24FC02-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24FC02-E/ST 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 450 ns access time, housed in an 8-TSSOP surface mount package. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent memory capacity, interface protocol, package form factor, and operating voltage ranges align with application requirements.

Substiute Parts

24FC02-E/ST

Microchip TechnologyIn Stock: 110924FC02-E/ST Datasheet

Current PartRFQ

R1EX24002ATAS0I#S0

Renesas Electronics CorporationIn Stock: 3929R1EX24002ATAS0I#S0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24FC02-E/ST are qualified based on the following critical parameters:

• Memory capacity of 2Kbit with 256 x 8 organization
• I2C serial interface protocol
• 8-TSSOP surface mount package with identical 0.173" width and 4.40mm dimensions
• Supply voltage range compatibility (minimum 1.7V to 5.5V overlap required)
• Non-volatile EEPROM technology
• RoHS3 compliance and EAR99 export classification
• Active product status

The R1EX24002ATAS0I#S0 from Renesas Electronics Corporation meets these core substitution criteria. Variations in clock frequency (400 kHz vs. 1 MHz), access time (900 ns vs. 450 ns), write cycle time (5ms equivalent), and maximum operating temperature (-40°C ~ 85°C vs. -40°C ~ 125°C) represent performance differences that must be evaluated against specific application timing and thermal requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 24FC02-E/ST and R1EX24002ATAS0I#S0 are active production components with RoHS3 compliance and identical EAR99 export classification. Selection between these parts depends on application-specific requirements:

The 24FC02-E/ST operates at 1 MHz with 450 ns access time and supports the full -40°C ~ 125°C temperature range, suitable for applications requiring higher clock frequency and extended high-temperature operation.

The R1EX24002ATAS0I#S0 operates at 400 kHz with 900 ns access time and supports -40°C ~ 85°C temperature range. This part is appropriate for applications where lower clock frequency is acceptable and maximum operating temperature does not exceed 85°C. The minimum supply voltage is 1.8V versus 1.7V for the Microchip part.

Both parts share identical memory capacity, organization, I2C interface, write cycle time, and 8-TSSOP package dimensions. Packaging format differs: the 24FC02-E/ST is supplied in Tube format while the R1EX24002ATAS0I#S0 is supplied in Tape & Reel format.

Frequently Asked Questions (FAQ)

Q: Can the R1EX24002ATAS0I#S0 directly replace the 24FC02-E/ST in all applications?

A: Direct replacement is possible only when application timing requirements accommodate 400 kHz clock frequency and 900 ns access time, and when maximum operating temperature does not exceed 85°C. The minimum supply voltage of 1.8V must also be compatible with the system design.

Q: What are the key differences between these two parts?

A: The primary differences are clock frequency (1 MHz vs. 400 kHz), access time (450 ns vs. 900 ns), maximum operating temperature (-40°C ~ 125°C vs. -40°C ~ 85°C), minimum supply voltage (1.7V vs. 1.8V), and packaging format (Tube vs. Tape & Reel).

Q: Are both parts RoHS3 compliant?

A: Yes, both the 24FC02-E/ST and R1EX24002ATAS0I#S0 are RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: Do these parts have identical pin configurations?

A: Both parts use the 8-TSSOP package with identical 0.173" width and 4.40mm dimensions, ensuring mechanical and electrical compatibility at the package level.

Q: What is the significance of the different packaging formats?

A: The 24FC02-E/ST is supplied in Tube format for lower-volume applications, while the R1EX24002ATAS0I#S0 is supplied in Tape & Reel format, typically used for higher-volume automated assembly processes.