Equivalent & Substitute Parts for 24C00/SN EEPROM Memory IC

Part Overview

The 24C00/SN is a 128-bit EEPROM memory integrated circuit manufactured by Microchip Technology, designed for I2C serial communication applications. This non-volatile memory device operates at 400 kHz clock frequency with a 4.6 µs access time and is packaged in an 8-SOIC surface mount configuration. The part is currently active in production status and ROHS3 compliant. Substitute parts are identified to address inventory availability, extended operating temperature ranges, or alternative voltage supply specifications while maintaining functional and mechanical compatibility.

Key Parameters

Parameter	Specification
Memory Size	128 bit
Memory Format	EEPROM
Memory Organization	16 x 8
Interface	I2C
Clock Frequency	400 kHz
Access Time	4.6 µs
Write Cycle Time	4 ms
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24C00/SN is determined by the following critical parameters:

Memory Capacity and Organization: All substitute parts must maintain 128-bit capacity with 16 x 8 organization to ensure software compatibility and functional equivalence.
Interface Protocol: I2C interface at 400 kHz clock frequency is mandatory for direct replacement without firmware modification.
Access and Cycle Timing: 4.6 µs access time and 4 ms write cycle time must be maintained or improved to ensure system timing requirements are met.
Package and Mounting: 8-SOIC surface mount package with identical 0.154" (3.90mm) width is required for PCB layout compatibility.
Electrical Specifications: Supply voltage range and operating temperature range determine application suitability but do not prevent substitution if the application requirements fall within the substitute part's specifications.
Compliance: ROHS3 compliance and REACH unaffected status are maintained across all substitute parts.

Parameter Comparison

Parameter	24C00/SN (Main)	24C00-I/SN	24LC00-I/SN	24LC00/SN
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Memory Size	128 bit	128 bit	128 bit	128 bit
Memory Format	EEPROM	EEPROM	EEPROM	EEPROM
Memory Organization	16 x 8	16 x 8	16 x 8	16 x 8
Interface	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz	400 kHz
Access Time	4.6 µs	4.6 µs	4.6 µs	4.6 µs
Write Cycle Time	4 ms	4 ms	4 ms	4 ms
Voltage Supply Range	4.5V ~ 5.5V	4.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full ROHS3 compliance with REACH unaffected designation, ensuring regulatory and environmental compliance equivalence to the main part.

24C00-I/SN: This part is functionally identical to 24C00/SN with identical voltage supply range (4.5V ~ 5.5V). The extended operating temperature range (-40°C ~ 85°C) provides broader environmental capability compared to the main part (0°C ~ 70°C). Selection is appropriate for applications requiring extended temperature operation within the 4.5V ~ 5.5V supply window.

24LC00-I/SN: This part extends both voltage supply range (2.5V ~ 5.5V) and operating temperature range (-40°C ~ 85°C) relative to the main part. The expanded voltage specification enables operation in low-power applications. Selection is appropriate for designs requiring either reduced supply voltage or extended temperature operation.

24LC00/SN: This part maintains the main part's operating temperature range (0°C ~ 70°C) while extending the voltage supply range to 2.5V ~ 5.5V. Selection is appropriate for applications requiring low-voltage operation within the standard temperature range.

Frequently Asked Questions (FAQ)

Q: Can 24C00-I/SN replace 24C00/SN in all applications?

A: Yes, 24C00-I/SN is a direct functional replacement. It maintains identical memory capacity, I2C interface, clock frequency, access time, and package configuration. The extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C) and identical voltage supply range (4.5V ~ 5.5V) make it suitable for all applications where 24C00/SN is specified, with the added benefit of broader temperature operation.

Q: What is the difference between 24LC00-I/SN and 24LC00/SN?

A: Both parts share identical memory specifications, I2C interface, and extended voltage supply range (2.5V ~ 5.5V). The primary difference is operating temperature: 24LC00-I/SN operates from -40°C ~ 85°C, while 24LC00/SN operates from 0°C ~ 70°C. Selection depends on the application's temperature requirements.

Q: Can I use 24LC00 series parts as replacements for 24C00/SN?

A: Yes, 24LC00-I/SN and 24LC00/SN are functionally equivalent to 24C00/SN in terms of memory capacity, organization, I2C interface, and timing specifications. The 24LC00 series offers extended voltage supply capability (2.5V ~ 5.5V) compared to 24C00/SN (4.5V ~ 5.5V). Substitution is valid provided the application's supply voltage and temperature requirements fall within the substitute part's specifications.

Q: Are all substitute parts in the same package?

A: Yes, all parts listed use the 8-SOIC surface mount package with identical dimensions (0.154", 3.90mm width). PCB layout and footprint compatibility is maintained across all parts without modification.

Q: Do substitute parts maintain compliance certifications?

A: Yes, all substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL rating 1 (Unlimited) identical to the main part 24C00/SN.

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