S-24CS02ADP-G EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The S-24CS02ADP-G is a 2Kbit EEPROM memory IC manufactured by ABLIC Inc., featuring I2C interface operation at 400 kHz with 8-DIP through-hole packaging. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. The part operates across a wide supply voltage range of 1.8V to 5.5V and maintains functionality across industrial temperature ranges from -40°C to 85°C.

Key Parameters

Parameter	S-24CS02ADP-G
Memory Type	Non-Volatile EEPROM
Memory Size	2Kbit
Memory Organization	256 x 8
Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	10 ms
Supply Voltage Range	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the S-24CS02ADP-G is determined by the following critical parameters:

Primary Substitution Criteria:

Memory capacity: 2Kbit (256 x 8 organization)
Interface protocol: I2C
Package format: 8-DIP through-hole
Supply voltage compatibility: Minimum 1.8V support required
Operating temperature range: Minimum -40°C to 85°C support required

Secondary Compatibility Factors:

Clock frequency: 400 kHz baseline (higher frequencies acceptable)
Access time: 900 ns baseline (faster access acceptable)
Write cycle time: 10 ms baseline (faster cycles acceptable)
RoHS3 compliance status

Substitute parts meeting all primary criteria are electrically and mechanically compatible. Parts with enhanced specifications (higher clock frequency, faster access time, wider temperature range) provide direct substitution with performance advantages.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Write Cycle Time	Supply Voltage	Operating Temperature	Package	Product Status
S-24CS02ADP-G	ABLIC Inc.	2Kbit	400 kHz	900 ns	10 ms	1.8V ~ 5.5V	-40°C ~ 85°C	8-DIP	Obsolete
24AA02-I/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-DIP	Active
24AA024-I/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-DIP	Active
24AA024H-I/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-DIP	Active
24AA025-I/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-DIP	Active
24AA02H-I/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-DIP	Active
24LC02B/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	2.5V ~ 5.5V	0°C ~ 70°C	8-DIP	Active
34AA02-E/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 125°C	8-DIP	Active
34AA02-I/P	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-DIP	Active
34LC02-E/P	Microchip Technology	2Kbit	1 MHz	400 ns	5 ms	2.2V ~ 5.5V	-40°C ~ 125°C	8-DIP	Active
34LC02-I/P	Microchip Technology	2Kbit	1 MHz	400 ns	5 ms	2.2V ~ 5.5V	-40°C ~ 85°C	8-DIP	Active

Engineering Selection Recommendations

Tier 1 - Direct Substitutes (Recommended): 24AA02-I/P, 24AA024-I/P, 24AA024H-I/P, 24AA025-I/P, and 24AA02H-I/P are active Microchip Technology products meeting all primary substitution criteria. These parts maintain identical memory capacity, I2C interface, 400 kHz clock frequency, 900 ns access time, and 8-DIP packaging. All operate within the required -40°C to 85°C temperature range and support the 1.7V to 5.5V supply voltage specification. Write cycle time is improved to 5 ms. All are RoHS3 compliant.

Tier 2 - Extended Temperature Range: 34AA02-E/P and 34AA02-I/P provide identical electrical specifications to Tier 1 substitutes with extended upper operating temperature to 125°C. These are suitable for applications requiring enhanced thermal performance.

Tier 3 - Enhanced Performance: 34LC02-E/P and 34LC02-I/P offer 1 MHz clock frequency and 400 ns access time, providing performance enhancement over the original 400 kHz specification. Operating temperature extends to 125°C (34LC02-E/P). Minimum supply voltage is 2.2V. These parts are suitable for designs requiring faster I2C communication.

Tier 4 - Limited Substitution: 24LC02B/P operates at reduced temperature range (0°C to 70°C) and higher minimum supply voltage (2.5V). This part is suitable only for applications within these narrower operating parameters.

Frequently Asked Questions (FAQ)

Q: Can I use 34LC02-E/P as a direct replacement for S-24CS02ADP-G? A: Yes. The 34LC02-E/P meets all primary substitution criteria: 2Kbit capacity, I2C interface, 8-DIP package, and required temperature range. The enhanced 1 MHz clock frequency and 400 ns access time provide performance improvement without compatibility issues.

Q: What is the difference between 24AA02-I/P and 34AA02-I/P? A: Both parts are electrically identical in terms of memory capacity, interface, clock frequency, and package. The primary difference is the device prefix: 24AA02 indicates standard industrial temperature range (-40°C to 85°C), while 34AA02 indicates extended temperature capability. For the -40°C to 85°C requirement, both are equivalent.

Q: Is 24LC02B/P compatible with my design? A: 24LC02B/P is compatible only if your application operates within 0°C to 70°C and requires minimum supply voltage of 2.5V or higher. The original S-24CS02ADP-G supports 1.8V minimum and -40°C minimum, which 24LC02B/P does not meet.

Q: Why does the write cycle time differ between the original part and substitutes? A: The S-24CS02ADP-G specifies 10 ms write cycle time, while Microchip substitutes specify 5 ms. Faster write cycles are backward compatible and do not affect system functionality. Applications designed for 10 ms cycles operate correctly with 5 ms cycle time parts.

Q: Are all substitute parts RoHS3 compliant? A: All listed substitute parts are RoHS3 compliant, matching the original S-24CS02ADP-G compliance status.

Q: What is the significance of the part number suffix (e.g., -I/P, -E/P)? A: The suffix indicates temperature grade and packaging format. -I/P denotes industrial temperature range (-40°C to 85°C) in tube packaging. -E/P denotes extended temperature range (-40°C to 125°C) in tube packaging. Both are through-hole compatible with 8-DIP format.

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