Equivalent & Substitute Parts for 34VL02T/ST

Part Overview

The 34VL02T/ST is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface with 400 kHz clock frequency and 900 ns access time. Packaged in 8-TSSOP surface mount configuration, this non-volatile memory device operates across 1.5V to 3.6V supply voltage range and -20°C to 85°C temperature range. The device is ROHS3 compliant and carries unlimited moisture sensitivity level rating. Substitute parts are identified when equivalent memory capacity, interface protocol, and package specifications are required for design flexibility, inventory management, or supply chain optimization.

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-TSSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 34VL02T/ST are categorized based on substitution compatibility criteria:

MFR Recommended Substitutes maintain identical memory capacity (2Kbit), memory organization (256 x 8), interface protocol (I2C), package type (8-TSSOP), and mounting configuration. These parts demonstrate enhanced performance specifications including higher clock frequency (1 MHz versus 400 kHz) and faster access time (4.5 µs versus 900 ns), with extended operating temperature range (-40°C to 85°C). Supply voltage compatibility is maintained within overlapping range (1.7V ~ 3.6V). Packaging format differs (Tube or Cut Tape & Digi-Reel versus Tape & Reel), accommodating different procurement and assembly workflows.

Parametric Equivalent Substitute matches all critical electrical and mechanical specifications including memory size, organization, interface, clock frequency, access time, voltage supply range, operating temperature, and package type. Packaging format differs (Cut Tape versus Tape & Reel). This part maintains identical performance characteristics while offering alternative supply chain sourcing.

Parameter Comparison

Parameter	34VL02T/ST	AT24C02D-XHM-B	AT24C02D-XHM-T	24VL025T/ST
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Memory Size	2Kbit	2Kbit	2Kbit	2Kbit
Memory Organization	256 x 8	256 x 8	256 x 8	256 x 8
Memory Interface	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	1 MHz	1 MHz	400 kHz
Access Time	900 ns	4.5 µs	4.5 µs	900 ns
Write Cycle Time	5ms	5ms	5ms	5ms
Voltage Supply Range	1.5V ~ 3.6V	1.7V ~ 3.6V	1.7V ~ 3.6V	1.5V ~ 3.6V
Operating Temperature	-20°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-20°C ~ 85°C
Package Type	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status with ROHS3 compliance and unlimited moisture sensitivity level rating, ensuring regulatory alignment and long-term availability.

AT24C02D-XHM-B and AT24C02D-XHM-T offer enhanced performance specifications with 1 MHz clock frequency and 4.5 µs access time, suitable for applications requiring faster I2C communication. Extended operating temperature range (-40°C to 85°C) accommodates wider environmental conditions. Minimum supply voltage requirement increases to 1.7V, requiring verification against system power delivery specifications. Packaging format selection between Tube (AT24C02D-XHM-B) and Cut Tape & Digi-Reel (AT24C02D-XHM-T) depends on assembly process requirements.

24VL025T/ST provides parametric equivalence with identical electrical performance characteristics (400 kHz clock frequency, 900 ns access time) and matching voltage supply range (1.5V ~ 3.6V). Cut Tape packaging format accommodates alternative procurement workflows while maintaining identical functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can AT24C02D-XHM-B or AT24C02D-XHM-T be used as direct replacements for 34VL02T/ST?

A: Yes, both parts are functionally compatible as direct replacements. All three devices share identical memory capacity (2Kbit), memory organization (256 x 8), I2C interface protocol, and 8-TSSOP package type. AT24C02D variants offer enhanced performance with higher clock frequency and faster access time. Verify system power supply minimum voltage requirement, as AT24C02D variants require minimum 1.7V versus 1.5V for 34VL02T/ST.

Q: What is the difference between AT24C02D-XHM-B and AT24C02D-XHM-T?

A: Both parts are electrically and mechanically identical with matching performance specifications. The primary difference is packaging format: AT24C02D-XHM-B is supplied in Tube packaging, while AT24C02D-XHM-T is supplied in Cut Tape & Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Is 24VL025T/ST a suitable alternative to 34VL02T/ST?

A: Yes, 24VL025T/ST is a parametric equivalent with identical electrical performance specifications including 400 kHz clock frequency, 900 ns access time, and 1.5V to 3.6V supply voltage range. Both devices operate across -20°C to 85°C temperature range and use 8-TSSOP surface mount packaging. The primary difference is packaging format: 24VL025T/ST is supplied in Cut Tape versus Tape & Reel for 34VL02T/ST.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts (AT24C02D-XHM-B, AT24C02D-XHM-T, and 24VL025T/ST) are ROHS3 compliant with unlimited moisture sensitivity level rating, matching the compliance profile of 34VL02T/ST.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by memory size (2Kbit), memory organization (256 x 8), interface protocol (I2C), package type (8-TSSOP), and mounting configuration (Surface Mount). All listed substitutes maintain these core specifications. Secondary considerations include clock frequency, access time, supply voltage range, and operating temperature range, which may vary between parts while maintaining functional compatibility.

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