Equivalent & Substitute Parts for 24LC04BHT-I/OT

Part Overview

The 24LC04BHT-I/OT is a 4Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface communication at 400 kHz with 900 ns access time. The device is packaged in SOT-23-5 surface mount configuration and operates across a supply voltage range of 2.5V to 5.5V with temperature range of -40°C to 85°C. This part is currently in active production status with 2300 units in stock. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure functional compatibility in circuit applications.

Key Parameters

Parameter	Value
Memory Size	4Kbit
Memory Format	EEPROM
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	SOT-23-5
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24LC04BHT-I/OT are classified based on the following substitution criteria:

Primary Substitution Parameters:

Memory capacity: 4Kbit
Memory type: EEPROM non-volatile
Interface protocol: I2C
Package: SOT-23-5 surface mount
Write cycle time: 5ms
RoHS3 compliance

Substitution Categories:

Category 1: Direct Electrical Equivalents (Identical Parameters) Parts meeting all primary parameters with matching voltage supply range (2.5V ~ 5.5V), clock frequency (400 kHz), and access time (900 ns). These parts are pin-compatible and functionally identical.

Category 2: Extended Voltage Range Equivalents Parts with expanded lower voltage supply limit (1.7V ~ 5.5V) compared to the main part (2.5V ~ 5.5V). These parts are backward compatible with 2.5V minimum supply applications and provide additional flexibility for lower voltage designs.

Category 3: Enhanced Performance Variants Parts with higher clock frequency (1 MHz) and faster access time (550 ns) while maintaining 4Kbit capacity and I2C interface. These parts are functionally compatible but offer improved speed performance.

Category 4: Alternative Manufacturer Options Parts from different manufacturers (onsemi) meeting equivalent electrical and package specifications, providing supply chain alternatives.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package	Inventory	Status
24LC04BHT-I/OT	Microchip	4Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	SOT-23-5	2300	Active
24AA04HT-I/OT	Microchip	4Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	SOT-23-5	9400	Active
24AA04T-I/OT	Microchip	4Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	SOT-23-5	1709	Active
24LC04BT-E/OT	Microchip	4Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	SOT-23-5	28836	Active
24LC04BT-I/OT	Microchip	4Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	SOT-23-5	21300	Active
AT24C04C-STUM-T	Microchip	4Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	SOT-23-5	5200	Active
AT24CS04-STUM-T	Microchip	4Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	SOT-23-5	3300	Active
CAT24C04TDI-GT3	onsemi	4Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	TSOT-23-5	45420	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): Select 24LC04BT-I/OT when maintaining exact voltage supply range (2.5V ~ 5.5V) and temperature specifications (-40°C ~ 85°C). This part provides the highest inventory availability at 21300 units and is verified for DiGi-Electronics programmability.

For Extended Temperature Range Applications: Select 24LC04BT-E/OT when operating temperature extends to 125°C. This part maintains identical voltage supply range and electrical parameters while providing expanded thermal operating window. Inventory availability is highest among all substitutes at 28836 units.

For Lower Voltage Supply Applications: Select 24AA04HT-I/OT or 24AA04T-I/OT when minimum supply voltage requirement is 1.7V. Both parts maintain 400 kHz clock frequency and 900 ns access time. 24AA04HT-I/OT offers superior inventory (9400 units) compared to 24AA04T-I/OT (1709 units).

For Higher Speed Requirements: Select AT24C04C-STUM-T or AT24CS04-STUM-T when 1 MHz clock frequency and 550 ns access time are required. Both parts support 1.7V minimum supply voltage. AT24C04C-STUM-T provides higher inventory at 5200 units.

For Supply Chain Diversification: Select CAT24C04TDI-GT3 from onsemi manufacturer when supply chain redundancy is required. This part offers highest inventory availability at 45420 units, supports 1.7V minimum supply voltage, and maintains 400 kHz clock frequency with 900 ns access time. Package variant is TSOT-23-5 (thin SOT-23-5).

All substitute parts maintain ROHS3 compliance, 5ms write cycle time, and active production status.

Frequently Asked Questions (FAQ)

Q: Can 24AA04HT-I/OT replace 24LC04BHT-I/OT in all applications? A: Yes, for applications operating at 2.5V or higher supply voltage. The 24AA04HT-I/OT supports lower minimum voltage (1.7V) and is backward compatible with 2.5V ~ 5.5V range. All electrical parameters including clock frequency, access time, and memory organization are identical.

Q: What is the difference between 24LC04BT-E/OT and 24LC04BT-I/OT? A: The primary difference is operating temperature range. 24LC04BT-E/OT operates from -40°C to 125°C, while 24LC04BT-I/OT operates from -40°C to 85°C. All other electrical parameters are identical. Select 24LC04BT-E/OT for high-temperature applications.

Q: Are AT24C04C-STUM-T and AT24CS04-STUM-T interchangeable? A: Both parts share identical electrical specifications (1 MHz clock frequency, 550 ns access time, 1.7V ~ 5.5V supply range). They are functionally equivalent for I2C EEPROM applications. Selection depends on inventory availability and specific application requirements.

Q: Is CAT24C04TDI-GT3 from onsemi pin-compatible with Microchip parts? A: Yes, CAT24C04TDI-GT3 maintains SOT-23-5 package compatibility (TSOT-23-5 variant) and identical pin configuration. Electrical parameters match the main part at 400 kHz clock frequency and 900 ns access time. It is suitable as a supply chain alternative.

Q: Can I use AT24C04C-STUM-T in place of 24LC04BHT-I/OT for lower voltage applications? A: Yes. AT24C04C-STUM-T supports 1.7V minimum supply voltage compared to 24LC04BHT-I/OT at 2.5V. Additionally, it offers enhanced performance with 1 MHz clock frequency and 550 ns access time. It is functionally compatible and provides performance improvement.

Q: What packaging differences exist between these substitutes? A: All parts use SOT-23-5 surface mount package with identical pin count and configuration. CAT24C04TDI-GT3 uses TSOT-23-5 (thin variant) which maintains mechanical compatibility. No package adapter or redesign is required for substitution.

Q: Are all substitute parts ROHS3 compliant? A: Yes, all listed substitute parts maintain ROHS3 compliance status, matching the main part specification.

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