24FC04T-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24FC04T-E/ST is a 4Kbit EEPROM memory integrated circuit manufactured by Microchip Technology. This non-volatile memory device operates via I2C interface at 1 MHz clock frequency and is housed in an 8-TSSOP surface mount package. The part is currently active in production with 898 pieces in stock inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same memory category, interface protocol, and package form factor. Alternative sources provide equivalent functionality for applications requiring component availability, supply chain flexibility, or specific manufacturer qualifications.

Substiute Parts

24FC04T-E/ST

Microchip TechnologyIn Stock: 91624FC04T-E/ST Datasheet

Current PartRFQ

M24C04-DRDW3TP/K

STMicroelectronicsIn Stock: 3024M24C04-DRDW3TP/K Datasheet

Parametric EquivalentRFQ

NV24C04DTVLT3G

onsemiIn Stock: 3863NV24C04DTVLT3G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24FC04T-E/ST are identified based on strict equivalence across the following critical parameters:

Memory Specifications: All substitute parts maintain 4Kbit capacity with I2C interface protocol and 1 MHz clock frequency operation.

Electrical Characteristics: Supply voltage range (1.7V to 5.5V), access time (450 ns), and operating temperature range (-40°C to 125°C) are identical across all listed substitutes.

Package Compatibility: All substitute parts utilize the 8-TSSOP surface mount package with identical physical dimensions (0.173", 4.40mm Width), ensuring direct PCB layout compatibility.

Compliance Standards: All parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity rating.

Functional Equivalence: Write cycle time variations (4ms to 5ms) and memory organization differences (256 x 8 x 2 versus 512 x 8) do not affect I2C interface compatibility or system-level functionality for standard EEPROM applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (24FC04T-E/ST): Use for applications requiring Microchip Technology sourcing or when existing supply chain relationships are established. Part is active with adequate inventory (898 pieces).

Automotive Applications: The M24C04-DRDW3TP/K and NV24C04DTVLT3G are both AEC-Q100 qualified, making them suitable for automotive-grade applications requiring formal qualification documentation. These parts are preferred when automotive compliance is a system requirement.

Supply Chain Flexibility: The NV24C04DTVLT3G (onsemi) offers the highest inventory availability (3839 pieces) and the M24C04-DRDW3TP/K (STMicroelectronics) provides 2990 pieces, both exceeding the primary part's stock level.

Performance Consideration: The M24C04-DRDW3TP/K and NV24C04DTVLT3G feature 4ms write cycle time compared to 5ms for the 24FC04T-E/ST, representing a 20% improvement in write performance while maintaining all other electrical and mechanical specifications.

Compliance Alignment: All three parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 1 ratings, ensuring regulatory equivalence across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can the M24C04-DRDW3TP/K directly replace the 24FC04T-E/ST on an existing PCB?

A: Yes. Both parts use identical 8-TSSOP package dimensions (0.173", 4.40mm Width) with surface mount configuration. Pin-to-pin compatibility is maintained for I2C interface connections. No PCB layout modifications are required.

Q: What is the significance of the write cycle time difference between 5ms and 4ms?

A: The write cycle time specifies the duration required to complete a single word or page write operation. The 4ms specification in M24C04-DRDW3TP/K and NV24C04DTVLT3G represents faster write completion compared to the 24FC04T-E/ST's 5ms specification. Both values are within acceptable ranges for standard I2C EEPROM applications and do not affect interface compatibility.

Q: Are the memory organization differences (256 x 8 x 2 versus 512 x 8) significant for substitution?

A: No. Both memory organizations provide 4Kbit total capacity accessible via I2C interface. The organizational structure is an internal implementation detail that does not affect external interface behavior, addressing scheme, or functional compatibility in standard applications.

Q: When should I select an AEC-Q100 qualified part?

A: Select M24C04-DRDW3TP/K or NV24C04DTVLT3G when your application or system specification explicitly requires automotive-grade components with formal AEC-Q100 qualification documentation. This is mandatory for automotive OEM supply chains and recommended for applications subject to automotive reliability standards.

Q: What is the impact of MSL 1 rating on component handling?

A: MSL 1 (Unlimited) indicates unlimited shelf life without moisture absorption concerns. All three parts carry this rating, eliminating moisture sensitivity as a differentiation factor. Standard surface mount assembly processes apply without special moisture control requirements.

Q: Are there any voltage supply compatibility issues between these parts?

A: No. All three parts operate across the identical 1.7V to 5.5V supply voltage range. System designs using any of these parts require no voltage regulation modifications for substitution.

Q: How do I verify pin compatibility for the 8-TSSOP package?

A: All three parts use the 8-TSSOP package with identical physical dimensions and surface mount configuration. Consult the respective manufacturer datasheets for detailed pinout diagrams to confirm I2C signal line assignments (SDA, SCL, VCC, GND) match your PCB design.