Equivalent & Substitute Parts for 24VL024H/ST

Part Overview

The 24VL024H/ST is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface with 400 kHz clock frequency and 900 ns access time. This non-volatile memory device is packaged in 8-TSSOP surface mount configuration and operates across 1.5V to 3.6V supply voltage range with temperature range of -20°C to 85°C. The part is currently in active product status and ROHS3 compliant. Substitute parts are necessary when the original part becomes unavailable, when alternative packaging formats are required, or when enhanced performance specifications (higher clock frequency, wider operating temperature range, or extended voltage tolerance) are needed for system requirements.

Key Parameters

Parameter	24VL024H/ST
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-TSSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24VL024H/ST is determined by the following critical parameters: memory size (2Kbit), memory organization (256 x 8), I2C interface protocol, package type compatibility, and electrical operating ranges. Parts are grouped into three categories based on substitution criteria:

Category 1: Direct Parametric Equivalents — Parts with identical electrical specifications and package type. These parts maintain 400 kHz clock frequency, 900 ns access time, and 1.5V to 3.6V supply voltage range. Package must be 8-TSSOP.

Category 2: MFR Recommended Substitutes with Enhanced Performance — Parts with superior specifications including higher clock frequency (1 MHz), faster access time (4.5 µs), or extended operating temperature range (-40°C to 85°C). These parts maintain 2Kbit capacity, 256 x 8 organization, and I2C interface but may have different voltage supply ranges (1.7V to 3.6V or 1.6V to 5.5V).

Category 3: Alternative Package Formats — Parts with identical electrical specifications but different surface mount packages (8-MSOP, 8-SSOP-B, 8-TSSOP-B, 8-TSSOP-BJ). These maintain core functionality while offering alternative form factors.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package Type	Product Status
24VL024H/ST	Microchip	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-TSSOP	Active
AT24C02D-XHM-B	Microchip	2Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	-40°C ~ 85°C	8-TSSOP	Active
AT24C02D-XHM-T	Microchip	2Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	-40°C ~ 85°C	8-TSSOP	Active
24VL024/ST	Microchip	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-TSSOP	Active
BR24G02FV-3GTE2	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-LSSOP	Not For New Designs
BR24G02FVJ-3AGTE2	Rohm	2Kbit	1 MHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP-BJ	Active
BR24G02FVJ-3GTE2	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP-BJ	Not For New Designs
BR24G02FVM-3GTTR	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
BR24G02FVT-3AGE2	Rohm	2Kbit	1 MHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP-B	Active
BR24G02FVT-3GE2	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP-B	Active
BR24L02FVJ-WE2	Rohm	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP-BJ	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement (Same Specifications): The 24VL024/ST serves as a parametric equivalent with identical electrical characteristics and package type. Both parts maintain 400 kHz clock frequency, 900 ns access time, and 1.5V to 3.6V supply voltage. Both are ROHS3 compliant and in active product status.

For Enhanced Performance Requirements: The AT24C02D-XHM-B and AT24C02D-XHM-T offer superior clock frequency (1 MHz) and extended operating temperature range (-40°C to 85°C). These Microchip parts are in active product status and ROHS3 compliant. The primary trade-off is minimum supply voltage of 1.7V versus 1.5V on the original part.

For Extended Voltage Tolerance: Rohm Semiconductor BR24G02 series parts (BR24G02FVT-3AGE2, BR24G02FVT-3GE2, BR24G02FVM-3GTTR) provide wider supply voltage range (1.6V to 5.5V) and extended operating temperature (-40°C to 85°C). BR24G02FVT-3AGE2 and BR24G02FVJ-3AGTE2 offer 1 MHz clock frequency. Parts marked "Not For New Designs" should be avoided for new system implementations.

For Alternative Packaging: BR24G02FVM-3GTTR provides 8-MSOP package format while maintaining 400 kHz operation and active product status. BR24G02FVT-3AGE2 and BR24G02FVT-3GE2 offer 8-TSSOP-B package variant with active status.

Compliance Considerations: All listed substitutes maintain ROHS3 compliance and REACH unaffected status. MSL rating remains 1 (Unlimited) across all parts.

Frequently Asked Questions (FAQ)

Q: Can I use AT24C02D-XHM-B as a direct replacement for 24VL024H/ST?

A: Yes, with design considerations. Both parts are 2Kbit I2C EEPROM in 8-TSSOP package with identical memory organization (256 x 8) and write cycle time (5ms). The AT24C02D-XHM-B offers higher clock frequency (1 MHz vs 400 kHz) and faster access time (4.5 µs vs 900 ns), making it functionally compatible. The minimum supply voltage is 1.7V instead of 1.5V, which may affect ultra-low-power applications. Both are ROHS3 compliant and in active product status.

Q: What is the difference between 8-TSSOP and 8-TSSOP-B packages?

A: Both are 8-pin thin shrink small outline packages with 0.173" width and 4.40mm body width. The 8-TSSOP-B designation indicates a variant package format used by Rohm Semiconductor. Physical dimensions and pin configurations are compatible for PCB layout purposes, though component footprints should be verified against specific manufacturer datasheets.

Q: Why are some BR24G02 parts marked "Not For New Designs"?

A: Parts with "Not For New Designs" status indicate the manufacturer is phasing out these specific part numbers. While they remain functionally equivalent and available in inventory, Rohm Semiconductor recommends using active status alternatives for new system development. BR24G02FVT-3AGE2, BR24G02FVJ-3AGTE2, and BR24G02FVM-3GTTR are active status alternatives from the same BR24G02 series.

Q: Can I substitute a 1 MHz clock frequency part for the original 400 kHz part?

A: Yes. The 1 MHz parts (AT24C02D-XHM-B, AT24C02D-XHM-T, BR24G02FVJ-3AGTE2, BR24G02FVT-3AGE2) are backward compatible with 400 kHz I2C bus specifications. The higher clock frequency capability does not prevent operation on slower I2C buses. System firmware and I2C master configuration determine actual bus speed, not the slave device maximum frequency.

Q: What is the significance of the extended voltage range (1.6V to 5.5V) in Rohm parts?

A: Rohm BR24G02 series parts tolerate wider supply voltage range compared to the original 24VL024H/ST (1.5V to 3.6V). This allows operation in systems with less regulated power supplies or mixed-voltage environments. However, the original part's narrower range is sufficient for standard 3.3V and lower voltage applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the original 24VL024H/ST. All parts are also REACH unaffected and carry EAR99 ECCN classification with identical HTSUS code 8542.32.0051.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message