CAT24C01VP2I-GT3 Equivalent & Substitute Parts

Part Overview

The CAT24C01VP2I-GT3 is a 1Kbit EEPROM memory IC manufactured by onsemi, featuring I2C interface operation at 400 kHz with 900 ns access time in an 8-TDFN (2x3) package. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile EEPROM
Memory Size	1Kbit
Memory Organization	128 x 8
Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5 ms
Supply Voltage	1.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-TDFN (2x3)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution for the CAT24C01VP2I-GT3 is determined by the following critical parameters:

Memory capacity (1Kbit), organization (128 x 8), and interface type (I2C 400 kHz)
Access time specification (900 ns minimum performance)
Supply voltage range (1.7V ~ 5.5V minimum requirement)
Operating temperature range (-40°C ~ 85°C minimum requirement)
Package compatibility (8-TDFN or 8-DFN in 2x3 footprint)

Substitute parts are grouped into two categories:

Direct Substitutes maintain all electrical and mechanical parameters identical to the main part, including 900 ns access time and 1.7V ~ 5.5V supply voltage range.

Parametric Equivalents meet the functional requirements but may have relaxed specifications in access time (3500 ns or 4.6 µs) or restricted supply voltage ranges (2.5V ~ 5.5V), which are acceptable for applications not requiring the faster 900 ns performance or lower voltage operation.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Access Time	Supply Voltage	Operating Temp	Package	Product Status
CAT24C01VP2I-GT3	onsemi	1Kbit	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	Obsolete
24AA014T-I/MC	Microchip Technology	1Kbit	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-DFN (2x3)	Active
24AA01T-I/MC	Microchip Technology	1Kbit	3500 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-DFN (2x3)	Active
24AA01T-I/MNY	Microchip Technology	1Kbit	3500 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	Active
24LC014T-E/MNY	Microchip Technology	1Kbit	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-TDFN (2x3)	Active
24LC01BHT-E/MNY	Microchip Technology	1Kbit	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-TDFN (2x3)	Active
24LC01BT-E/MC	Microchip Technology	1Kbit	4.6 µs	2.5V ~ 5.5V	-40°C ~ 125°C	8-DFN (2x3)	Active
24LC01BT-I/MC	Microchip Technology	1Kbit	4.6 µs	2.5V ~ 5.5V	-40°C ~ 85°C	8-DFN (2x3)	Active
24LC01BT-I/MNY	Microchip Technology	1Kbit	4.6 µs	2.5V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	Active
24AA014HT-I/MNY	Microchip Technology	1Kbit	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	Active
24AA014T-I/MNY	Microchip Technology	1Kbit	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

Select 24AA014HT-I/MNY or 24AA014T-I/MNY when 900 ns access time and 1.7V ~ 5.5V supply voltage range are required. Both parts are active status Microchip Technology products in 8-TDFN (2x3) packaging, providing pin-compatible substitution with identical electrical specifications. 24AA014HT-I/MNY is available in tape and reel packaging, while 24AA014T-I/MNY is supplied in cut tape format.

For Applications with Relaxed Access Time Requirements:

Select 24AA01T-I/MNY when 3500 ns access time is acceptable and 1.7V ~ 5.5V supply voltage range is required. This part maintains the same package footprint and operating temperature range as the original part.

For Extended Temperature Range Applications:

Select 24LC014T-E/MNY or 24LC01BHT-E/MNY when operating temperature range of -40°C ~ 125°C is required. Both parts maintain 900 ns access time but operate at 2.5V ~ 5.5V supply voltage. These parts are suitable for applications where lower supply voltage operation is not critical.

All recommended substitutes are active status products with RoHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can 24AA014T-I/MC be used as a direct replacement for CAT24C01VP2I-GT3?

A: 24AA014T-I/MC is electrically equivalent with matching 1Kbit capacity, 900 ns access time, and 1.7V ~ 5.5V supply voltage. However, it is supplied in 8-DFN (2x3) package rather than 8-TDFN (2x3). Verify PCB footprint compatibility before selection.

Q: What is the difference between 24AA01T-I/MNY and 24AA014T-I/MNY?

A: Both parts are 1Kbit I2C EEPROM in 8-TDFN (2x3) package with identical supply voltage (1.7V ~ 5.5V) and operating temperature (-40°C ~ 85°C). The primary difference is access time: 24AA01T-I/MNY specifies 3500 ns while 24AA014T-I/MNY specifies 900 ns. Select based on application timing requirements.

Q: Why do some substitutes have 2.5V minimum supply voltage instead of 1.7V?

A: Parts such as 24LC014T-E/MNY and 24LC01BHT-E/MNY are specified for 2.5V ~ 5.5V operation. These parts are suitable only for applications where the minimum supply voltage is 2.5V or higher. Verify system power supply specifications before selection.

Q: Are all substitute parts RoHS compliant?

A: All active status substitute parts listed are RoHS3 compliant. The original CAT24C01VP2I-GT3 is obsolete and RoHS status is not specified.

Q: What is the difference between tape and reel (TR) and cut tape (CT) packaging?

A: Tape and reel packaging is supplied on continuous carrier tape wound on reels for automated assembly. Cut tape packaging is supplied in shorter tape segments. Both formats contain identical components; selection depends on assembly equipment and order quantity requirements.

Q: Can 24LC01BT-I/MC be used in place of CAT24C01VP2I-GT3?

A: 24LC01BT-I/MC is functionally compatible for 1Kbit I2C EEPROM applications but has relaxed specifications: 4.6 µs access time (versus 900 ns), 2.5V ~ 5.5V supply voltage (versus 1.7V ~ 5.5V), and -40°C ~ 85°C operating temperature. Use only if application timing and voltage requirements permit these relaxed specifications.

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