24LC04BHT-I/SN EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC04BHT-I/SN is a 4Kbit EEPROM memory integrated circuit manufactured by Microchip Technology, designed for I2C serial communication applications. This non-volatile memory device operates at 400 kHz clock frequency with 900 ns access time and supports supply voltages from 2.5V to 5.5V across an operating temperature range of -40°C to 85°C. The device is packaged in an 8-SOIC surface mount configuration with a 0.154" (3.90mm) width.

The 24LC04BHT-I/SN maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Alternative equivalent and substitute parts are necessary to address supply chain flexibility, packaging format preferences, extended temperature range requirements, and design optimization across different application scenarios.

Key Parameters

Parameter	Value	Unit
Memory Size	4Kbit	bits
Memory Format	EEPROM	—
Memory Organization	256 x 8 x 2	—
Memory Interface	I2C	—
Clock Frequency	400	kHz
Access Time	900	ns
Write Cycle Time	5	ms
Voltage Supply Range	2.5V ~ 5.5V	V
Operating Temperature	-40°C ~ 85°C	°C
Package Type	8-SOIC	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC04BHT-I/SN is determined by strict alignment with the following critical parameters:

Core Electrical Parameters (Must Match):

Memory Size: 4Kbit
Memory Interface: I2C
Clock Frequency: 400 kHz
Access Time: 900 ns
Write Cycle Time: 5 ms
Voltage Supply Range: 2.5V ~ 5.5V (minimum requirement)
Operating Temperature Range: -40°C ~ 85°C (minimum requirement)

Physical Parameters (Must Match):

Package Type: 8-SOIC
Mounting Type: Surface Mount
Package Width: 0.154" (3.90mm)

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

Substitute parts are grouped into the following categories based on their relationship to the main part:

Direct Packaging Equivalent: Parts with identical electrical specifications but different packaging formats (Tube vs. Tape & Reel).

Manufacturer Recommended Equivalents: Parts from the same or alternative manufacturers that meet or exceed all electrical and physical requirements with verified programmability status.

Parametric Equivalents: Parts that satisfy all core electrical and physical parameters with potential variations in product status, programmability verification, or moisture sensitivity rating.

Parameter Comparison

Parameter	24LC04BHT-I/SN (Main)	24LC04BH-I/SN	24AA04T-I/SN	24LC04BT-E/SN	24LC04BT-I/SN	M24C04-WMN6TP
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	STMicroelectronics
Memory Size	4Kbit	4Kbit	4Kbit	4Kbit	4Kbit	4Kbit
Memory Organization	256 x 8 x 2	256 x 8 x 2	256 x 8 x 2	256 x 8 x 2	256 x 8 x 2	512 x 8
Memory Interface	I2C	I2C	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz	400 kHz	400 kHz	400 kHz
Access Time	900 ns	900 ns	900 ns	900 ns	900 ns	900 ns
Write Cycle Time	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms
Voltage Supply Range	2.5V ~ 5.5V	2.5V ~ 5.5V	1.7V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Packaging Format	Cut Tape & Digi-Reel	Tube	Cut Tape & Digi-Reel	Cut Tape & Digi-Reel	Cut Tape & Digi-Reel	Cut Tape & Digi-Reel
Product Status	Active	Active	Active	Active	Active	Not For New Designs
Programmability Verified	Not Verified	Not Verified	Verified	Verified	Verified	Verified
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

24LC04BH-I/SN (Direct Packaging Equivalent)

The 24LC04BH-I/SN is functionally identical to the main part with all electrical and thermal specifications matching exactly. The primary distinction is packaging format: this part is supplied in Tube packaging rather than Cut Tape & Digi-Reel format. Selection of this part is appropriate when Tube packaging aligns with assembly line requirements or inventory management protocols. Product status is Active with ROHS3 compliance and unlimited moisture sensitivity rating.

24AA04T-I/SN (Manufacturer Recommended Equivalent)

The 24AA04T-I/SN from Microchip Technology meets all core electrical specifications with an extended voltage supply range of 1.7V to 5.5V, providing additional design margin for low-voltage applications. This part carries verified programmability status and Active product designation. Selection is appropriate for applications requiring lower supply voltage operation or when verified programmability is a design requirement. Moisture sensitivity rating is unlimited (MSL 1).

