performance to the primary 24LC1025-I/P: 400 kHz clock frequency, 900 ns access time, and 2.5V minimum supply voltage. Differentiated by base product number designation. Active product status with ROHS3 compliance. Substitution validity depends on design documentation acceptance of the base product number variant.

Frequently Asked Questions (FAQ)

Q: Can 24AA1025-I/P replace 24LC1025-I/P in existing designs? A: Yes. The 24AA1025-I/P maintains identical memory capacity, organization, I2C interface, clock frequency, access time, write cycle time, operating temperature range, and 8-DIP package specifications. The extended minimum voltage supply (1.7V vs. 2.5V) provides additional operational margin without affecting compatibility.

Q: What is the primary advantage of 24FC1025-I/P over 24LC1025-I/P? A: The 24FC1025-I/P operates at 1 MHz I2C clock frequency with 400 ns access time, compared to 400 kHz and 900 ns respectively for the 24LC1025-I/P. This provides faster serial communication and memory access performance. All other electrical and mechanical parameters remain compatible.

Q: Are 24FC1025-I/P and 24FC1026-I/P interchangeable? A: Both parts share identical electrical specifications: 1 MHz clock frequency, 400 ns access time, 1.8V to 5.5V supply range, and 8-DIP packaging. Interchangeability depends on design documentation requirements regarding base product number designation.

Q: Can higher-frequency variants (24FC series) be used in applications designed for 400 kHz operation? A: Yes. The 24FC series operates at higher clock frequencies (1 MHz) and faster access times (400 ns), which are backward-compatible with 400 kHz I2C bus designs. The I2C interface automatically operates at the lower bus speed when connected to 400 kHz controllers.

Q: What is the difference between 24LC1025-I/P and 24LC1026-I/P? A: Both parts maintain identical electrical performance: 1Mbit capacity, 128K x 8 organization, 400 kHz I2C operation, 900 ns access time, 2.5V to 5.5V supply range, and 8-DIP packaging. The distinction is the base product number designation. Substitution validity depends on design documentation acceptance.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the primary part's environmental and regulatory certifications.