Equivalent & Substitute Parts for 24VL024H/SN

Part Overview

The 24VL024H/SN is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. Packaged in 8-SOIC surface mount configuration, this non-volatile memory device operates across 1.5V to 3.6V supply range and -20°C to 85°C temperature range. The part is ROHS3 compliant and currently in active production status with 950 units in stock. Equivalent and substitute parts are identified to address inventory availability, packaging preferences, extended temperature ranges, or higher clock frequency requirements while maintaining core memory functionality.

Key Parameters

Parameter	24VL024H/SN
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 (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 24VL024H/SN are classified into three categories based on substitution compatibility:

Category 1: Direct Parametric Equivalents (Identical Electrical & Mechanical Specifications) Parts meeting all core parameters: 2Kbit memory size, 256 x 8 organization, I2C interface, 400 kHz clock frequency, 900 ns access time, 5ms write cycle, 1.5V–3.6V supply, -20°C to 85°C operating range, and 8-SOIC package. These parts differ only in packaging format (Tube vs. Cut Tape) or minor manufacturer variations.

Category 2: MFR Recommended Substitutes (Enhanced Specifications) Parts with upgraded electrical performance: higher clock frequency (1 MHz), faster access time (4.5 µs to 450 ns), extended temperature range (-40°C to 85°C), or wider supply voltage range (1.7V–3.6V or 1.8V–5.5V). These parts maintain 2Kbit memory, 256 x 8 organization, I2C interface, and 8-SOIC or compatible package footprint, offering superior performance margins.

Category 3: Cross-Manufacturer Alternatives Parts from Rohm Semiconductor and onsemi with identical memory specifications and I2C interface but different package designations (8-SOP, 8-SOP-J) or enhanced voltage/temperature ratings. These require mechanical compatibility verification due to package width variations.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package	Packaging Format	Status
24VL024H/SN	Microchip	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC	Tube	Active
24VL024T/SN	Microchip	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC	Cut Tape (CT)	Active
24VL024/SN	Microchip	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC	Tube	Active
AT24C02D-SSHM-B	Microchip	2Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC	Tube	Active
AT24C02D-SSHM-T	Microchip	2Kbit	1 MHz	450 ns	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC	Cut Tape (CT)	Active
BR24G02FJ-3GTE2	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOP-J	Tape & Reel (TR)	Active
BR24G02F-3AGTE2	Rohm	2Kbit	1 MHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOP	Tape & Reel (TR)	Active
BR24L02F-WE2	Rohm	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOP	Tape & Reel (TR)	Active
BR24L02FJ-WE2	Rohm	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOP-J	Tape & Reel (TR)	Active
BR24T02F-WGE2	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOP	Tape & Reel (TR)	Active
CAT24C03WI-GT3	onsemi	2Kbit	400 kHz	900 ns	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape (CT)	Obsolete

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select 24VL024T/SN or 24VL024/SN when packaging format change is acceptable. Both maintain identical electrical performance and 8-SOIC footprint. 24VL024T/SN offers higher inventory availability (2088 units) in Cut Tape format suitable for automated assembly. 24VL024/SN provides Tube packaging with 1071 units in stock.

For Extended Temperature Range Applications: AT24C02D-SSHM-T or AT24C02D-SSHM-B support -40°C to 85°C operating range versus the original -20°C to 85°C. Both are Microchip products with verified DiGi-Electronics programmability. AT24C02D-SSHM-T (42300 units) offers superior availability and 450 ns access time. AT24C02D-SSHM-B (20400 units) provides 4.5 µs access time in Tube packaging.

For Higher Clock Frequency Requirements: AT24C02D-SSHM-T operates at 1 MHz versus 400 kHz, providing faster I2C communication with 450 ns access time. Maintains 8-SOIC package compatibility and ROHS3 compliance.

For Wide Supply Voltage Range: Rohm Semiconductor BR24 series parts (BR24G02FJ-3GTE2, BR24L02F-WE2, BR24L02FJ-WE2, BR24T02F-WGE2) support 1.6V–5.5V or 1.8V–5.5V supply range, exceeding the original 1.5V–3.6V specification. All maintain 2Kbit memory, I2C interface, 400 kHz operation, and -40°C to 85°C temperature range. Package footprints differ (8-SOP vs. 8-SOP-J); verify mechanical compatibility with PCB layout.

For Obsolete Part Replacement: CAT24C03WI-GT3 (onsemi) is marked obsolete. Do not select for new designs. Use active alternatives from Microchip or Rohm instead.

Compliance Considerations: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity levels range from MSL 1 (unlimited) to MSL 3 (168 hours); verify storage and handling requirements for your manufacturing process.

Frequently Asked Questions (FAQ)

Q: Can I substitute 24VL024H/SN with 24VL024T/SN? A: Yes. Both parts are electrically and mechanically identical with 2Kbit memory, 256 x 8 organization, I2C 400 kHz interface, 900 ns access time, and 8-SOIC package. The only difference is packaging format: 24VL024H/SN ships in Tube while 24VL024T/SN uses Cut Tape. Verify your assembly equipment compatibility with the packaging format.

Q: What is the difference between AT24C02D-SSHM-B and AT24C02D-SSHM-T? A: Both are Microchip AT24C02D variants with identical electrical specifications: 1 MHz clock frequency, 2Kbit memory, I2C interface, -40°C to 85°C operating range, and 8-SOIC package. The difference is packaging format: -B uses Tube, -T uses Cut Tape. AT24C02D-SSHM-T has higher inventory (42300 units) and faster access time (450 ns vs. 4.5 µs).

Q: Are Rohm BR24 series parts pin-compatible with Microchip 24VL024H/SN? A: Rohm BR24 parts maintain I2C interface and 8-pin SOIC package configuration but use different package designations (8-SOP vs. 8-SOP-J). Physical package width varies: Microchip 8-SOIC is 0.154" (3.90mm) while Rohm 8-SOP is 0.173" (4.40mm). Verify PCB footprint compatibility before substitution. Pin assignment and I2C protocol are compatible.

Q: Can I use AT24C02D-SSHM-T in place of 24VL024H/SN for a -20°C to 85°C application? A: Yes. AT24C02D-SSHM-T supports -40°C to 85°C, exceeding the original -20°C to 85°C requirement. It provides superior performance with 1 MHz clock frequency and 450 ns access time. Supply voltage range is 1.7V–3.6V (vs. original 1.5V–3.6V); verify your circuit operates above 1.7V minimum.

Q: Why is CAT24C03WI-GT3 marked obsolete? A: CAT24C03WI-GT3 is an onsemi product no longer in active production. For new designs or long-term supply assurance, select active alternatives from Microchip (24VL024 or AT24C02D series) or Rohm (BR24 series).

Q: What is the advantage of BR24L02F-WE2 over 24VL024H/SN? A: BR24L02F-WE2 offers wider supply voltage range (1.8V–5.5V vs. 1.5V–3.6V), extended temperature range (-40°C to 85°C vs. -20°C to 85°C), and higher inventory (39785 units). It maintains 2Kbit memory, 400 kHz I2C operation, and MSL 1 moisture sensitivity. Package width is 0.173" (4.40mm) vs. 0.154" (3.90mm); verify PCB layout compatibility.

Q: Does higher clock frequency (1 MHz) guarantee faster data transfer? A: Higher clock frequency enables faster I2C communication protocol timing but does not change memory access time or write cycle time. AT24C02D-SSHM-T at 1 MHz provides faster I2C bus operation suitable for systems requiring higher data throughput. For applications with strict timing constraints, verify both clock frequency and access time specifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All recommended substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the original 24VL024H/SN environmental certifications.

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