Equivalent & Substitute Parts for 24LC024/ST

Part Overview

The 24LC024/ST is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface with 400 kHz clock frequency and 900 ns access time in an 8-TSSOP surface mount package. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, extended lead times, or design flexibility within specified operational boundaries.

Key Parameters

Parameter	Value
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24LC024/ST are categorized based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Memory Size: 2Kbit (fixed requirement)
Memory Organization: 256 x 8 (fixed requirement)
Memory Interface: I2C (fixed requirement)
Package / Case: 8-TSSOP (fixed requirement)
Mounting Type: Surface Mount (fixed requirement)

Secondary Compatibility Parameters:

Clock Frequency: 400 kHz (baseline); higher frequencies (1 MHz) are acceptable as they provide enhanced performance
Access Time: 900 ns (baseline); faster access times are acceptable
Voltage Supply Range: 2.5V ~ 5.5V (baseline); wider ranges (1.7V ~ 5.5V) are acceptable
Operating Temperature: 0°C ~ 70°C (baseline); extended ranges (-40°C ~ 85°C) are acceptable
RoHS Status: ROHS3 Compliant (required)

Parts are grouped into three categories: MFR Recommended (direct manufacturer alternatives), Parametric Equivalents (matching all primary criteria with identical or superior secondary parameters), and Cross-Manufacturer Options (alternative manufacturers meeting all substitution criteria).

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temperature	Package	Product Status	Inventory (Pcs)
24LC024/ST	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	0°C ~ 70°C	8-TSSOP	Active	2300
24AA02-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	3200
24AA024-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	1342
24LC024-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	2947
24LC024H-I/ST	Microchip Technology	2Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	1582
24LC025-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	47800
24LC02B-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	7600
AT24CS02-XHM-T	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	15684
AT24HC02C-XHM-B	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	2062
24LC02B/ST	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	0°C ~ 70°C	8-TSSOP	Active	2024
BR24G02FVT-3AGE2	Rohm Semiconductor	2Kbit	1 MHz	Not Specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	2665

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical Specifications): 24LC024-I/ST and 24LC02B/ST are parametric equivalents meeting all primary and secondary criteria. Both maintain the 2.5V ~ 5.5V supply range and 400 kHz clock frequency. 24LC024-I/ST extends operating temperature to -40°C ~ 85°C, providing broader environmental coverage. 24LC02B/ST maintains the original 0°C ~ 70°C range. Both are Active status with ROHS3 compliance.

Enhanced Performance Substitutes (Superior Specifications): 24LC024H-I/ST, AT24CS02-XHM-T, and AT24HC02C-XHM-B offer 1 MHz clock frequency with faster access times (400 ns or 550 ns versus 900 ns baseline). These parts maintain 2Kbit capacity and 8-TSSOP packaging. AT24CS02-XHM-T and AT24HC02C-XHM-B support extended voltage range (1.7V ~ 5.5V) and temperature range (-40°C ~ 85°C). All are Active status with ROHS3 compliance.

Extended Environmental Range Substitutes: 24AA02-I/ST and 24AA024-I/ST provide wider voltage supply range (1.7V ~ 5.5V) and extended operating temperature (-40°C ~ 85°C) while maintaining 400 kHz clock frequency and 900 ns access time. Both are Active status with ROHS3 compliance.

Cross-Manufacturer Option: BR24G02FVT-3AGE2 from Rohm Semiconductor meets all primary substitution criteria with 1 MHz clock frequency and extended environmental range (1.6V ~ 5.5V, -40°C ~ 85°C). Active status with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can 24LC024H-I/ST replace 24LC024/ST in all applications? A: Yes, 24LC024H-I/ST is a direct substitute meeting all primary criteria (2Kbit, 256x8, I2C, 8-TSSOP). The 1 MHz clock frequency and 400 ns access time provide enhanced performance compared to the baseline 400 kHz and 900 ns specifications. Operating temperature extends to -40°C ~ 85°C, providing broader environmental coverage.

Q: What is the difference between 24AA02-I/ST and 24LC024/ST? A: Both are 2Kbit I2C EEPROM devices in 8-TSSOP packaging with identical clock frequency (400 kHz) and access time (900 ns). The 24AA02-I/ST supports lower voltage operation (1.7V minimum versus 2.5V) and extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). Electrical functionality is equivalent within the 2.5V ~ 5.5V overlap range.

Q: Is the AT24CS02-XHM-T compatible with 24LC024/ST designs? A: Yes, AT24CS02-XHM-T is compatible. It maintains 2Kbit capacity, 256x8 organization, I2C interface, and 8-TSSOP packaging. The 1 MHz clock frequency and 550 ns access time exceed baseline performance. Voltage range (1.7V ~ 5.5V) and operating temperature (-40°C ~ 85°C) provide extended environmental coverage.

Q: Can I use BR24G02FVT-3AGE2 from Rohm Semiconductor as a substitute? A: Yes, BR24G02FVT-3AGE2 meets all primary substitution criteria with 2Kbit capacity, I2C interface, and 8-TSSOP packaging. The 1 MHz clock frequency provides enhanced performance. Voltage range (1.6V ~ 5.5V) and operating temperature (-40°C ~ 85°C) support extended environmental applications. Cross-manufacturer substitution requires design verification for any proprietary interface considerations.

Q: What packaging options are available for substitutes? A: All substitute parts listed maintain the 8-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring mechanical and electrical compatibility with 24LC024/ST PCB layouts. Packaging variants (Tube, Cut Tape, Bulk, Tape & Reel) affect supply chain logistics but do not alter component functionality.

Q: Are all substitutes ROHS3 compliant? A: Yes, all substitute parts listed are ROHS3 compliant, matching the compliance status of 24LC024/ST. All parts maintain unlimited moisture sensitivity level (MSL 1).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message