24LC04BT-E/SN (Manufacturer Recommended Equivalent)

The 24LC04BT-E/SN provides extended operating temperature range of -40°C to 125°C compared to the standard -40°C to 85°C range of the main part. All other electrical parameters match the main part specification. This part carries verified programmability status and Active product designation. Selection is appropriate for applications requiring operation in elevated temperature environments. Moisture sensitivity rating is unlimited (MSL 1).

24LC04BT-I/SN (Parametric Equivalent)

The 24LC04BT-I/SN meets all core electrical and physical specifications with verified programmability status and Active product designation. The moisture sensitivity level is rated at MSL 3 (168 Hours), which is more restrictive than the main part's unlimited rating. Selection is appropriate when programmability verification is required and moisture sensitivity constraints are acceptable for the application environment.

M24C04-WMN6TP (Parametric Equivalent - Alternative Manufacturer)

The M24C04-WMN6TP from STMicroelectronics satisfies all core electrical parameters and physical package requirements. Memory organization differs at 512 x 8 versus the main part's 256 x 8 x 2 configuration, though total capacity remains 4Kbit. This part carries verified programmability status but is designated as "Not For New Designs" by the manufacturer. Selection is restricted to legacy system support or replacement scenarios where existing designs already incorporate this part. Moisture sensitivity rating is unlimited (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can the 24LC04BH-I/SN be used as a direct replacement for the 24LC04BHT-I/SN?

A: Yes. The 24LC04BH-I/SN is electrically and thermally identical to the main part. The only difference is packaging format: Tube versus Cut Tape & Digi-Reel. Compatibility depends on whether your assembly process accommodates Tube packaging.

Q: What is the difference between the 24AA04T-I/SN and the main part?

A: The 24AA04T-I/SN extends the minimum supply voltage to 1.7V compared to the main part's 2.5V minimum. All other electrical specifications are identical. This part is suitable for low-voltage applications and carries verified programmability status.

Q: Why is the 24LC04BT-E/SN recommended for high-temperature applications?

A: The 24LC04BT-E/SN operates across -40°C to 125°C, extending the upper temperature limit by 40°C beyond the main part's -40°C to 85°C range. All other specifications remain identical, making it suitable for thermal environments exceeding 85°C.

Q: What does "Not For New Designs" mean for the M24C04-WMN6TP?

A: This designation indicates the manufacturer (STMicroelectronics) does not recommend this part for new product development. It remains available for legacy system support and replacement applications. New designs should prioritize the Microchip Technology alternatives listed in this reference.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and REACH Unaffected status, matching the main part's regulatory compliance profile.

Q: What is the significance of moisture sensitivity level (MSL) differences?

A: MSL rating indicates the maximum time a component can be exposed to moisture before soldering. The main part and most substitutes carry MSL 1 (Unlimited), meaning no time restriction. The 24LC04BT-I/SN carries MSL 3 (168 Hours), requiring soldering within 168 hours of package opening. Selection depends on your manufacturing environment and storage protocols.

Q: Can I use the M24C04-WMN6TP in a new design?

A: The M24C04-WMN6TP is designated "Not For New Designs" by STMicroelectronics. For new product development, select from the Microchip Technology alternatives: 24LC04BH-I/SN, 24AA04T-I/SN, 24LC04BT-E/SN, or 24LC04BT-I/SN.

Q: Do all substitute parts support the same I2C clock frequency?

A: Yes. All substitute parts operate at 400 kHz I2C clock frequency with 900 ns access time and 5 ms write cycle time, matching the main part specification.

Q: What packaging formats are available for these parts?

A: The main part and most substitutes are supplied in Cut Tape & Digi-Reel format. The 24LC04BH-I/SN is available in Tube packaging. All parts use 8-SOIC surface mount package with 0.154" (3.90mm) width.

Q: Which substitute part has verified programmability?

A: The 24AA04T-I/SN, 24LC04BT-E/SN, 24LC04BT-I/SN, and M24C04-WMN6TP all carry verified programmability status. The main part (24LC04BHT-I/SN) and 24LC04BH-I/SN have programmability status listed as "Not Verified."

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