24FC08T-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24FC08T-E/ST is an 8Kbit 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 device is currently in active production status with 1775 units in stock.

Substitute parts are identified when equivalent electrical performance, memory capacity, interface protocol, and physical packaging are maintained across different manufacturers. Alternative sources become necessary for supply chain continuity, inventory management, or specific qualification requirements.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile EEPROM
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	I2C
Clock Frequency	1 MHz
Access Time	450 ns
Voltage Supply Range	1.7V ~ 5.5V
Operating Temperature Range	-40°C ~ 125°C (TA)
Package Type	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 24FC08T-E/ST are qualified based on the following criteria:

Electrical Parameters: Memory capacity (8Kbit), memory organization (1K x 8), interface protocol (I2C), clock frequency (1 MHz), access time (450 ns), and supply voltage range (1.7V ~ 5.5V) must be identical.

Thermal Parameters: Operating temperature range (-40°C ~ 125°C) must be maintained.

Physical Parameters: Package type (8-TSSOP) and mounting type (Surface Mount) must match.

Compliance Parameters: RoHS3 compliance and MSL rating (1) must be equivalent.

The identified substitute parts meet all these criteria and are therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Parameter	24FC08T-E/ST (Microchip)	M24C08-DRDW3TP/K (STMicroelectronics)	NV24C08DTVLT3G (onsemi)
Memory Size	8Kbit	8Kbit	8Kbit
Memory Organization	1K x 8	1K x 8	1K x 8
Memory Interface	I2C	I2C	I2C
Clock Frequency	1 MHz	1 MHz	1 MHz
Access Time	450 ns	450 ns	450 ns
Write Cycle Time	5ms	4ms	4ms
Voltage Supply Range	1.7V ~ 5.5V	1.7V ~ 5.5V	1.7V ~ 5.5V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package Type	8-TSSOP	8-TSSOP	8-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts maintain active production status and full RoHS3 compliance. The 24FC08T-E/ST and NV24C08DTVLT3G are available in Tape & Reel packaging, while the M24C08-DRDW3TP/K is supplied in Cut Tape & Digi-Reel format.

The M24C08-DRDW3TP/K and NV24C08DTVLT3G both carry AEC-Q100 automotive qualification and automotive-grade designation. The 24FC08T-E/ST does not specify automotive qualification.

Write cycle time differs slightly: the 24FC08T-E/ST specifies 5ms, while both substitute parts specify 4ms. This represents an improvement in write performance for the substitute options.

Selection between substitute parts should be based on packaging format requirements, automotive qualification necessity, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the M24C08-DRDW3TP/K replace the 24FC08T-E/ST in existing designs?

A: Yes. Both parts share identical memory capacity (8Kbit), memory organization (1K x 8), I2C interface, clock frequency (1 MHz), access time (450 ns), supply voltage range (1.7V ~ 5.5V), and operating temperature range (-40°C ~ 125°C). The 8-TSSOP package dimensions are identical. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and automotive qualification on the STMicroelectronics part.

Q: Can the NV24C08DTVLT3G replace the 24FC08T-E/ST in existing designs?

A: Yes. Both parts share identical memory capacity (8Kbit), memory organization (1K x 8), I2C interface, clock frequency (1 MHz), access time (450 ns), supply voltage range (1.7V ~ 5.5V), and operating temperature range (-40°C ~ 125°C). The 8-TSSOP package dimensions are identical. Both are supplied in Tape & Reel packaging. The NV24C08DTVLT3G carries AEC-Q100 automotive qualification.

Q: What is the significance of the write cycle time difference?

A: The 24FC08T-E/ST specifies a 5ms write cycle time, while the M24C08-DRDW3TP/K and NV24C08DTVLT3G specify 4ms. This represents faster write performance on the substitute parts. Both values are within acceptable ranges for I2C EEPROM devices and do not affect functional compatibility.

Q: Are there packaging considerations when selecting a substitute?

A: Yes. The 24FC08T-E/ST and NV24C08DTVLT3G are supplied in Tape & Reel format. The M24C08-DRDW3TP/K is supplied in Cut Tape & Digi-Reel format. Packaging selection depends on assembly line requirements and order quantity specifications.

Q: Does automotive qualification affect part selection?

A: Automotive qualification is application-dependent. The M24C08-DRDW3TP/K and NV24C08DTVLT3G both carry AEC-Q100 qualification and automotive-grade designation. The 24FC08T-E/ST does not specify automotive qualification. Selection should be based on end-application requirements.

Q: Are all three parts RoHS3 compliant?

A: Yes. All three parts are ROHS3 compliant with MSL rating 1 (Unlimited moisture sensitivity level).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message