24VL024T/SN EEPROM Equivalent & Substitute Parts

Part Overview

The 24VL024T/SN is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, supplied in Cut Tape packaging. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time and supports a voltage supply range of 1.5V to 3.6V. The device is ROHS3 compliant and carries Active product status. Substitute parts are identified when equivalent memory capacity, interface protocol, package type, and electrical specifications align within acceptable operational parameters.

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	1.5V ~ 3.6V
Operating Temperature	-20°C ~ 85°C
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of the following parameters: memory capacity (2Kbit), memory organization (256 x 8), I2C interface protocol, package footprint compatibility (8-SOIC or equivalent pin-compatible variants), and electrical operating ranges. Parts are grouped into three categories based on substitution relationship type:

Direct Substitutes (Packaging Variant): Parts with identical electrical specifications and memory parameters but different packaging formats (Tube vs. Cut Tape).

Manufacturer Recommended Substitutes (Enhanced Performance): Parts with higher clock frequency (1 MHz vs. 400 kHz), faster access time, or extended temperature ranges, maintaining full backward compatibility with the 24VL024T/SN electrical interface.

Parametric Equivalents (Cross-Manufacturer): Parts from alternative manufacturers (Rohm Semiconductor, onsemi) with matching 2Kbit capacity, I2C interface, and 8-SOIC package footprint, accommodating broader voltage supply ranges and temperature specifications.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temperature	Package	Product Status
24VL024T/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC (0.154")	Active
24VL024/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC (0.154")	Active
24VL024HT/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC (0.154")	Active
AT24C02D-SSHM-B	Microchip Technology	2Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC (0.154")	Active
AT24C02D-SSHM-T	Microchip Technology	2Kbit	1 MHz	450 ns	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC (0.154")	Active
BR24G02FJ-3GTE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOIC (0.154")	Active
BR24G02F-3AGTE2	Rohm Semiconductor	2Kbit	1 MHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOIC (0.173")	Active
BR24L02F-WE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC (0.173")	Active
BR24L02FJ-WE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC (0.154")	Active
BR24T02F-WGE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOIC (0.173")	Active
CAT24C03WI-GT3	onsemi	2Kbit	400 kHz	900 ns	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC (0.154")	Obsolete

Engineering Selection Recommendations

Direct Substitution (No Design Changes Required): 24VL024/SN and 24VL024HT/SN are direct electrical equivalents to 24VL024T/SN, differing only in packaging format (Tube and Tape & Reel respectively). Both maintain identical memory specifications, clock frequency, access time, and voltage supply range. Selection depends on procurement and assembly requirements.

Enhanced Performance Substitutes (Backward Compatible): AT24C02D-SSHM-B and AT24C02D-SSHM-T offer higher clock frequency (1 MHz) and faster access time (4.5 µs and 450 ns respectively) while maintaining I2C protocol compatibility. These parts support extended operating temperature range (-40°C to 85°C) and are suitable for applications requiring improved performance margins. Both are ROHS3 compliant and carry Active product status.

Cross-Manufacturer Alternatives (Voltage Range Expansion): Rohm Semiconductor parts (BR24G02FJ-3GTE2, BR24L02FJ-WE2, BR24L02F-WE2, BR24T02F-WGE2) provide 2Kbit I2C EEPROM functionality with extended voltage supply ranges (1.6V to 5.5V or 1.8V to 5.5V), accommodating broader system power requirements. BR24L02FJ-WE2 and BR24L02F-WE2 carry DiGi-Electronics Programmable verification status. All maintain 400 kHz clock frequency and 8-SOIC package compatibility.

Obsolete Part Consideration: CAT24C03WI-GT3 (onsemi) matches electrical specifications and package footprint but carries Obsolete product status. Use only when existing inventory must be consumed or long-term supply is not required.

Frequently Asked Questions (FAQ)

Q: Can AT24C02D-SSHM-T replace 24VL024T/SN in existing designs? A: Yes. Both devices share identical 2Kbit capacity, I2C interface, and 8-SOIC package footprint. AT24C02D-SSHM-T operates at higher clock frequency (1 MHz vs. 400 kHz) and faster access time (450 ns vs. 900 ns), providing performance enhancement. The minimum voltage supply for AT24C02D-SSHM-T is 1.7V compared to 24VL024T/SN at 1.5V; verify system voltage compliance.

Q: What is the difference between 24VL024T/SN, 24VL024/SN, and 24VL024HT/SN? A: All three are Microchip Technology 2Kbit I2C EEPROMs with identical electrical specifications. The suffix indicates packaging format: T/SN (Cut Tape), /SN (Tube), and HT/SN (Tape & Reel). Electrical performance and memory organization are equivalent.

Q: Are Rohm Semiconductor BR24 series parts pin-compatible with Microchip 24VL024T/SN? A: BR24G02FJ-3GTE2, BR24L02FJ-WE2, and BR24L02F-WE2 maintain 8-SOIC package footprint compatibility. BR24G02F-3AGTE2 and BR24T02F-WGE2 use 8-SOIC package with 0.173" width (vs. 0.154" for 24VL024T/SN); verify PCB layout clearance. All support I2C protocol and 2Kbit memory capacity.

Q: Why does CAT24C03WI-GT3 show Obsolete status? A: CAT24C03WI-GT3 is marked Obsolete by onsemi. While electrical specifications match 24VL024T/SN, long-term availability is not guaranteed. Use only when existing stock must be utilized or as a temporary solution pending transition to Active status parts.

Q: What voltage supply range should I verify for cross-manufacturer substitution? A: 24VL024T/SN operates at 1.5V to 3.6V. Rohm Semiconductor parts extend this to 1.6V–5.5V or 1.8V–5.5V. Verify your system power supply falls within the substitute part's specified range. AT24C02D series requires minimum 1.7V.

Q: Does package width difference affect PCB assembly? A: 24VL024T/SN uses 8-SOIC with 0.154" width. BR24G02F-3AGTE2, BR24L02F-WE2, and BR24T02F-WGE2 use 0.173" width. Confirm PCB footprint and solder paste stencil accommodate the wider package before substitution.

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