Equivalent & Substitute Parts for 34VL02/SN

Part Overview

The 34VL02/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 maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary part experiences supply constraints, packaging format requirements differ for manufacturing processes, or enhanced performance specifications are required for specific application demands.

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
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across memory capacity, interface protocol, package configuration, and electrical specifications. The 34VL02/SN accepts substitutes meeting the following criteria:

Primary Substitution Criteria:

Memory Size: 2Kbit (256 x 8 organization)
Memory Interface: I2C protocol
Package Type: 8-SOIC form factor
Mounting Type: Surface Mount
RoHS Compliance: ROHS3 Compliant

Secondary Compatibility Parameters:

Clock Frequency: 400 kHz minimum
Access Time: 900 ns maximum
Write Cycle Time: 5ms
Voltage Supply: 1.5V ~ 3.6V minimum range coverage
Operating Temperature: -20°C ~ 85°C minimum range coverage

Substitute parts are categorized by packaging format (Tube, Tape & Reel, Cut Tape) and performance tier. Parts with identical electrical specifications but different packaging formats provide direct substitution capability. Parts with enhanced clock frequency (1 MHz) and improved access time (450 ns or 4.5 µs) represent performance-upgraded alternatives suitable for applications requiring faster I2C communication.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temperature	Package	Packaging Format	Inventory
34VL02/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC	Tube	759 Pcs
24VL024HT/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC	Tape & Reel	10990 Pcs
24VL024T/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC	Cut Tape	2088 Pcs
24VL024/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.5V ~ 3.6V	-20°C ~ 85°C	8-SOIC	Tube	1071 Pcs
AT24C02D-SSHM-T	Microchip Technology	2Kbit	1 MHz	450 ns	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	42300 Pcs
AT24C02D-SSHM-B	Microchip Technology	2Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC	Tube	20400 Pcs

Engineering Selection Recommendations

Direct Electrical Equivalents (400 kHz I2C Operation):

The 24VL024HT/SN, 24VL024T/SN, and 24VL024/SN provide complete electrical and functional equivalence to the 34VL02/SN. These parts maintain identical memory capacity, clock frequency, access time, voltage supply range, and operating temperature specifications. Selection among these three variants depends solely on packaging format requirements: Tape & Reel format for automated assembly processes, Cut Tape format for manual or semi-automated pick-and-place operations, or Tube format for manual component handling. All three variants maintain ROHS3 compliance and Active product status.

Performance-Enhanced Alternatives (1 MHz I2C Operation):

The AT24C02D-SSHM-T and AT24C02D-SSHM-B represent performance-upgraded substitutes with 1 MHz clock frequency capability and significantly improved access time specifications. These parts operate across an extended temperature range (-40°C to 85°C) and feature verified DiGi-Electronics programmability status. The AT24C02D-SSHM-T is supplied in Cut Tape & Digi-Reel format with 42,300 units in stock, while AT24C02D-SSHM-B is supplied in Tube format with 20,400 units in stock. Both maintain ROHS3 compliance and Active product status. These alternatives are suitable for applications requiring faster I2C communication speeds or extended operating temperature ranges, provided the application circuit supports 1 MHz I2C operation.

Supply Availability Considerations:

The 24VL024HT/SN offers the highest inventory availability at 10,990 units, making it the preferred choice when supply continuity is a primary concern. The AT24C02D-SSHM-T provides substantial inventory (42,300 units) with performance enhancement benefits.

Frequently Asked Questions (FAQ)

Q: Can I substitute 34VL02/SN with 24VL024HT/SN in my design?

A: Yes. The 24VL024HT/SN is a direct electrical equivalent with identical memory capacity, I2C clock frequency, access time, voltage supply range, and operating temperature specifications. The only difference is packaging format (Tape & Reel versus Tube). If your manufacturing process uses automated component placement equipment, the Tape & Reel format may be preferred.

Q: What is the difference between 24VL024T/SN and 24VL024HT/SN?

A: Both parts are electrically identical with 2Kbit capacity and 400 kHz I2C operation. The difference is packaging format: 24VL024T/SN is supplied in Cut Tape format (2,088 units available), while 24VL024HT/SN is supplied in Tape & Reel format (10,990 units available). Cut Tape format is typically used for manual or semi-automated assembly, while Tape & Reel format is optimized for high-speed automated pick-and-place equipment.

Q: Can I use AT24C02D-SSHM-T as a substitute for 34VL02/SN?

A: Yes, with performance enhancement. The AT24C02D-SSHM-T maintains the same 2Kbit memory capacity and 8-SOIC package, but operates at 1 MHz I2C clock frequency (versus 400 kHz) with 450 ns access time (versus 900 ns). It also supports an extended operating temperature range (-40°C to 85°C versus -20°C to 85°C). This substitute is suitable if your application circuit supports 1 MHz I2C operation and benefits from faster communication speeds.

Q: What is the minimum voltage supply requirement difference between 34VL02/SN and AT24C02D-SSHM-T?

A: The 34VL02/SN operates from 1.5V minimum, while AT24C02D-SSHM-T requires 1.7V minimum. If your application operates below 1.7V, the AT24C02D-SSHM-T is not suitable. In such cases, use 24VL024HT/SN, 24VL024T/SN, or 24VL024/SN, which maintain the 1.5V minimum supply voltage.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (24VL024HT/SN, 24VL024T/SN, 24VL024/SN, AT24C02D-SSHM-T, and AT24C02D-SSHM-B) maintain ROHS3 compliance status, matching the 34VL02/SN compliance requirement.

Q: Which substitute has the best inventory availability?

A: The AT24C02D-SSHM-T offers the highest inventory with 42,300 units in stock. If you require the same electrical specifications as the original part (400 kHz operation), the 24VL024HT/SN provides strong availability with 10,990 units in stock.

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